MEP-Technical Manual CDN 0408.qxd - Hambro

IMPERIAL
JOIST DEPTH SELECTION TABLES
Concrete: f’ c = 3 000 psi; density = 145 lb./ft. 3
Joist spacing = 4’-0”
Slab thickness = 6”
Residential Office Other Loading
Building Building (LL=100 psf)
Dead Load (psf) 91 91 91
Live Load (psf) 40 50 100
Total Load (psf) 131 141 191
SPAN c/c
12’-0”
14’-0”
16’-0”
18’-0”
20’-0”
22’-0”
24’-0”
26’-0”
28’-0”
30’-0”
32’-0”
34’-0”
36’-0”
38’-0”
40’-0” *
43’-0” *
MDH8 MDH8 MDH12
min = MDH8 min = MDH8 min = MDH8
MDH10 MDH12 MDH12
min = MDH8 min = MDH8 min = MDH8
MDH12 MDH12 MDH14
min = MDH8 min = MDH8 min = MDH8
MDH12 MDH14 MDH14
min = MDH8 min = MDH8 min = MDH8
MDH14 MDH14 MDH14
min = MDH8 min = MDH8 min = MDH8
MDH14 MDH14 MDH16
min = MDH10 min = MDH10 min = MDH10
MDH14 MDH16 MDH16
min = MDH10 min = MDH10 min = MDH10
MDH16 MDH16 MDH16
min = MDH12 min = MDH12 min = MDH12
MDH16 MDH16 MDH20
min = MDH12 min = MDH12 min = MDH12
MDH20 MDH20 MDH20
min = MDH12 min = MDH12 min = MDH12
MDH20 MDH22 MDH20
min = MDH14 min = MDH14 min = MDH14
MDH22 MDH22 MDH22
min = MDH14 min = MDH14 min = MDH14
MDH20 MDH20 MDH22
min = MDH16 min = MDH16 min = MDH16
MDH22 MDH22 MDH22
min = MDH16 min = MDH16 min = MDH16
MDH22 MDH22 MDH22
min = MDH18 min = MDH18 min = MDH18
MDH22 MDH22
min = MDH20 min = MDH20
* Permanent line of cross bridging shall be installed at mid-span.
MDHXXX
: Optimal MD2000 ® Series Joist Depth (in.)
min = MDHXXX : Minimum Depth (in.) Allowed
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