Large-diameter PVC pipe comes in handy for shop projects, especially dust collection systems. But cutting the end square enough to make a tight-fitting joint can be a challenge.
This simple plywood PVC pipe cutting guide supports the pipe and gives your saw a straight reference surface to follow.
Make the PVC Pipe Cutting Guide
Start with two plywood blocks. Each block is made by gluing together two layers of plywood to create a thicker, more stable support.
Using a drill press and wing cutter, cut a hole through each block that's the same diameter as the PVC pipe. You can also rough out the opening with a jigsaw, then file and sand it until the pipe fits.
Make two blocks. One supports the far end of the pipe while the other serves as the cutting guide.
Clamp the Pipe Securely
Cut a slot through the guide block. This allows the block to close slightly around the pipe when it's clamped to the workbench, giving you a firm grip on the PVC while you make the cut.
Use the Block to Guide the Saw
With the pipe securely clamped, cut it with a hacksaw, keeping the blade against the face of the plywood guide. The block helps keep the blade perpendicular to the pipe so the end comes out square.
A Japanese ryoba saw works well, too. Its blade can ride against the guide block while leaving a smooth cut in the PVC.
Woodsmith Tip: Make a Set. If you regularly use different sizes of PVC pipe around the shop, make several guide blocks sized for the diameters you use most often. The same basic setup can then handle everything from shop fixtures to dust collection piping.
Build Better Jigs & Fixtures
A simple guide like this can make an awkward job faster, easier, and more accurate. We’ve compiled some of our best shop-made jigs and fixtures for the table saw, router, drill press, bandsaw, and more — all designed to help you work more efficiently and get better results.
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