Calculators

Get the numbers right before you cut. This section gathers our free woodworking calculators for load and weight, lumber pricing, fasteners, and material coverage — so you can plan projects with confidence.

Weight & load: how much weight wood can hold, wood weight & load, plywood load capacity, and beam span.

Lumber & pricing: lumber price and linear-foot.

Fasteners: screw length, screw weight limit, and screw shear strength.

Coverage & movement: glue coverage and wood shrinkage.

For how each tool works and when to use it, see our woodworking calculators guide.

How much weight can a piece of wood hold? It depends on the species, dimensions, span, and support — our load calculators estimate safe capacity for common lumber sizes.

What screw length should I use? A good rule is a screw long enough to sink at least two-thirds of its length into the base material without punching through.