Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.
Wood beam size calculator freeware.
Young s modulus is set to a default value of 200 000 mpa or 29000 ksi for structural steel but can be edited by the user.
Click on the appropriate beam this will take you to the calculation table for your project.
Simple beam point load at midspan.
15 tr15 this calculator simplifies the calculation of sound transmission through wood frame floor and ceilings.
The column on the left of each chart labeled beam span represents the beam length with bearing required for your project.
Area of the cross section is specific to the beam section selected and is defaulted to the values.
Tables providing size selections for various beam spans and loading combinations for southern pine dimension lumber and southern pine glued laminated timber are available for the following applications.
Generate optimized cutting patterns based on the available stock sheets by nesting the required parts.
It has been my experience to never use a beam smaller than a two ply 2 x 8.
Rafter and ceiling joist forces.
Online panel cutting optimization software.
The beam calculator is a great tool to quickly validate forces in beams.
If there is are any questions about anything else then you should contact your supplier or an engineer.
Simple beam point load at any location.
Two point loads at one third points on a simple beam.
You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
The beam calculator uses these equations to generate bending moment shear force slope and defelction diagrams.
Steel i beam.
Combined axial and bending load calculator.
This calculator matches up with 90 of the applications in the 2012 international residential code book.
The properties of the beam and section are specified by typing directly into the input fields.
Another simple column calculator.
Length of beam is the total including all spans of the beam in mm or ft.
Most interior beams need to include the roof load.
Window door garage door headers supporting roof wall floor loads.
Uniformly loaded beam overhanging post calculator.
Size engineered wood and dimension lumber in one tool compare design results and select the most effective solution.
Determine the beam header span length and the span carried supported by the beam header.
Window door garage door headers supporting roof loads only.
Wood to wood wood to concrete and wood to steel connections are possible.
