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AhaBulb: Stuff Everyone Should Know · ahabulb.com/wood-check-square-diagonals

How can you check that a rectangular cabinet or frame is square?

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  1. Measure its two widths and compare them
  2. Measure both diagonals and see if they match
  3. Weigh each corner joint

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References

  1. Top 10 Tips for Accurate Woodworking (Woodcraft) www.woodcraft.com/blogs/learning-center/top-10-tips-for-accurate-woodworking Checked 2026-10-10.
  2. Top 10 Tips for Accurate Woodworking (Woodcraft) www.woodcraft.com/blogs/learning-center/top-10-tips-for-accurate-woodworking Checked 2026-10-10.
  3. Top 10 Tips for Accurate Woodworking (Woodcraft) www.woodcraft.com/blogs/learning-center/top-10-tips-for-accurate-woodworking Checked 2026-10-10.

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Trades & ShopWhy do many woodworkers lay out joinery with a marking knife instead of a pencil?Trades & ShopIn woodworking, what is a dado?Trades & ShopWhich joint is a two-sided recess cut along the edge or end of a board?

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