Drop Ceiling Calculator
Enter room size and tile size to get ceiling tiles, wall angle, and a main-tee estimate for a suspended ceiling.
Ceiling
For a suspended (drop) ceiling grid. Wall angle runs the room perimeter.
You'll need
Add 4-ft and 2-ft cross tees to fill the grid, plus hanger wire every 4 ft. Order a few extra tiles for cuts.
How to estimate a drop ceiling
Divide the ceiling area by the tile size for tile count, run wall angle around the perimeter, and lay out main tees every 4 ft with cross tees filling the grid. Add hanger wire and a few spare tiles.
Capture ceiling dimensions from a scan
ProBuildCalc turns your iPhone's LiDAR scanner into a job-site measuring kit — walk the space and it captures the square footage, material takeoff, and a blueprint automatically. No tape measure, no graph paper.
Drop ceiling FAQ
- How many ceiling tiles do I need?
- Divide the ceiling area by the tile size — 8 sq ft for a 2×4 tile or 4 sq ft for a 2×2. A 12×16 ft room is 192 sq ft, or 24 of the 2×4 tiles. Add a few extra for cuts at the walls.
- How much wall angle do I need?
- Wall angle (the L-shaped molding) runs the full perimeter of the room — 2 × (length + width). It comes in 10 or 12-foot lengths.
- What grid pieces does a drop ceiling need?
- A suspended grid uses main tees (usually 12 ft, run every 4 ft), 4-ft cross tees, and 2-ft cross tees for a 2×2 layout, all hung from wire about every 4 feet.
- What size tile should I use?
- 2×4 tiles cover faster with fewer pieces and suit larger commercial rooms; 2×2 tiles look more finished and are common in offices and homes. Both use the same grid system.
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See also: estimating guides · ProBuildCalc by trade