Simpson Strong-Tie SSW21-2KT Strong-Wall Steel Two-Story Stacked-Wall Connection Kit for High Load Multi-Story Applications
Simpson Strong-Tie SSW21-2KT Description
The Steel Strong-Wall Two-Story Stacked-Wall Connection Kit is designed for high load multi-story applications, providing reliable structural support and ease of installation.
Simpson Strong-Tie SSW21-2KT Includes
- (1) Shear-Transfer Plate with #14 Self-Drilling Screws
- (2) 1″ x 48″ Threaded Rods F1554 Grade 36
- (6) Heavy Hex Nuts
- Installation Instructions
Simpson Strong-Tie SSW21-2KT Features
- Some of the highest loads in the industry, and design procedures that account for cumulative overturning
- No bearing plates to install; walls can be placed flush against a corner
- Compression loads transferred by nut and rod, reducing wood crushing under load
Simpson Strong-Tie SSW21-2KT Applications
- Two-Story Stacked on Concrete Foundation
Simpson Strong-Tie SSW21-2KT Installation Overview
- Drill or notch subfloor to allow compression nuts to sit flush with underside of Steel Strong-Wall (SSW)
- Drill holes in first-story top plates to allow threaded rod to pass through
- Install threaded rods and nuts in lower Steel Strong-Wall
- Extend threaded rod through lower wall and floor system into upper wall
- Install solid blocking under center and each end of SSW per designer
- Place SSW over threaded rod and secure with anchor nuts included in SSW kit
- Attach shear transfer plate to upper SSW with supplied #14 self-drilling screws, and to rim joist with 0.148″ x 3″ nails
- Complete assembly with A34 angles (sold separately) per designer
- Attach SSW to top plates or header with Strong-Drive SDS screws (supplied)
Simpson Strong-Tie SSW21-2KT Specifications
| Application | Two-Story Stacked on Concrete Foundation |
| API Approval | Approved – Full |
| Wall Width (in.) | 21 |
NOTE: Two heavy hex nuts included with each wall.
