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WBP Wood Bearing Plate

WBP

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ATS Run Starts

This product's information may differ depending on the category of use. You are currently viewing details related to ATS Run Starts. You can also view product information related to the category: URS Run Starts

The WBP wood-beam plate is for projects where the rod run attaches to wood beams. The center hole of the bearing plate has internal threads to receive the threaded rod from above, and the plate spreads the load across the underside of the wood beam. Two SDS Heavy-Duty Connector screws (provided with the kit) are to be installed through the WBP fastener holes and into the wood beam to support the self-weight of the bearing plate and rod above. This eliminates the need for an additional smaller bearing plate and nut on the top side of the beam. This unique connection also provides a fixed point at the very bottom of the rod run, allowing the take-up devices above to address shrinkage of all the wood framing including any from the wood beam itself. The heavy hex nut provided with the WBP is required to fully engage the tensile capacity of the rod above.

Material

  • ASTM A36

Finish

  • Gray primer

Related Literature

Load Tables

WBP Models
Model No. Plate Dimensions Compatible Rod Diameter (in.)1,3 SDS Screw Length (in.)2 Allowable Bearing Loads (lb.)1,4,5
L (in.) W (in.) T (in.) DHole (in.) DF SP HF SPF SCL5
WBP4-3X3.5 3 1/2 3 1/2 1/2 1/2 3 6,885 6,225 4,460 4,680 8,260
WBP5-3X3.5 3 1/2 3 1/2 5/8 5/8 3 6,775 6,125 4,390 4,605 8,130
WBP6-3X5.5 5 1/2 3 1/2 3/4 3/4 3 9,955 9,375 6,750 7,085 11,100
WBP7-3X8.5 8 1/2 3 7/8 7/8 7/8 4 1/2 15,245 13,785 9,880 10,370 17,335
WBP8-3X12 12 3 1 1/4 1 1 4 1/2 21,665 19,585 14,040 14,730 23,975
WPB8-3X15 15 3 1 5/8 1 1 4 1/2 27,290 24,670 17,685 18,555 30,375
WBP9-5X8.5 8 1/2 5 7/8 1 1/8 1 1/8 4 1/2 25,565 23,110 16,565 17,385 30,480
WBP9-5X12 12 5 1 1/4 1 1/8 1 1/8 4 1/2 36,505 33,000 23,655 24,820 41,140
WBP10-5X12 12 5 1 1/4 1 1/4 1 1/4 4 1/2 36,325 32,840 23,540 24,700 41,630
  1. No further increase in allowable load is permitted. For installation, thread rod through WBP plate, then thread the provided heavy hex nut to the threaded rod. Table loads are based on the rod threading through the plate and attaching to the heavy hex nut with a recommended one thread showing past the heavy hex nut. Heavy hex nut to be snug tight.
  2. SDS screws are needed to fasten the rod and WBP assembly to the wood beam (SDS screws provided).
  3. Center hole, Dhole, is a UNC-2B tapped hole.
  4. In accordance with the 2018 NDS, the following perpendicular to grain design variables were used to calculate allowable bearing loads: DF = 625 psi, SP = 565 psi, HF = 405 psi and SPF = 425 psi.
  5. For structural composite lumber (SCL), manufacturers’ specifications were referenced and a minimum design value adjustment factor (Fc⊥) of 750 psi was used. For Fc⊥ values when specifiying SCL other than this, a linear adjustment may be applied. Designer to account for drilled hole in beam where occurs.

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT