How to Cut Acoustical Tiles

Measure the length needed for each acoustical tile cut, using a tape measure. If the cuts are located between a full tile and a wall, measure from the full tile's edge to the wall. If creating a cut for a ceiling fixture, measure from the edge of the two adjacent full tiles to the fixture.

Transfer the measurements to an acoustical ceiling tile's face, using a pencil to make measurement marks on the tile. Draw the cut's outline on the acoustical tile's face, using the measurement marks as a placement guide and a framing square as a straightedge.

Score the pencil line on the acoustical tile, using a utility knife to cut through the design on the tile's face. If making straight cuts for the tiles around the ceiling's border, continue to run the utility knife across the scored line until the knife's blade cuts completely through the acoustical tile.

Cut the circle or angled cuts for the ceiling fixture, if needed. Position a fine-tooth drywall saw's blade on the scored line. Press the saw's blade through the tile. Make the cut in the acoustical tile on the saw's down stroke. Release the saw blade's pressure against the tile on the blade's upstroke. Cutting acoustical tile on the upstroke often chips the tile's surface.

Test fit each cut and trim as needed, using the fine-tooth saw to make the cut adjustments.