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TradeReady® Floor Joist Blocking

Quick and efficient system that prevents joist rotation and accommodates mechanical passing

TradeReady Floor Joist Blocking is one of the primary components that make up the TradeReady floor bracing system.

TradeReady Blocking features a large extruded hole to accommodate HVAC, mechanical, plumbing and sprinkler runs.

TradeReady Blocking is pre-cut and formed to fit securely between the floor joists to prevent joist rotation. Pre-punched holes in the connection legs are added for quick attachment to each floor joist. Structural blocking is an economical alternative to TradeReady Structural Bridging (TDSB) or Flat Strapping.

  • Pre-cut to fit 12", 16", or 24" joist spacing
  • Thickness: 54mils (16ga)
  • Pre-punched holes for quick attachment to floor joists
  • Available in 7-1/4”, 8”, 9-1/4”, 10”, 11-1/4”, 12" and 14” deep members
  • Extruded hole sizes range based on member depth:
    • 4-1/2” x 7” hole for 7-1/4” and 8” blocking systems
    • 6-1/2” x 9” hole for 9-1/4”, 10”, 11-1/4”,12" and 14” blocking systems

Floor Joist Blocking is typically used in conjunction with a continuous row of TradeReady Structural Bridging (TDSB) that ties the floor system to the structure allowing bracing against lateral movement.

Alternative Products:

Contact ClarkDietrich Technical Services at 888-437-3244 for any questions about ClarkDietrich's TradeReady® products.


Place the notched end of the TradeReady Blocking inside the open side of one floor joist. Attached each end of the TradeReady Blocking to each floor joist with (2) #10-16 screws in pre-punched holes.

Code Approvals & Performance Standards

  • ASTM A653 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
  • ASTM A1003 Standard Specification for Steel Sheet, Carbon, Metallic- and Nonmetallic-Coated for Cold-Formed Framing Members
  • IRC R505.3 Complies with International Residential Code, for solid blocking in steel floor joist systems
  • SDS For ASTM A1003 Steel Framing Products For Interior Framing, Exterior Framing and Clips/Accessories

PRoduct submittal SHeets

Click the below Product Code to view Submittal/Tech Datasheet.

Product Code Joist Size Description
725JB 7-1/4" TradeReady® Floor Joist Blocking
800JB 8"
925JB 9-1/4"
1000JB 10"
1125JB 11-1/4"
1200JB 12"
1400JB 14"

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