Straightening Jig for Crooked Lumber

October 2, 2020

A rip of plywood, some blocks and a table saw will help you repurpose cruddy lumber from the bone pile into backing

Framing lumber comes out of the factory bent because the factory is a forest. Cutting a straight line on a crooked board can be difficult and dangerous, so it is best to make a jig.

Find a scrap of sheet stock with a factory edge and rip it about 5 inches wide.

Fasten a backing block to the end, so you can screw a push board into it, forming the business end of the jig.

Spacer blocks are screwed into the straightedge at each end of the crooked wood.

A second block holds down the workpiece while you move it through the table saw.

—Matt Jackson, aka the Timber Tailor, is a master carpenter, Sketchup whiz, and video aficionado. Which is why he is also on the technical advisory team at ProTradeCraft