Flatness, Levelness, F-Numbers, Straightedge: What do the numbers mean? Recent changes to ACI 117 provide new procedures for straightedge measurements for floor slab flatness. Under the revised standard, 1/8 inch in 10 feet is not a standard option. Learn what each term means and how to specify floor slab tolerances in accordance with industry standards for each floor surface classification.
Visit our website at https://www.conspectusinc.com/publications.htm to view or download A4010-Floor Slab Flatness & Levelness 10.07.01.
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David Stutzman