Plexiglass looks like it should cut like wood and behaves nothing like it. The first time most DIYers run a sheet through a standard 24-tooth framing blade, they get chipped edges, melted plastic ridges welded to the kerf, or a cracked sheet that splits halfway through the cut. So can you cut plexiglass with a table saw at all? Yes, and it is actually the cleanest method available when set up correctly. The trick is matching the blade, feed rate, and support setup to the material rather than treating acrylic like a thick piece of plywood.
Understand the Two Types of Plexiglass
Cell-cast acrylic and extruded acrylic look identical but behave differently on a saw. Cell-cast (sold under brand names like Plexiglas G and Acrylite GP) is harder, more brittle, and machines more like glass. Extruded acrylic (Acrylite FF, Optix from Plaskolite) is softer, gummier under heat, and prone to melting and re-welding to the blade. Cell-cast is the easier of the two to table-saw, but both work with the right blade. Check the protective film on the sheet for the brand stamp before cutting.
The Blade Choice That Matters Most
A high tooth count, triple-chip grind (TCG) carbide blade is the only correct choice. The Freud LU94M010 ($75 at Woodworkers Supply) is purpose-built for acrylic and laminates with 80 teeth on a 10 in plate. The Forrest Duraline HI-AT ($150) is the higher-end pick. Avoid 24-tooth framing blades and even 60-tooth crosscut blades; they grab and chip the edge. The triple-chip geometry shaves the material rather than tearing it, which gives you a polished edge that often needs no further finishing.
If you do not want to buy a dedicated blade, a fine-tooth Diablo D1080X 80-tooth crosscut ($45) is the next-best option and works on cell-cast sheets up to 1/4 in thick.
Set the Blade Height Correctly
Raise the blade so the gullets just clear the top of the material by about 1/4 in. Too high and the teeth attack the sheet at a steep angle that chips the top surface. Too low and the blade dwells in the kerf longer, heating up the acrylic enough to melt it and weld it back together behind the blade. The 1/4 in clearance gives the chip a place to evacuate without exposing more tooth than necessary.
Feed Rate and Push Technique
Feed steadily and a bit slower than you would for hardwood. Rushing the cut causes the blade to skip and chip the edge; going too slow lets the friction melt the plastic. A 1/4 in cast acrylic sheet should pass a 10 in blade at about 4 to 6 ft per minute. Use a push stick or push block on every cut, even on a wide sheet, because plexiglass is slippery and can grab the blade if it lifts unexpectedly.
Leave the protective film on both sides of the sheet during the cut. The film prevents chipping at the cut line and gives a clean visual reference to follow.
Support and Prevent Cracking
Large sheets crack when they are unsupported at the back side of the saw. Add an outfeed table or have a helper catch the sheet as it clears the blade. Never let the cut piece tip downward off the back of the saw, since the unsupported weight can snap the kerf closed and bind the blade. For sheets over 24 x 36 in, a roller stand like the Bora Portamate ($60) on the outfeed side prevents most binding problems.
Cooling and Chip Removal
Heat is the enemy. A mist of soapy water from a spray bottle applied to the cut line before each pass reduces friction and prevents melting on extruded sheets. Some users tape a small water-drip setup near the blade for long rip cuts. Compressed air to clear chips works for short cuts. Always wear safety glasses; acrylic chips are sharper than wood chips and travel further.
Dust collection helps even more here than for wood. Hook the saw to a shop vac with a HEPA filter, since acrylic dust is fine and irritates lungs.
Polishing the Cut Edge
A clean TCG blade cut leaves a satin edge that already looks finished. For a glass-clear edge, work through 220, 400, and 600 grit wet sandpaper followed by a buff with a cotton wheel and white polishing compound. Total time is about 10 minutes per linear foot. For functional cuts where edge appearance does not matter (a workshop sneeze guard or an enclosure panel), skip polishing entirely.
A flame polish using a small propane torch held 4 to 6 in from the edge works on cast acrylic but ruins extruded sheets, which bubble and discolor. Test on a scrap first.
Safety Notes and When to Use Another Tool
Wear safety glasses, hearing protection, and a respirator rated for fine dust. Keep the splitter or riving knife installed; kickback on acrylic is rare but serious because the material does not absorb energy like wood. For sheets thicker than 3/8 in, consider a vertical panel saw or a track saw with a 48-tooth plywood blade running slow, which gives more control on heavy material. For curved cuts, a band saw with a 10-TPI blade beats any table saw.
Final Settings Cheat Sheet
For most home shop cuts on 1/8 in to 1/4 in plexiglass, use an 80-tooth TCG blade, blade height set 1/4 in above the sheet, feed rate around 5 ft per minute, protective film left on, and water mist for extruded material. With those settings dialed in, the answer to can you cut plexiglass with a table saw shifts from a hesitant maybe to a confident yes, with cuts that come off the saw essentially finished.
