Angles & Straps

Floor-to-Floor Connection System

WSF-PW

Reference Series: SDWF-TUW
The floor-to-floor connection system, consists of two parts: the WSF Floor-to-Floor Screw and the PW3 Shrinkage Compensation Device. Used in combination, the system allows designers to resist uplift loads between floor levels, while compensating for up to 5/16" of wood shrinkage in the plate members over time.

Patent: Pending (PW3)
Materials: 1/4" diameter Grade 5 steel (WSF); Glass Fiber Reinforced Polamide (PW3)
Finish: Silver Corrosion Resistant Finish
Code Reports: View Code Report Table

Installation

  • Place the PW3 Puck Washer on the wall bottom plate. The PW3 Puck Washer should be centered on the plate.
  • Insert the screw through the hole in the PW3 Puck Washer and drill into the floor cavity. The WSF screw should be driven in vertically ± 5 degrees.
  • Engage the WSF screw into the double top plate of the wall below. Tighten the WSF screw, compressing the puck washer which releases the internal expansion device. DO NOT OVERDRIVE. Note: Minimum 3″ thread penetration into wall top plate required.
  • Before installation, the cover of the PW3 Puck Washer is raised about 1/8″. Compressing the puck washer triggers the release of the internal expansion device. In a quiet environment, you will hear an audible click when the expansion device releases. Installation is complete.

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Typical WSF-PW3 Floor-to-Floor Connection System Installation

Typical WSF-PW3 Floor-to-Floor Connection System Installation

Typical WSF-PW3 Floor-to-Floor Connection System InstallationWSF HeadWSF Floor-to-Floor ScrewPW3 Puck Washer