How big is a 2×4?

This is the first installment of a series that will explain common, but perhaps misleading, lumber industry jargon. This post will explain how common lumber “sizes” actually measure up.

All sizes are in inches

What it is called Actual Size
2×2 1 1/2″ x 1 1/2″
2×3 1 1/2″ x 2 1/2″
2×4 1 1/2″ x 3 1/2″
2×6 1 1/2″ x 5 1/2″