KEY WORDSTile, Concrete, Flatness, Large format, ANSI, TCNA
© 2016 International Masonry Institute
Concrete floor flatness diagrams for ceramic tileDetail 06.130.0401 Rev. 3/1/16
1'-0"2'-0"
1/16"
10'-0"
1/8" 1/8"
10'-0"
1/4" 1/4"
Required plane
Required plane
10'-0"
10'-0"
2'-0" 1'-0"
1/16"
43
2
1
Concrete floor flatness for tile > 15 in. on one side1/14" in 10 ft., max.
Concrete floor flatness for tile < 15 in. on one side1/18" in 10 ft., max.
Concrete floor flatness for tile < 15 in. on one side1/16" in 1 ft., max.
Concrete floor flatness for tile > 15 in. on one side1/16" in 2 ft., max.
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