Ceiling Joist Span Table

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Ceiling Joist Span Table

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Spans for ceiling joists shall be in accordance with Tables R802.4(1) and R802.4(2). For other grades and species and for other loading conditions, refer to the .
When the header joist span does not exceed 4 feet (1219 mm), the header joist may be a single member the same size as the ceiling joist or rafter.. Approved hangers shall be used for the header joist to trimmer joist connections when the header joist span exceeds 6 feet (1829 mm).
For example, the highlighted cell (below) shows that a 2" x 6" Southern Yellow Pine joist, with a grade of #2, and spaced 24" apart can have a maximum span of 10 feet – 0 inches (10-0), if you are designing your structure to support a plaster ceiling.
ceiling joist to be within the limitations the tables provided in this document.. Table 1 provides maximum clear spans for TJI® joists supporting “uninhabitable .
CEILING JOIST SPAN TABLE. ALLOWABLE SPANS IN FEET & INCHES. #2 Spruce-pine-fir (1.5 Modulus of Elasticity). (Roof slope not steeper than three units .
ALLOWABLE SPANS FOR JOISTS AND RAFTERS. 1, 7. Lumber Grade. FLOOR JOISTS. CEILING JOISTS 5. RAFTER-CEILING JOIST. COMBINATION.
This ceiling joist span table is based on the 2012 IRC for attics with limited storage. It covers common lumber species and sizes.
Ceiling joists are a critical element of a house's structure. They not only support the weight of the ceiling material, but also bear the outward pressure that is .

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