Although these two materials are somewhat different, I’ve gone for a twofer because both are used for what we call sacrificial workbench tops. They are relatively low-cost (MDF is normally cheaper) and are available as 8×4 sheets from hardware stores. Maximum thickness is usually ¾ inch, and that’s what I get. Cut the sheet to the size you need and simply screw it to your bench. When it gets too beat up, just replace the old sheet with a new one.
I prefer plywood, which is made from thin sheets (veneers) of wood glued together in layers, with each one at a 90 degree angle to the last. This offers a lot of strength and stability. Plywood splinters are surprisingly painful, so be careful when you lift a board, and be sure to sand the edges of the worktop thoroughly once in place. MDF is made from wood particles and resin glue compressed together. It’s easy to work with, doesn’t produce splinters, and stays flat, but is very dusty when you cut it. Personally, I prefer not to use it, but it is the most budget-friendly way to produce a stable workbench top.
HDPE (High Density Polyethylene)
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