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Hardwood and Plywood Bench Top?

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I am preparing to build a workbench and would like a properly thick top of hardwood. But I am hoping to save some money by cutting my hardwood into 1-1/2-in. strips, then gluing them together on-edge to a base of two 3/4-in. sheets of plywood, ending up with a 3-in.-thick top. My question is: Can I glue the hardwood to the plywood? Or do I have to treat the hardwood section like a tabletop and do something like screw it to the plywood through elongated holes to allow for wood movement? – Mike Garrett

Tim Inman: I’m all for extra-thick, heavy bench tops. I think I’ve mentioned in other answers that my own bench top is made from used bridge plank lumber. But your lamination idea, I think, will leave you frustrated in the end. To simplify and illustrate my thinking, this is like you’ve got both halves of the hamburger bun on one side of the hamburger. Not fatal, but not the textbook way, either. When using different materials in wood lamination glue-ups, usually the better idea is to balance the material with the idea of symmetry: each layer has a corresponding layer matching it later on. Wood moves, and you cannot stop it from happening. You can slow it down and you can equalize it, but you just simply cannot stop it using any practical way. Plywood is very dimensionally stable due to the alternating cross grain layup of the veneers. The plywood will be your most

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