Floor Load Width Deck Calculator

If there s wall board covered ceiling suspended from the underside of that floor the dead load increases to about 10 pounds per square foot.

Floor load width deck calculator.

Building codes for residential decks only require 40 psf. But a single span of 3800 with a flw of 2400 and joist spacings at 450 no roof loads you could get away with 1 x 240x45 f27 kiln dried hardwood. Imagine yourself sitting on a wooden porch on a warm sunny sunday morning. The decking calculator can help you determine the number of decking boards and fasteners needed.

Span calculator for wood joists and rafters also available for the android os. It is also a tool for estimating the cost to build a deck mainly focusing on deck flooring. It then determines the total load from each tributary area based on the design load of your deck. The total load for each tributary area is then divided by the area of each footing in order to determine the load psf imposed on the soil.

The image and text below is a simple guide to the concept of floor load width. The species of lumber size of lumber and the load it carries. The angle of your decking 90 to the joist giving a horizontal straight across look 45 to the joist giving a diagonal slanted look to your floor boards. From here you should be able to determine your deck surface area length x width.

Then use a long tape measure to determine the total length and width of your deck enter into calculator. The dead load on a floor is determined by the materials used in the floor s construction. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Sipping tea reading a book and taking in those sweet summer smells.

This calculator determines the size of each tributary area of your deck. Beam span maximums are based on a maximum anticipated live load. To correctly calculate the minimum strength and placement of the timber that you should use on your deck you need to first establish the floor load width of your bearers and then the spacing of your posts. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

Also available for the android os. To calculate your bearer size accurately flw needs to be taken into account as well as the live load of thr floor. Fewer posts on upper level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans. Length x width in feet and inches total length of your deck s perimeter board size.