Issue link: http://alpine.uberflip.com/i/126813
INSTALLATION ERRORS FOR TOP MOUNT HANGERS Toe Nailed I-Joist Hanger Over-Spread on Glu-lam Header Do not toe nail wood I-joist to headers prior to installing hangers of any type. Toe nailing results in improper hanger installation resulting in gaps and a loose connection, and is a major cause of squeaks. Hanger Not Plumb Top flanges spread wider than the wood I-joist can raise the wood I-joist above the header. This condition can cause squeaky floors. A hanger cantilevered out from the header can also cause floor squeaking. ENGINEERED WOOD PRODUCT SIZES LVL and PSL W = 1¹³⁄₁₆" Laminated veneer lumber (LVL) is engineered with sheets of thin veneer structurally bonded together to make headers and beams which span much longer distances and support heavier loads than ordinary lumber. LVL headers and beams are available in the following sizes: W = 2³⁄₄" W = 3⁹⁄₁₆" W = 5³⁄₈" 1³⁄₄ x 7 2¹¹⁄₁₆ x 9¹⁄₂ 3¹⁄₂ x 3¹⁄₂ 5¹⁄₄ x 5¹⁄₄ W = 7¹⁄₈" 7x7 1³⁄₄ x 9¹⁄₄ 2¹¹⁄₁₆ x 11⁷⁄₈ 3¹⁄₂ x 5¹⁄₄ 5¹⁄₄ x 7 7 x 9¹⁄₄ 1³⁄₄ x 9¹⁄₂ 2¹¹⁄₁₆ x 14 3¹⁄₂ x 7 5¹⁄₄ x 9¹⁄₄ 7 x 11¹⁄₄ 1³⁄₄ x 11¹⁄₄ 3¹⁄₂ x 9¹⁄₂ 5¹⁄₄ x 11¹⁄₄ 7 x 14 1³⁄₄ x 11⁷⁄₈ 3¹⁄₂ x 11¹⁄₄ 5¹⁄₄ x 11⁷⁄₈ 7 x 16 1³⁄₄ x 12 Parallel strand lumber (PSL) is made from long, thin strands of wood structurally bonded together in a process to make large cross section beams and columns. PSL headers and beams are available in the following sizes: 3¹⁄₂ x 11⁷⁄₈ 5¹⁄₄ x 12 7 x 18 1³⁄₄ x 14 3¹⁄₂ x 12 5¹⁄₄ x 14 1³⁄₄ x 16 3¹⁄₂ x 14 5¹⁄₄ x 16 1³⁄₄ x 18 PSL columns and posts are available in the following sizes: 3¹⁄₂ x 16 5¹⁄₄ x 18 3¹⁄₂ x 18 SUPERSPEED DRIVE SCREW INSTALLATION FOR LVL Installation: SDS¹⁄₄X3 LVL is not required. SDS¹⁄₄X4¹⁄₂ 1 " Min 2" Min Do not overdrive screws. Design: LVL & PSL material Douglas Fir-Larch SUPERSPEED Drive Screws (Typical) 2" Min (G = 0.5) " minimum 6 inches. End distance minimum 4 inches. 1 " Min between plies. Built-up LVL/PSL capacity may be less. Check with manufacturers. 1 " 1 " 1 " due to side framing into main beam. 1 " 1 " 3 3 " SDS¹⁄₄X6 Max Allowable Loads (LBS per Linear ft.) Framing Combination 2 - 1³⁄₄" 3 - 1³⁄₄" 12" OC 16" OC 1450 1080 24" OC 725 2075 1555 1040 1900 1425 950 4 - 1³⁄₄" SUPERSPEED Drive Screws 2 - 3¹⁄₂" 1 - 3¹⁄₂" + 2 - 1³⁄₄" 2" Min " 1 " Min 1 " ITW BCG Hardware 1 " 1 " 1 " www.itwbcghardware.com - 800.521.9790 31