Maximum Floor Joist Span Uk

Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability.

Maximum floor joist span uk. This chart is for basic reference only. Also available for the android os. Where the joists span over 2 5m strutting is required to prevent joists twisting when loaded. Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1.

This span table is to the format and methodology given in bs 5268 7 1. 2 grade of douglas fir are indicated below. Live load represents the weight of furniture snow etc. 1 ft 0 3048 m.

Dead load weight of structure and fixed loads 10 lbs ft 2. For example in the joist span table below the highlighted cell shows that 2 x 8 southern yellow pine joists that have a grade of 2 and are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2. Span calculator for wood joists and rafters also available for the android os. If you have any questions.

This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. Surveyors and structural engineers use data from tables below to help calculate the size of timbers necessary to give adequate support to timber floors. Floor joist span tables for surveyors floor construction. Dead load is the weight of the structure and any fixed items.

Maximum floor joist span for no. Our joist span charts are for wood joists with a maximum dead load of 10 pounds per square foot and a live load of 40 pounds per square foot. Engineered wood products ewp span and size charts for bci joists. 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.

For spans in excess of 4 5 m two rows of strutting will be required positioned at the one third and two third span positions. Live load is weight of furniture wind snow and more. Span tables for domestic floor joists to bs 5268 7 1 note. These spans were calculated using our floor joist calculation engine.

These tables can also be used to determine deck joist span. For spans of between 2 5 and 4 5 m one row of strutting is needed at the mid span position. True floor joist span calculations can only be made by a structural engineer or contractor.