MAN Magazine Summer 2019




This guide outlines the

method for installing a

single level deck with

a timber frame and

horizontal deck board

positioning. Bear in

mind that other decking

designs will require

different techniques and

joist spacing...

Planning and Preparation

Start by deciding the location of your

deck, bearing in mind factors such

as sunlight and privacy. Try to avoid

heavily shaded areas as they will

require more maintenance, and avoid

damp areas completely.

Carefully plan your deck before

starting, as this will limit cutting and

wastage, and will help you to be

accurate when ordering the materials

that you need.

When designing the deck, remember

to factor in gaps of 5-8mm between

deck boards into your plans.

If you are going to build your decking

next to a house, make sure it’s 150mm

below the damp proof course and that

you don’t cover any air bricks.

Plan the deck to ensure the fall of

the frame is 1:100 and running away

from the house, this will aid water

run-off and will help to stop the deck

from becoming slippery. Bear in mind

this fall when checking the levels

throughout the build.

We would advise that you plan your

deck to fit only whole deck boards,

to avoid having to cut a deck board

lengthways to fill a gap.

Do it Right!

Always use structural treated timber

and screws designed specifically for

the job. This will ensure that the deck

is built to last.

Treat all cut surfaces with two coats of

preservative and drill holes.

When sawing, use the 90-degree

guide marker on your saw, or a set

square, to help you make accurate


When drilling, mark out all pilot holes

to ensure your fixings are as accurate

as possible.

Sand down ends of timber to remove


If you need to cut a board lengthways,

do it with either a handsaw or circular

saw, and place it at the area of least

through traffic. Then, lay your deck

boards from the opposite end.

It is possible to build a deck on your

own, but it is much easier with a spare

pair of hands, so ask a friend if they

can help out.

Staying Safe

Firmly secure the timber and take care

when sawing or drilling.

When drilling, it’s best to wear safety


Wear protective gloves when handling

the deck boards or applying wood


Always follow manufacturer’s

instructions for drying and safety

when using wood preserver.

Wear safety goggles and a dust mask

when using a jigsaw.

Wear a dust mask when sanding any

cut ends of wood.

Offcuts of treated timber should be

disposed of safely and shouldn’t be

burnt – a recycling centre should be

able to advise on the best method.

Bear in mind that joists can be heavy,

so take care or ask for assistance when

moving them.


Once the decking is complete, apply

a decking stain to further protect the

timber. These come in a variety of

colours so be sure to look at the range.

If you choose a shady spot, it’s best to

clean and treat the wood annually to

help preserve the timber.

To keep the deck clean, remove any

dirt or leaves with regular brushing.

Preparing the Area

Step 1 - An existing patio or concrete base

can be used as a solid foundation for your

deck. Start by measuring and marking out

your decking area.



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