True floor joist span calculations can only be made by a structural engineer or contractor.
Triple joist timber floor.
Live load is weight of furniture wind snow and more.
1 ft 0 3048 m.
Single joist timber floors.
The floor consists of wooden joists also called bridging joists spaced 30 to 40 cm apart and supported on end walls.
1 psf lb f ft 2 47 88 n m 2.
Double joist timber beam.
The cost of recoating a timber floor is more affordable.
Dead load weight of structure and fixed loads 10 lbs ft 2.
There are a lot of styles colours and species of timber flooring available.
Basement ground floor of timber 1 auditorium dances and dramas.
Maximum floor joist span for no.
Double and triple joist hangers are wider to accommodate either a thicker piece of lumber or two or three joists placed side by side.
Double and triple joist hangers.
T ypes of floors 1.
Most floor joists consist of 2 by 6 inch lumber but they can use 2 by 8 or 2 by 10 as well which will require longer joist hangers.
With all joined timbers supported by fully nailed proprietary joist hangers.
In these cases the joist hangers will be 4.
2 grade of douglas fir are indicated below.
T imber flooring basement or ground floor of timber.
Framed triple joist timber floor.
Single joist timber beam.
This is the simplest type of timber floor used for residential buildings where spans are short or moderate say up to 4 m and loads are comparatively lighter.
Framed or triple joists timber floors.
This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction.
Around floor openings such as stairs it will be necessary to install larger or double triple timber trimmers bolted together to carry the floor joists see guide leaflet 6 for information.
Affordable timber floor finish may last for up to 8 years.
