How Deep is that Dado?

Helene Lesel taught us an ingenious way to check the width and depth of dadoes and rabbets, as well as a hole or notch on furniture

dado depth guide

Helene Lesel taught us an ingenious way to check the width and depth of dadoes and rabbets, as well as a hole or notch on furniture you’re repairing or building. To measure the width, stand drill bits in the slot. When one fits snugly, check the drill bit’s diameter for the exact width. To measure depth, lay bits lengthwise in the slot and hold a straightedge across the slot. When the straightedge lies flat on the wood and just touches the bit, the bit’s diameter tells you the exact depth of the dado.

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Here’s another dado trick from one of our readers.