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.
Triple joist timber floor.
In these cases the joist hangers will be 4.
Timber floor composite floor 3.
T imber flooring basement or ground floor of timber.
Live load is weight of furniture wind snow and more.
Framed triple joist timber floor.
Framed or triple joists timber floors.
There are a lot of styles colours and species of timber flooring available.
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.
Double joist timber beam.
Single joist timber beam.
Double and triple joist hangers.
T ypes of floors 1.
Ce 200 details of construction.
True floor joist span calculations can only be made by a structural engineer or contractor.
Dead load weight of structure and fixed loads 10 lbs ft 2.
2 grade of douglas fir are indicated below.
The cost of recoating a timber floor is more affordable.
Affordable timber floor finish may last for up to 8 years.
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.
Timber is natural hard wearing and when maintained and kept clean it avoids carrying dust and allergens which promote asthma and other respiratory.
1 ft 0 3048 m.
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.
With all joined timbers supported by fully nailed proprietary joist hangers.
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.
Maximum floor joist span for no.