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Wood Strong-Wall® Shearwalls: Garage Portal Systems on Concrete Foundations

Garage Portal systems provide increased lateral resistance over site-built shearwalls in locations where space is at a premium. Portal walls shall be installed with a minimum 12" nominal deep header for adequate shear nailing. Because the portal walls and header are tested as a system, the resulting portal frame offers superior engineered performance over site-built walls.

See installation information and Structural Details.

059a-2014
059b-2014
Note for garage portal walls

Cripple walls over the garage header by Designer

Foundation Design (size and reinforcement) by Designer

U.S. Patents 6,006,487; 6,109,850; 6,327,831; and 6,643,986

Details

Detail 1 – Single- and Double-Wall Garage Portal

061a-2014
  1. Beam to support post and support post to foundation uplift connectors may be reduced where justified by calculations.
  2. This detail reflects lateral load requirements of a Single- and Double-Wall Portal system. It is the Designer’s responsibility to provide a complete load path for all loads in accordance with the governing codes.
  3. System rating equals the sum of the Singleand Double-Wall Portal values.
  4. Alternate Installation: A single-piece header (no camber) may be substituted for the two headers shown. The design rating for this condition may then be evaluated as the sum of the individual single-wall ratings.
  5. Longer header spans can be accommodated if larger headers are used such that equivalent stiffness is equal to or greater than that provided by the minimum header and maximum length indicated.
  6. Simpson Strong-Tie® LTP4 and LSTA24 (by Designer) are minimum requirements to achieve the allowable loads.

Detail 2 – Single-Wall Garage Portal

061b-2014
  1. Beam to support post and support post to foundation uplift connectors may be reduced where justified by calculations.
  2. This detail reflects lateral load requirements of a Single-Wall Portal system. It is the Designer’s responsibility to provide a complete load path for all loads in accordance with the governing codes.
  3. Longer header spans can be accommodated if larger headers are used such that equivalent stiffness is equal to or greater than that provided by the minimum header and maximum length indicated.
  4. Simpson Strong-Tie® STHD10 and LSTA24 (by Designer) are minimum requirements to achieve the allowable loads.
Garage Portal Wall Product Data
Model No. W (in.) H (in.) T (in.) Number of Fasteners in Top of Wall Mudsill Anchors1 Holdown Anchor Bolts
Qty. Dia. (in.) Qty. Model2,3
SW16x7x4 16 78 4 8-SDS 1/4"x6" 2 5/8 2 PAB7
SW16x7x6 16 78 5 3/4 8-SDS 1/4"x6" 2 5/8 2 PAB7
SW16x8x4 16 90 4 8-SDS 1/4"x6" 2 5/8 2 PAB7
SW16x8x6 16 90 5 3/4 8-SDS 1/4"x6" 2 5/8 2 PAB7
SW22x7x4 22 78 4 10-SDS 1/4"x6" 2 5/8 2 PAB7
SW22x7x6 22 78 5 3/4 10-SDS 1/4"x6" 2 5/8 2 PAB7
SW22x8x4 22 90 4 10-SDS 1/4"x6" 2 5/8 2 PAB7
SW22x8x6 22 90 5 3/4 10-SDS 1/4"x6" 2 5/8 2 PAB7
  1. Recommended minimum 5/8"x12" mudsill anchor.
  2. PAB7 available in multiple lengths. See anchor bolt information and anchorage solutions.
  3. SSTB28 anchor bolts may be specified when the anchor tension force does not exceed allowable anchor tension. See SSTB anchor bolt information and anchorage solutions.

Product Information

Naming Legend

059a-2014-1

Load Tables

Codes

Catalog Page