This is a great tool for engineers, architects, and builders to design wood beams for strength in bending, shear, deflection, and bearing. Beam design is calculated by inputting a few design ...

DEAR TIM: I’m getting ready to build a large room addition that needs a beam to support the floor joists. I’ve been told that a wood beam will work, but I’ve always seen steel I-beams in other houses.

The Structural Wood Design Calculator is for the iPhone or iPod Touch. It is a tool for engineers, architects, and builders, as well as students to design wood beams for strength in bending, shear, ...