Recently in Design Considerations Category

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 http://www.conspectusinc.com/publications.htm to view or download A1030-Floor Slab Flatness & Levelness 10.07.01.

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Here is an excellent resource article for architects and specifiers that explains the IBC 2009 code requirements for fire extinguishers - how to select, how to locate, and how many are required. Thanks to CSI for posting this thorough document.