For metal decking totaling 9,100 square feet, how many SFRM thickness tests are required?

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Multiple Choice

For metal decking totaling 9,100 square feet, how many SFRM thickness tests are required?

Thickness testing for SFRM is typically done at a rate of one thickness test for every 1,000 square feet of sprayed area, or any portion of that area. This ensures sampling across the whole installation to catch any thin spots. For 9,100 square feet, 9,100 divided by 1,000 equals 9.1. Since you can’t do a partial test, you round up to the next whole number, which is 10 tests. The leftover portion (even as small as 100 square feet) requires its own test to verify thickness across the entire area.

Thickness testing for SFRM is typically done at a rate of one thickness test for every 1,000 square feet of sprayed area, or any portion of that area. This ensures sampling across the whole installation to catch any thin spots.

For 9,100 square feet, 9,100 divided by 1,000 equals 9.1. Since you can’t do a partial test, you round up to the next whole number, which is 10 tests. The leftover portion (even as small as 100 square feet) requires its own test to verify thickness across the entire area.

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