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  1. zink88

    Does Sistering Joist Short of Supports Increase Design Value in Bending & Load Capacity?

    Thanks for the confirmation. In order to support 60 lbs/sq ft live load and 20 lbs/sq ft dead load, table F4 in the same document (link below) appears to indicate that 2x10s spaced 16" on-center with span of 13'-4" require a modulus of elasticity of 1,300,000 and design bending value of 1167...
  2. zink88

    Does Sistering Joist Short of Supports Increase Design Value in Bending & Load Capacity?

    I will check out the link. If I am reading tables 9.1 and 9.2 correctly in the document I referenced, a 14’ span requires compression strength of 207 to handle a 40 lb/ sq ft live load and 10 lb / sq ft dead load with load bearing surface of 1.5 inches. Increasing the live load to 60 lbs / sq...
  3. zink88

    Does Sistering Joist Short of Supports Increase Design Value in Bending & Load Capacity?

    Is shear force the same as Compression Perpendicular to Grain referenced in Tables 9-1 & 9-2 in the Span Table for Joist and Rafters by the American Wood Council at the link below? https://www.awc.org/pdf/codes-standards/publications/span-tables/AWC-SpanTables2015-1505.pdf
  4. zink88

    Does Sistering Joist Short of Supports Increase Design Value in Bending & Load Capacity?

    I am in the middle of a bathroom renovation project. Original floor joists from 1994 home build are 2x10 stamped as SPF #2 with a 13'-5" span. I have sistered them with 12' 2x10s of SYP #2 stopping ~ 8" short of the supports at each end. The sistered joists have been attached using Great...

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