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Cantilevered in. Line Joist System <br /> <br />AMERICAN PLYWOOD ASSOCIATION P.O. Box 11700 Tacoma, WA 98411 (206) 565.6600 <br /> <br />There are many good, solid reasons for using <br />the cantilevered in-line joist aystem for floors <br />built with center-suppor! construction. <br /> <br />The cantilever system, as shown In the sketch, is <br />structurally more efficient than conventional simple- <br />span joists, Stresses on the suspended Ioists are <br />reduced because the span is shorter than It would be <br />if the joist were to span from wall plate to center <br />support. Bending stresses in the overhanging joist are <br />also reduced due to the negative moment Induced by <br />the overhang. <br /> <br />This structural advantage sometimes permits use of <br />joists one size smaller than would be required in the <br />conventional system. Even when no reduction in joist <br />size Is possible, cantilevered joists and plywood are <br />stiffer than a system of simp/e-span joists. Jn addition, <br /> <br />In this system the joists are "In-line," rather than <br />offset and overlapped, This makes application of <br />plywood floor panels easier, and minimizes WaSte in <br />subfloor and joists, besides making panellzatton <br />easier. The system also provides a use for shorter <br />lumber lengths. <br /> <br />The cantilevered joist system is recognized by the <br />FHA, The concept is suggested as a means of <br />achieving economies In the NAHB Manual of Lumber <br />and Plywood Savings Techniques, Sections 2,4 and <br />2.7. Construction methods in the NAHB publication <br />are acknowledged by FHA as meeting their <br />requirements. <br /> <br />Band~ <br /> <br /> <br />