Instead of permanently mounting my 6-in. vise to a work-bench, I attached it to scrap plywood so I can clamp it wherever I need it. Stack two pieces of 3/4-in. plywood and screw them together with 1-1/4 in. drywall screws. Mark the vise-mounting holes on the plywood and drill 3/4-in. guide holes through both pieces. Recess the nut by drilling through the bottom sheet with a 1-in. spade bit using the 3/4-in. hole as a guide. Fasten the vise to the plywood with bolts sized to match the vise-mounting holes. If the bolt shafts are too long, cut them off with a hacksaw. — LuAnn Aiu. Plus: Learn how to use vise grips to pull nails.
Clamping up four mitered corners is tricky. You can buy specialty clamps for this, but I make my own. Here’s how to do it. Start with a long 1×4, as it’s easier (and safer) to clamp for making the angled cuts than a short piece. Mark out the blocks, and then drill a 1-in. diameter hole in the center of each one. The hole prevents the blocks from getting glued to your project. Cut 45-degree angles tangent to the hole, and then cut the blocks free from the long board. We’ll walk you through how to make one for your home shop.
There are a few things particleboard is NOT. It’s not medium density fiberboard (MDF)—a material with greater density and weight composed of more uniform particles. It’s NOT oriented strand board (OSB), a material composed of large wood chips and strands that’s structurally equivalent to plywood. It does NOT have great nail or screw holding ability, nor is it all that water resistant; water can quickly cause the material to swell and lose structural integrity. But if you need something flat and cheap for use in a dry place, particleboard will do you proud. Learn how to make a plastic laminate tabletop with a particleboard substrate.