What is the staple length used along the flanged edge of 16x16 and 12x12 fiber board ceiling tiles?

• A. 9/16 inch
• B. 1/2 inch
• C. 5/8 inch
• D. 3/8 inch

Answer: (A)

Staple length is chosen to secure the edge without damaging the tile or failing to bite into the support. For these fiberboard ceiling tiles with a flanged edge, you want a length that will pass through the tile edge and into the framing enough to hold, but not so long that it pokes through or crushes the edge. A 9/16 inch leg length provides that balance: it’s long enough to grab into the underlying support after penetrating the tile edge, giving a secure hold, while staying within a safe depth for the tile and flange. Shorter lengths may not secure the edge well, and longer ones risk damage or protrusion.