Plywood Box Assembly Aid for Your Projects

Get a hand from an electrical box when building a plywood box.

Family Handyman

Quick Third Hand

I was assembling some plywood storage boxes and needed a third hand to hold the parts square while I screwed them together. I found an old 4-in. electrical box in the garage and decided to give it a try. The box was sturdy and perfectly square, and the clamps fit nicely inside to hold the assembly tight while I drilled pilot holes and drove screws. — Steve Rodgers

Try these 53 brilliant gluing tips and tricks for other assembly projects.

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