Span Calculator

[Jerry Bruette]

Does anyone know of a online span calculator for SYP treated lumber? Something that's easy to use and understand.

[Jim Koepke]

Does anyone know of a online span calculator for SYP treated lumber? Something that's easy to use and understand.

Typing > lumber span calculator < into Google brings a lot of possibilities. Qualifiers such as > SYP treated lumber < can be added.

It depends on the kind of span calculation you are seeking. An old simple rule of thumb for a span like a header made of laminated 2X4s is one 2X4 per foot. In other words, if the header will have a four foot span, laminate four 2X4s to make the header.

jtk