Prepare your tool to cut the foam into the right size and shape following the measurement.

How to cut foam board curves. For best results, follow these steps for cutting curves and cutouts in thick foam board: This is a tip s. To cut curves, hold the knife perpendicular to the foam and use a short sawing motion.

With a small, sharp craft knife,. Be consistent and gentle in shaping or curving out the extra foam to make it. Your goal for the first pass is to lightly score the upper layer of.

Cutting curves can be challenging because the foam is more likely to. Also, whatever you decide to cut with should be held as horizontally as possible. Hot wire foam cutters are the fastest, cleanest and easiest tools to use to cut rigid polystyrene foams, like styrofoam, white beaded eps, and xps foams (blue and pink.

First, use your utility knife to score the insulated foam. Use a utility knife and straightedge to cut through thin board in several passes. Using a marker, draw your desired shape onto the thick foam board.

Straight cuts in rigid foam insulation board are easy with a razor knife. This is the best way to cut foam board insulation with a utility knife. Curves are harder, and can be messy if you use a saw to cut them.

There is a several pound weight attached to the. Cutting through both thin and thick foam board works best when the cuts are straight lines. Then, as near as possible, pass the utility knife.