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 Tension Bracing (CDTB) or Diagonal Tension Strapping.

  • Pre-cut to fit 12", 16", or 24" joist spacing
  • 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.

Product Data & Ordering Information

Thickness: 54mils (16a)
Yield Strength: 50ksi
Coating: G90
Packaging: 10 pieces per carton

Click the below Product Code to view Submittal Datasheet

Product Code Joist Size Hole Size
725JB 7-1/4" 4-1/2" x 7"
800JB 8" 4-1/2" x 7"
925JB 9-1/4" 6-1/2" x 9"
1000JB 10" 6-1/2" x 9"
1125JB 11-1/4" 6-1/2" x 9"
1200JB 12" 6-1/2" x 9"
1400JB 14" 6-1/2" x 9"


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.

ASTM & Code Standards:

  • Sheet steel meets or exceeds mechanical and chemical requirements of ASTM A1003
  • TradeReady Floor Joist Blocking complies with International Residential Code (Section R505.3), for solid blocking in steel floor joist systems.

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