ETA 070193 Dolle Modular amend Final - ETA-Danmark

ETA-Danmark A/S 

Kollegievej 6 

DK-2920 Charlottenlund 

Tel. +45 72 24 59 00 

Fax +45 72 24 59 04 

Internet www.etadanmark.dk 

Authorised and notified according to 

Article 10 of the Council Directive 

89/106/EEC of 21 December 1988 on 

the approximation of laws, regulations 

and administrative provisions of 

Member States relating to construction 

products 

European Technical Approval ETA-07/0193 

MEMBER OF EOTA 

This ETA replaces the previous ETA with the same number and validity from 2008-03-19 to 2013-03-19 

Trade name: 

Holder of approval: 

Generic type and use of construction 

product: 

Valid from: 

to: 

Manufacturing plant: 

This European Technical 

Approval contains: 

Dolle Modular Staircases type Graz, Berlin, Columna, 

New York, Hamburg, Rome and Basel 

Dolle A/S 

Vestergade 47 

DK-7741 Frøstrup 

Telephone +45 97 99 14 22 

Telefax +45 97 99 17 45 

Internet www.dolle.com 

Prefabricated stair kit 

2011-09-28 

2016-09-28 

Dolle A/S 

Vestergade 47 

DK-7741 Frøstrup 

54 pages including 12 annexes which form an 

integral part of the document

Page 2 of 54 of European Technical Approval no. ETA-07/0193 

The stair kits covered by this ETA are placed on the market with various trade names as indicated in the below table: 

Primary name Trade name 1 Trade name 2 Trade name 3 Trade name 4 

Graz Athena 

Berlin Copenhagen Swing 

Columna Hetra Chicago Salsa Elez 

New York Vitra Flamenco 

Hamburg 

Rome Alterna Lambada 

Basel Jive

I LEGAL BASIS AND GENERAL 

CONDITIONS 


1 This European Technical Approval is issued by 

ETA-Danmark A/S in accordance with: 

- Council Directive 89/106/EEC of 21 December 

1988 on the approximation of laws, regulations 

and administrative provisions of Member States 

relating to construction products 1 , as amended by 

Council Directive 93/68/EEC of 22 July 1993 2 . 

- Bekendtgørelse 559 af 27-06-1994 (afløser 

bekendtgørelse 480 af 25-06-1991) om ikrafttræden 

af EF direktiv af 21. december 1988 om 

indbyrdes tilnærmelse af medlemsstaternes love 

og administrative bestemmelser om byggevarer. 

- Common Procedural Rules for Requesting, 

Preparing and the Granting of European Technical 

Approvals set out in the Annex to Commission 

Decision 94/23/EC 3 . 

- EOTA Guideline ETAG 008 Prefabricated stair 

kits, January 2002 edition. 

2 ETA-Danmark A/S is authorized to check whether 

the provisions of this European Technical 

Approval are met. Checking may take place in the 

manufacturing plant. Nevertheless, the responsibility 

for the conformity of the products to the 

European Technical Approval and for their fitness 

for the intended use remains with the holder of 

the European Technical Approval. 

3 This European Technical Approval is not to be 

transferred to manufacturers or agents of manufacturers 

other than those indicated on page 1, or 

manufacturing plants other than those indicated 

on page 1 of this European Technical Approval. 

4 This European Technical Approval may be 

withdrawn by ETA-Danmark A/S pursuant to 

Article 5(1) of Council Directive89/106/EEC. 

1 Official Journal of the European Communities N o L40, 11 Feb 

1989, p 12. 

2 Official Journal of the European Communities N o L220, 30 Aug 

1993, p 1. 

3 Official Journal of the European Communities N o L 17, 20 Jan 1994, 

p 34. 

5 Reproduction of this European Technical Approval 

including transmission by electronic means shall be 

in full. However, partial reproduction can be made 

with the written consent of ETA-Danmark A/S. In 

this case partial reproduction has to be designated as 

such. Texts and drawings of advertising brochures 

shall not contradict or misuse the European Technical 

Approval. 

6 This European Technical Approval is issued by ETA- 

Danmark A/S in Danish. 

This version corresponds fully to the version circulated 

within EOTA. Translations into other languages 

have to be designated as such.


II SPECIAL CONDITIONS OF THE 

EUROPEAN TECHNICAL APPROVAL 

1 Definition of product and intended use 

Definition of the product 

Dolle modular staircases type Graz, Berlin, Columna, New 

York, Hamburg, Rome and Basel (in this ETA also referred 

to as stair) are prefabricated staircases. 

Staircase type Copenhagen is a version of type Berlin with 

12 steps. Type Copenhagen is technically identical to type 

Berlin; the only difference is the specific number of steps 

and the trade name. 

The stair consists of string elements on which the steps are 

mounted. Additional angles and columns can be installed 

for extra support (required if specified in the technical 

documentation of the product). Steps can either be in 

regular shapes or in tapered shapes, in quarter, half and full 

turns the steps are always tapered. The steps are made of 

solid wood, which can be either massive, laminated or 

plywood or glass or steel. The string elements are made of 

steel or aluminium. The optional banister can be made as a 

combination of solid wood, metal balusters, tube filling or 

other kinds of filling, such as a wire banister. As 

connectors between parts of the railing can be used 

different types of fittings made of steel, aluminium or 

plastic. The banister does not contribute to the load bearing 

capacity of the stair and is not intended to withstand any 

impact loads. However, if required in the technical 

documentation of the stair the banister can be considered as 

a structural member. Since the banister is not necessarily a 

part of the kit, the resistance to horizontal loads is not 

determined. The torsional force in the string resulting from 

a horizontal load on the barrier/handrail has to be 

calculated on a case by case basis depending on the 

prevailing national provisions for this type of stair kit. 

The centre string modules consist of a bottom element to 

be fixed on a proper floor, standard elements and a top 

element to be fixed on the wall or the deck of the upper 

floor. The string modules can be fixed to each other 

according to the different structural principles illustrated 

in annex 1 and can be installed to meet the various types 

of plans illustrated in annex 2. According to the types of 

plan it can be either straight, curved, S-shaped, helical or 

square with 1 or more quarter turns according to the 

documentation of the product. 

Intended use 

The Modular staircase may be used as an indoor staircase 

in buildings of category A, EN 1991-1-1:2002 with air 

temperatures between +5 and +30°C and relative air 

humidity between 30 and 70%. 

Modular staircases are used as permanent access to living 

areas. 

Dolle Modular staircases are defined as means of internal 

access under the category “floors” because this type of 

staircase is for use in private homes as opposed to stairs, 

which are used as external access in larger building 

complexes. 

Assumed working life 

The assumed intended working life of the stair kits for the 

intended use is 25 years, provided that they are subject to 

appropriate use and maintenance. 

The information on the working life should not be regarded 

as a guarantee provided by the manufacturer or ETA- 

Danmark A/S. An “assumed intended working life” means 

that it is expected that, when this working life has elapsed, 

the real working life may be, in normal use conditions, 

considerably longer without major degradation affecting 

the essential requirements.


2 Characteristics of product and assessment 

2.1 General 

The Modular staircases correspond to the drawings and data of annexes 1 - 12. The material values, dimensions and 

tolerances of the components of the Modular staircase not indicated in the annexes shall correspond to the values 

laid in the technical documentation 4 . 

2.2 Mechanical resistance and stability 

2.2.1 General 

The Modular staircase has a sufficient mechanical resistance and stability in order to resist static or quasi-static 

loads. The characteristic values of resistance of the stair were determined by structural analysis and subsequent 

testing and are given in the tables x.4 to x.6 annex 6 to 12. The structural analysis is an integral part of the technical 

documentation of this ETA. 

2.2.2 Prevention of progressive collapse 

The assessment of the design of the Modular staircase shows that the failure of individual components of the 

staircase does not lead to a progressive collapse of the complete staircase. 

2.2.3 Residual load-bearing capacity 

It can be assumed that a local material failure does not lead to an abrupt loss of load-bearing capacity of the steps. 

2.2.4 Long term behaviour 

It can be assumed that the characteristic values of resistance stated in the tables x.4 to x.6 annex 6 to 12are ensured 

over the indicated working life. 

2.2.5 Resistance to earthquakes 

No performance determined. 

2.2.6 Load/displacement behaviour and vibration behaviour 

The characteristic values concerning the load/displacement behaviour were determined by testing. The values 

determined are given in the tables x.4 to x.6 annex 6 to 12. The vibration behaviour was determined by 

assessment. The staircase shows under dead load as well as a single load of F = 1,0 kN acting on the most 

unfavourable point of deflection of w ≤ 5 mm. The first natural frequency under these loads is greater than 5 

Hz. 

2.2.7 Resistance of the fixing 

No performance determined. The reactions from the stair acting on the construction works are given in the 

manufacturer’s technical information. 

2.3 Safety in case of fire 

2.3.1 Reaction to fire 

Modular staircase in general: Performance class F (no performance determined). 

The components made from steel or aluminium are classified as Euroclass A1 in accordance with EN 13501-1 and 

EC decision 96/603/EC, amended by EC Decision 2000/605/EC 

2.3.2 Fire resistance 


4 The technical documentation comprises all information of the holder of this ETA necessary for the production, installation and 

maintenance of the stair; these are in particular the structural analysis, design drawings and the manufacture’s installation 

instructions. The part to be treated confidentially is deposited with ETA-Danmark and, as far as this is relevant to the tasks of the 

approved bodies involved in the procedure of attestation of conformity, shall be handed over to the approved body.

2.4. Hygiene, health and environment 


The declaration of the manufacturer states that Modular staircase do not contain substances which have to be 

classified as dangerous according to Regulation 1272/2008 and/or listed in the "Indicative list on dangerous 

substances" of the EGDS and/or substances that may be dangerous to the users of the work and the environment- 

taking into account the installation conditions of the construction product and the release scenarios resulting from 

there. Components from wood based products fulfil the class E1 according to EN 13986. 

Note: In addition to the specific clauses relating to dangerous substances contained in this European Technical 

Approval, there may be other requirements applicable to the products falling within its scope (e.g. transposed 

European legislation and national laws, regulations and administrative provisions). In order to meet the provisions 

of the Construction Products Directive, these requirements need also to be complied with, when and where they 

apply. 

2.5 Safety in use 

2.5.1 Geometry of the stair 

The geometry of the stair is stated in Annex 1 - 12. The position of the constant pitch line / walking line is 

exemplified in Annex 1. The dimensions of the landings, number of raisers, tread angle, overlap, and going etc. 

results from the specific case of use 

2.5.2 Slipperiness 


2.5.3 Equipment of the stair for a safe use 

• Barrier and handrail: 

The characteristic values concerning the capacity of the handrail were determined by testing. The values 

determined are given in the tables x.4 to x.6 annex 6 to 12 

Note. Barrier and handrail can be components of the stair. The upper end of the barrier serves as handrail. 

Either vertical balusters or wires are used as fill-in elements. Barriers consisting of vertical balusters will not 

support climb ability for infants. An illustration and the dimensions of the barrier and handrail are given in 

annex 3. 

Barriers consisting of vertical balusters will not support climb ability for infants. 

Based on the stated vertical distance of the wires, it is assessed that the ladder effect is prohibited. However, 

due to the different types of barrier and hand rails, which are available, the climb ability for infants shall be 

assessed and in compliance with the local rules and regulations valid in each case. 

• Tactility and visibility: 


2.5.4 Safe breakage of components 

The safe breakage of components has not been tested. However, for stairs in which the modules are made in die cast 

aluminium it is assessed that a brittle failure of individual components is excluded according to the technical 

documentation. It can be assumed that a brittle failure of individual components is excluded. 

2.5.5 Impact resistance 


2.6 Durability and serviceability 

2.6.1 Resistance to deterioration caused by physical, chemical and biological agents 

It can be assumed that the stair has for the intended use adequate resistance to physical agents (effects of 

temperature and variations of relative humidity), chemical agents (effects of cleaning agents, water, carbon dioxide,


oxygen and naturally occurring corrosives and pollution agents) and biological agents (effects of fungi, bacteria, 

algae and insects) at an indoor climate with air temperatures between +5 and +30°C and relative air humidity 

between 30 and 70 %. 

2.6.2 Finishes and surface layers 

The components from solid wood and wood based products are either untreated or varnished. The components from 

steel and aluminium are corrosion protected. 

3 Attestation of Conformity and 

CE marking 

3.1 Attestation of Conformity system 

According to Decision 99/89/EC of the European Commission, the system of attestation of conformity is 2+ described 

in Council Directive 89/106/EEC (Construction Products Directive) Annex III. 

In addition, according to Decision 2001/596/EC of the European Commission, the system 4 of attestation of conformity 

applies with regard to reaction to fire with the performance class F. 

System 2+: 

a) Tasks for the manufacturer: 

(1) Factory production control, 

(2) Initial type testing of the product 

(3) Testing of samples taken at the factory in accordance with the prescribed test plan, 

b) Tasks for the notified body: 

(1) Initial inspection of the factory and the factory production control, 

(2) Assessment, approval and continuous surveillance of the factory production control 

System 4: 

a) Tasks for the manufacturer: 

3.2 Responsibilities 

(1) Factory production control, 

(2) Initial type testing of the product, 

3.2.1 Tasks of the manufacturer 

3.2.1.1 Factory production control 

The manufacturer has a factory production control system in the plant and exercises permanent internal control of 

production. All the elements, requirements and provisions adopted by the manufacturer are documented in a 

systematic manner in the form of written policies and procedures. This production control system ensures that the 

product is in conformity with the European Technical Approval. 

The manufacturer shall only use raw materials supplied with the relevant inspection documents as laid down in the 

control plan 5 . The incoming raw materials shall be subject to controls and tests by the manufacturer before acceptance. 

The manufactured components are checked visually and for dimensions. 

5 The control plan has been deposited at the ETA-Danmark A/S and is only made available to the approved bodies involved in the 

conformity attestation procedure.


The control plan, which is part of the technical documentation of this European Technical Approval, includes details 

of the extent, nature and frequency of testing and controls to be performed within the factory production control and 

has been agreed between the approval holder and ETA-Danmark A/S. 

The results of factory production control are recorded and evaluated. 

The records shall be presented to ETA-Danmark A/S on request 

3.2.1.1 Initial type testing of the product 

For initial type-testing the results of the tests performed as part of the assessment for the European Technical Approval 

shall be used unless there are changes in the production line or plant. In such cases the necessary initial type testing 

has to be agreed between ETA-Danmark A/S and the notified body 

3.2.2. Tasks of notified bodies 

3.2.2.1 Initial inspection of the factory and the factory production control 

The approved body should ascertain that, in accordance with the control plan, the factory, in particular the staff and 

equipment, and the factory production control, are suitable to ensure a continuous and orderly manufacturing of the 

stair kits with the specifications given in part 2. 

3.2.2.2 Continuous surveillance 

The approved body shall visit the factory at least twice a year for routine inspections. It shall be verified that the 

system of factory production control and the specified manufacturing processes are maintained, taking account of the 

control plan. 

The results of product certification and continuous surveillance shall be made available on demand by the certification 

body to ETA-Danmark A/S. Where the provisions of the European Technical Approval and the control plan are no 

longer fulfilled, the certificate of conformity shall be withdrawn by the approved body. 

3.3 CE marking 

The CE marking shall be affixed on a label attached to the stair or on the accompanying commercial documents (e.g. 

the EC declaration of conformity). The CE marking consists of the initials “CE” followed by the identification number 

of the certification body. In addition the following information shall be given: 

- Name or identifying mark of the manufacturer of the stair 

- The last two digits of the year in which the marking was affixed 

- Number of the EC certificate of conformity for the factory production control 

- The identification number of the notified body 

- Number of the European Technical Approval 

- Number of ETA Guideline; ETAG 008, part 1 

- Name of product 

If the CE marking is affixed on the accompanying commercial documents, the following minimum information shall 

be given on a label attached to the stair: 

- Initials “CE” followed by the identification number of the certification body 

- Name or identifying mark of the manufacturer of the stair 

- The last two digits of the year in which the CE marking was affixed 

- Number of the ETA 

- Identification of the stair (trade name).


4 Assumptions under which the fitness of the product for the intended use was favourably 

assessed 

4.1 Manufacturing 

The stair is manufactured according to the conditions of the ETA in a prescribed manufacturing process which is 

determined on the inspection of the factory by ETA-Danmark and the approved inspection body and laid down in the 

technical documentation. 

The European Technical Approval is issued for the product on the basis of agreed data/information, deposited with 

ETA-Danmark, which identifies the product that has been assessed and judged. Changes to the product or production 

process, which could result in this deposited data/information being incorrect, should be notified to ETA-Danmark 

before the changes are introduced. ETA-Danmark will decide whether or not such changes affect the ETA and 

consequently the validity of the CE marking on the basis of the ETA and if so whether further assessment or alterations 

to the ETA shall be necessary. 

4.2 Installation 

4.2.1 Design 

The fitness for use of the stair is given under the following assumptions: 

The stair is designed according to the drawings and data of the annexes and the technical documentation to this ETA. 

The stair is fixed to the construction works according to the drawings and data of the annexes and the technical 

documentation to this ETA. The proof of the transmission of loads in the construction works are made by the engineer 

responsible for the construction works. The characteristic values of resistance according to annex 6, 7, 8, 9, 10, 11 and 

12 are not exceeded. 

4.2.2Installation 

The fitness for use of the stair can be assumed only, if the following installation conditions are adhered to: 

- Installation only in the way as specified in the technical documentation of this ETA; 

- Installation of the timber components when moisture content of the timber components is 8 ± 2% 

- Sufficient support of the stair when assembling; 

- Installation of the steps without imposed deformations; 

- Installation of steps without significant defects and cracks; 

- Replacing of steps, which begin tearing when assembling; 

4.2.3 Manufacturer’s responsibilities 

It is the manufacturer’s responsibility to make sure that all persons involved will be appropriately informed about 

the specific conditions according to sections 1, 2, 4.2.1 and 4.2.2 including the annexes to which reference is being 

made as well as the not confidential parts of the technical documentation deposited to this ETA.


5 Recommendations for the manufacturer 

5.1 Recommendations regarding packaging, transport and storage 

The components of wood should be packed such that the wood moisture is 8 ± 2 % during transport and storage. 

5.2 Recommendations regarding use, maintenance and repair 

In his instructions for use the manufacturer should provide information as to use, maintenance and repair of the 

stair. At least the following information should be given: 

- No moisture penetration of the wooden components. 

Thomas Bruun 

Manager, ETA-Danmark


Annex 1 Product and intended use 

- Clamp fixing 

1) Geometry and dimensions according to annex 6, 7, 8, 9, 10, 11 and 12 

2) Socket set screw fixing only with appropriate technical documentation (dynamic testing of mounting principle) 

Figure 1. Types of construction


Annex 2 Fixing of standard elements Set screw -, clamp-, and expansion fixings

Illustration of clamp fixing. 

Page 13 of 54 of European Technical Approval no. ETA-07/0193


Annex 3 Mounting of string system to the floors. Bottom and top mounting principles


Annex 4 Quarter turns. Requirements for quarter turns


Annex 5 Banister types.


Annex 6 Components, dimensions, geometry and characteristic values for space saving stair type GRAZ 

The flight can turn both ways. 

Quarter turns of regular treads, only according to technical documentation of the stair and mounting instructions (column support, 

angle-wall support, load bearing bolts etc.) 

Figure 6.1 – types of plan and walking line, type Graz





Geometry and dimensions of the works and treads according to annex 6 and 7 

Figure 6.2 – types of plan and walking line, type Graz


Table 6.1: Components and materials - Graz 

Components of stair - Graz Material Characteristic values (minimum values) 

E0 Gmean fm,k Fv,k γM 1) 

Components from wood based products 

[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [-] 

Steps Plywood 2) 10000 600 30 3 1,5 

E G fy,k fu,k γM 1) 

Components from steel 

[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Center String modules and banister. Steel 

(S235JRG2) 

210000 81000 235 360 1,1 

Set screws Steel S275 210000 81000 275 410 1,1 

Fixings NPD 

1) Recommended partial safety factor, in absence of other national regulations. 

2) The plywood shall comply with the values indicated in the table 

Table 6.2: Minimum dimensions of essential components of stair - Graz 

Components of stair Dimension Value 

Positive part of string modules 1) 3) Outer Diameter (d) 76 mm 

Thickness (t) 3,8 mm 

Tube Length std. Element 288 mm 

Tube Length base plate 143 mm 

Negative part of string modules 1) 3) Inner Diameter (d) 78,9 mm 

Thickness (t) 5 mm 

Tube Length top element 170 mm 

Tube Length std. element 170 mm 

Tube Length bottom element 135 mm 

Top plate 3) Thickness (t) 5 mm 

Max horizontal hole distance 3) 260 mm 

Max vertical hole distance 3) 65 mm 

Base plate 3) Thickness (t) 5 mm 

Width 200 mm 

Length 200 mm 

Element banister (baluster/handrail) 2) 3) Diameter (d) 25 mm 


Step 3) Thickness 35 mm 

Socket set screw 4) Diameter M8 

Length 6 mm 

1) General tolerances according to ISO-2768-m 

2) Element banister functioning as load bearing bolts! 

3) Drawings can be commissioned from the manufacture. 

4) EN ISO 4026


Table 6.3: Geometry - Graz 

Designation 

Dimension 

Minimum Maximum 

Going Tapered step 1) [mm] 120 2)3) 210 2)4) 

Step angle [°] - 22,5 

Rise of the stairs 

[mm] 185 225 

Pitch of the walkingline 

[°] 53,16 58,40 

Overlap of the steps [mm] -17,5 5) 72,5 

Number of rises [-] 3 13 

Openings Between barrier and other parts of the stair 6) [mm] - 6) 167 

Between stairs and wall [mm] 15 50 7) 

Between consecutive steps [mm] 150 190 

Between balusters/wires [mm] 100 130 

Clear width of stairs [mm] - 520 

Minimum headroom [mm] - 6) 

Length of the flight [mm] - 6) 2915 

Thickness of steps [mm] 35 - 6) 

Height of the barrier/handrail [mm] 900 1000 

Thickness of the handrail (Diameter) [mm] - 6) 25 

1) Values in the one side of the asymmetric offset steps. 

2) Tolerance between nominal value and actual value = ±5 mm 

3) Inside tapered step 

4) Outside tapered step 

5) The minimum value is illustrated as negative, since there is no overlap, but a distance. 

6) Not relevant 

7) Banister side of stair 

Definitions of geometry terms 

1) Going 

2) Rise. 

3) Overlap 

4) Opening between consecutive 

steps. 

5) Length of flight 

6) Thickness of steps 

7) Height of the railing/barrier 

8) Opening between balusters/wire


Table 6.4: Load bearing capacity at ultimate limit state 1) – Characteristic values of resistance Rk 

Part of stairs Type of loading Characteristic values of 

resistance 

γm 2) 

Flight Vertical variable uniformly distributed load q qR,k [kN/m 2 ] 9,96 1,1 

Step Vertical variable single load Q QR,k [kN] 3,39 1,1 

Handrail Horizontal line load qh qh,R,k [kN/m] 0,97 1,1 

1) Note. Proof of ultimate limit state is only given if the design value of the actions does not exceed the 

design value of the resistance Fd ≤ Rd 

with Fd = Fk × γF and Rd = Rk / γm 

Fk = characteristic values of actions (imposed loads acc. EN 1991-1-1) 

γF = 1,5 (recommended partial safety factor, in absence of other national regulations 

Rk and γm according to table 6.4 

2) From ETAG 008-5.1.1.1- steel - recommended in absence of other national regulations. 

Table 6.5: Load-bearing capacity at serviceability limit state 1) – Deflections under loading 

Deflection of the flight under service load (uniformly distributed load) 

Load FS p 6,25 [kN/m 2 ] 

Length of the median line of the flight L 2940 [mm] 

Deflection under service load related to the median line of the flight w L/200 [-] 

Deflection of the step under service load (point load) 

Load FS P 2,7 [kN] 

Length of the flight L 2940 [mm] 


1) Note. Proof of serviceability limit state is only given if the design value of the actions (imposed loads 

according to EN 1991-1-1) does not exceed the design value FS according to table 6.5 Fk ≤ FS 

Table 6.6: Load bearing capacity – Service loads 

Type of loading 

Capacity 

Vertical variable uniformly distributed load q q [kN/m 2 ] 6,0 

Vertical variable single load Q Q [kN] 2,1 

Service load = min(Rk/( γM× γF); FS) with RK, γF and γM according to table 6.4 and FS according to table 6.5 

The torsional force in the string resulting from a horizontal load on the barrier/handrail has to be calculated on a case by case basis 

depending on the prevailing national provisions for this type of stair kit.


Annex 7 Components, dimensions, geometry and characteristic values for space saving stair type Berlin 




Figure 7.1 – types of plan and walking line, type Berlin and the 12 step version Copenhagen





Figure 7.2 – types of plan and walking line, type Berlin and the 12 step version Copenhagen


Table 7.1: Components and materials - Berlin and the 12 step version Copenhagen 

Components of stair - Berlin Material Characteristic values (minimum values) 

E0 Gmean fm,k fv,k γM 1) 


[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [-] 

Steps Solid wood 2 10000 600 30 3 1,5 

Spruce C18 9000 560 18 2 1,5 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Centre String modules and 

banister. 

Steel 

(S235JRG2) 

210000 81000 235 360 1,1 

Bolts Steel S275 210000 81000 275 410 1,1 

Fixings NPD 


2) Only hardwood of the following species: beech, oak, common ash, merbau


Table 7.2: Minimum dimensions of essential components of stair - Berlin and the 12 step version Copenhagen 


Console 1) 2) Front thickness 5 mm 

Front Radius (outer) 50 mm 

Front Height 330 mm 

Back thickness 3 mm 

Back Radius (inner) 50 mm 

Back Height 142 mm 

Thickness (flange) 3 mm 

Width flange 207 mm 

Distance Front and back plate 129 mm 

Clamp plate 1 Thickness 12 mm 

Height 85 mm 

Width 45 mm 

Radius 3) 

65 mm 


Height 110 mm 

Width 53 mm 

Radius 3) 

65 mm 

Bolt EN 4017, class 8,8 M16x40 


Max horizontal hole distance 3) 184mm 



Diameter 200 mm 

Fastening screws NPD 

Shaped tread 3) Thickness 40 mm 

Wall fixings NPD 

Baluster Diameter 25 mm 

Wire filling Diameter 6 mm 

Handrail Diameter 40 mm 



3) At the side of compression


Table 7.3: Geometry - Berlin and the 12 step version Copenhagen 

Designation 

Dimension 


Going Tapered step 1) [mm] 0 251 2)4) 



[mm] 185 225 


[°] 54 60 

Overlap of the steps [mm] 0 6) 124 6) 


Openings Between barrier and other parts of the stair 6) [mm] - 6) - 6) 



Between balusters/wires [mm] - 6) - 6) 

Clear width of stairs [mm] - 6) 640 


Length of the flight [mm] 3180 






3) 


5) 




1) Going 

2) Rise. 

3) Overlap 


steps. 








resistance 

γm 2) 
























Capacity 







Annex 8 Components, dimensions, geometry and characteristic values for space saving stair type New York 

Straight flight of regular treads, only according to technical documentation of the stair and mounting instructions (column support, 


Figure 8.1 – types of plan and walking line, type New York 




Figure 8.2 – types of plan and walking line, type New York





Figure 8.2 – types of plan and walking line, type New York


Table 8.1: Components and materials – New York 

Components of stair – New York Material Characteristic values (minimum values) 

Components from glass based products 

Steps 2x8 mm hardened 

laminated glass 

E0 

[N/mm Manufactured according to: 

GB11614-1999 

2 ] [-] 

50000 1,5 

γM 1) 


Components from metal 

[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Console Aluminium 

EN AW 40 47 A 

71000 26500 159 324 1,1 

Bolts Steel S275 210000 81000 275 410 1,1 

Centre String adjustment modules 

and banister fittings 

Steel 

(S235JRG2) 

210000 81000 235 360 1,1 

Fixings NPD 

1) Recommended partial safety factor, in absence of other national regulations.


Table 8.2: Minimum dimensions of essential components of stair – New York 


Console 1) 2) Shell thickness 4,2 mm 

Height 185 mm 

Diameter of hole for adjustment element 103 mm 

Thickness (flange) 6,1 mm 

Height 185 mm 


Distance from front to back 356 mm 

Adjustment element Thickness 4 mm 

Height 193 mm 

Width 101 mm 

Diameter of tube 

93 mm 

Expansion rings Thickness 2,9 

Height 15 

Diameter 99,8 





Fixing column 108 x 3,5 


Outer dimensions 312,1 x 242,9 mm 

Fixing column 93 x 5 mm 

Maximum hole distance 116 mm 

Minimum hole distance 249 mm 










Table 8.3: Geometry – New York 

Designation 

Dimension 





[mm] 185 225 


[°] 40 51 

Overlap of the steps [mm] 85 85 


Openings Between barrier and other parts of the stair 6) [mm] 123 154 






Length of the flight [mm] 5372 8) 



Thickness of the handrail (Diameter) [mm] - 6) 1) Values in the one side of the asymmetric offset steps. 


3) 


5) 



8) Straight flight 

40 


1) Going 

2) Rise. 

3) Overlap 


steps. 








resistance 

γm 2) 
























Capacity 







Annex 9 Components, dimensions, geometry and characteristic values for space saving stair type Hamburg 



Figure 9.1 – types of plan and walking line, type Hamburg





Figure 9.2 – types of plan and walking line, type Hamburg 




Figure 9.3 – types of plan and walking line, type Hamburg


Table 9.1: Components and materials – Hamburg 

Components of stair - Hamburg Material Characteristic values (minimum values) 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [-] 

Steps Solid wood 2 10000 600 30 3 1,5 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Centre String modules and 

banister. 

Steel 

(S235JRG2) 

210000 81000 235 360 1,1 

Bolts Steel S275 210000 81000 275 410 1,1 

Fixings NPD 


2) Only hardwood of the following species: beech, oak, common ash, merbau


Table 9.2: Minimum dimensions of essential components of stair – Hamburg 


Console 1) 2) Front thickness 5 mm 

Front Radius (outer) 50 mm 

Front Height 330 mm 

Back thickness 3 mm 

Back Radius (inner) 50 mm 

Back Height 140 mm 

Thickness (flange) 3 mm 


Distance Front and back plate 194 mm 


Height 85 mm 

Width 45 mm 

Radius 3) 

65 mm 


Height 110 mm 

Width 53 mm 

Radius 3) 

65 mm 




Max vertical hole distance 3) mm 


Diameter 200 mm 


Shaped tread 3) Thickness 40 mm 









Table 9.3: Geometry – Hamburg 

Designation 

Dimension 


Going [mm] 193 257 2) 


[mm] 185 215 


[°] 44 49 















3) 


5) 




1) Going 

2) Rise. 

3) Overlap 


steps. 








resistance 

γm 2) 

















Load FS P 3 [kN] 







Capacity 







Annex 10 Components, dimensions, geometry and characteristic values for space saving stair type Rome 



Figure 10.1 – types of plan and walking line, type Rome





Figure 10.2 – types of plan and walking line, type Rome 




Figure 10.3 – types of plan and walking line, type Rome


Table 10.1: Components and materials - Rome 

Components of stair - Rome Material Characteristic values (minimum values) 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [-] 

Steps Plywood 2) 10000 600 30 3 1,5 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Center String modules and 

banister. 

Steel 

(S235JRG2) 

71000 26500 235 360 1,1 


Fixings NPD 



Table 10.2: Minimum dimensions of essential components of stair - Rome 















Width 200 mm 

Length 200 mm 





Length 6 mm 




4) EN ISO 4026


Table 10.3: Geometry – Rome 

Designation 

Dimension 





[mm] 185 230 


[°] 44 50 

Overlap of the steps [mm] - 5) 115 





Between balusters/wires [mm] 70 8) 80 8) 






Thickness of the handrail (Diameter) [mm] - 6) 1) Values in the one side of the asymmetric offset steps. 


3) 


40 






1) Going 

2) Rise. 

3) Overlap 


steps. 








resistance 

γm 2) 
























Capacity 







Annex 11 Components, dimensions, geometry and characteristic values for space saving stair type Basel 



Figure 11.1 – types of plan and walking line, type Basel





Figure 11.2 – types of plan and walking line, type Basel 




Figure 11.3 – types of plan and walking line, type Basel


Table 11.1: Components and materials - Basel 

Components of stair - Basel Material Characteristic values (minimum values) 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [-] 

Steps Plywood 2) 10000 600 30 3 1,5 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Center String modules and 

banister. 

Steel 

(S235JRG2) 

210000 81000 235 360 1,1 


Fixings NPD 



Table 11.2: Minimum dimensions of essential components of stair - Basel 















Width 200 mm 

Length 200 mm 





Length 6 mm 




4) EN ISO 4026


Table 11.3: Geometry – Basel 

Designation 

Dimension 





[mm] 185 230 


[°] 40 46 

Overlap of the steps [mm] - 5) 108 














3) 






1) Going 

2) Rise. 

3) Overlap 


steps. 








resistance 

γm 2) 
























Capacity 







Annex 12 Components, dimensions, geometry and characteristic values for space saving stair type COLUMNA 



Figure 13.1 – types of plan and walking line, type Columna





Figure 12.2 – types of plan and walking line, type Columna 




Figure 12.3 – types of plan and walking line, type Columna


Table 12.1: Components and materials – Columna 

Components of stair - Berlin Material Characteristic values (minimum values) 


Steps Plywood (beech 

multiplex) 


[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [-] 

10000 600 30 3 1,5 



[N/mm 2 ] [N/mm 2 ] [N/mm 2 ] [N/mm 2 ] 

Centre String modules Aluminium 71000 26500 159 324 1,1 

Adjustment element and banister Steel 

(S235JRG2) 

210000 81000 235 360 1,1 

Bolts Steel S275 210000 81000 275 410 1,1 

Fixings NPD 


Table 12.2: Minimum dimensions of essential components of stair – Columna 


Console 1) 2) Shell thickness 4,2 mm 

Height 185 mm 

Diameter of hole for adjustment element 103 mm 

Thickness (flange) 6,1 mm 

Height 185 mm 


Distance from front to back 356 mm 

Adjustment element Thickness 4 mm 

Height 193 mm 

Width 101 mm 

Diameter of tube 

93 mm 

Expansion rings Thickness 2,9 

Height 15 

Diameter 99,8 





Fixing column 108 x 3,5 


Outer dimensions 312,1 x 242,9 mm 

Fixing column 93 x 5 mm 

Maximum hole distance 116 mm 

Minimum hole distance 249 mm 




2) Drawings can be commissioned from the manufacture.


Table 12.3: Geometry – Columna 

Designation 

Dimension 


Going [mm] 180 220 2) 



[mm] 185 225 


[°] 40 51 



Openings Between barrier and other parts of the stair [mm] 123 154 




Clear width of stairs [mm] 700 8) 860 8) 





Thickness of the handrail (Diameter) [mm] - 6) 1) 


3) 

4) 

5) 


7) Banister side of staircase 


40 


1) Going 

2) Rise. 

3) Overlap 


steps. 








resistance 

γm 2) 

















Load FS P 5 [kN] 







Capacity

ETA 070193 Dolle Modular amend Final - ETA-Danmark

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