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Corner Sanding Block

By: Woodsmith Readers
Depending on the shape and size of a workpiece, creating rounded corners can be a challenge. I came up with the sanding block you see here for just that.

Depending on the shape and size of a workpiece, creating rounded corners can be a challenge. The band saw works great to remove most of the waste, but somebody has to clean up those blade marks. I came up with the sanding block you see here for just that.

It’s two pieces of plywood: one large one that keeps the sanding edge square to the corner and one that’s half its size that does the sanding. I just face glued these, but before doing that I cut a groove in the larger piece in front of where the smaller one would sit (inset photo).

using diy corner sanding block being used on workpiece edgecorner sanding block

This lets the sandpaper extend across the entire edge, plus it provides some dust relief while you’re sanding. To use the block, just cut a piece of adhesive-backed sandpaper to fit on the edge, sand, and replace the paper as needed. -Mike Stuart New Brighton, Minnesota

Published: Aug. 11, 2026
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Topics: finishing tools, quick shop tips, woodsmith 272, woodworking sanding & abrasives

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