In the example the joists have a spacing of 16 inches and a span of 11 feet 2 inches.
Floor joist load calculator uk.
Imposed loads of 0 75 kn m for maintenance and snow load are applicable where there is no permanent access no fixed ladder or staircase and most areas where the altitude does not exceed 100 metres refer to bs 6399 3.
Floor joist span calculator.
Suitable for uk building regulation approval.
Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span.
The lowest is a plain ceiling joist with no storage 10 pounds per square foot.
Select the on center spacing for the joists.
To use the joist span calculator below first select the species of lumber you will use for your construction project from the drop down list.
In this case your joists are adequate to support a 30 psf live load and 10 psf dead load.
Kn sq m the weight we place upon a floor by way of bathroom suites beds wardrobes etc is known as the imposed load.
Enter a specific joist size 2 dead load.
The joists must be able to support this dead load without sagging.
Span calculator for wood joists and rafters also available for the android os.
But larger is not always better when builders are constructing a home or adding a room addition.
This dead load is generally taken by architects and planners to be no more than 0 50 kilo newtons per square metre.
Imposed loads of 1 kn m for maintenance and snow load are applicable where there is no permanent access no fixed ladder or staircase and most areas where the altitude.
Domestic floor joist calculator.
There are six choices.
Calculations to bs 5268 2 2002.
The span table for a 30 psf live load 10psf dead load floor indicates a required fb value of 1 315 and a minimum e value of 1 800 000.
This a rough guideline.
The floor joist span tables are based on the loadings given in the amended version of bs 6399 1 which is an imposed load of either a uniformly distributed load of 1 5 kn m or a concentrated load of 1 4 kn.
Automatically calculate sizes suitable for supporting the loads below or.
Joists are to have minimum end bearing of 40mm.
This is how far apart they will be.
Live load psf dead load psf span calculator for wood joists and rafters available for the iphone.
However when running spf 2 6 floor joists into the floor joist calculator referenced above you get a maximum span of 9 feet 8 inches with a minimum bearing length of 3 inches at each end on 12 centers.
The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example.
