Structural Floor Loading Span Calculator

For sawn lumber you must perform mathematical calculations.

Structural floor loading span calculator. 1 psf lbf ft2 47 88 n m2. The sign convention used for loading is positive values shown. Span tables below illustrate common combinations of the multiple variables available. The calculator supports a variety of different loading types which can be applied in combination.

Understanding loads on beams. 2 grade of douglas fir are indicated below. Dead load psf span calculator for wood joists and rafters available for the iphone. Distributed loads are specified in units of force per unit length kn m or plf along the beam and can be applied between any two points.

Next use the buttons to select the supported length for the beam. To use the beam span calculator below first select the number of floors that the floor beam will be supporting from the drop down list. Span calculator for wood joists and rafters also available for the android os. Armed with this information you can determine the minimum size span or strength of the beam credit julio.

Engineered wood components are sized using span tables that match various spans to pounds per foot of beam. Determine the beam header span length and the span carried supported by the beam header. Geometry loading spacing bearing conditions etc. Loads are considered to be either distributed or point loads.

You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. In this case your joists are adequate to support a 30 psf live load and 10 psf dead load. Roof rafter framing of the residential structural design tutorial. Floor truss span chart each individual floor truss design is unique based on multiple variables.

There are two different types of loads. Use span tables for progressively heavier loads until you find the limits of your floor. Live load is weight of furniture wind snow and more. The load on an outside wall with clear span trusses is exactly half the load on each wall.

Maximum floor joist span for no. The column on the left of each chart labeled beam span represents the beam length with bearing required for your project. Each load can be named by the user. Click on the appropriate beam this will take you to the calculation table for your project.

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. Dead load weight of structure and fixed loads 10 lbs ft2. Its either going to an exterior or an interior load.