Strong-Wall® Wood Shearwalls: Two-Story Stacked-On Concrete Foundations

Strong-Wall Shearwalls

The same Strong-Wall® Wood Shearwall models used for standard applications on concrete may be used in stacked wall applications. See Product data tables below for models that may be used in this application.

Two-Story Stacked WSW Product Data — Upper Wall
Model No.	W(in.)	H(in.)	Total Wall Weight(lb.)
WSW18x9	18	105¼	185
WSW24x9	24	105¼	245
WSW18x10	18	117¼	205
WSW24x10	24	117¼	270
WSW18x11	18	129¼	220
WSW24x11	24	129¼	295
WSW18x12	18	141¼	240
WSW24x12	24	141¼	320

Order WSW-MSKXXKT separately for two-story stacked applications.
See product data table on page 10 for footnotes.
The width of the upper wall should match the width of the lower wall.

Multi-Story Connection Kit
Model No.	Contents
WSW-MSK18KT	(2) Holdowns with pre-attached bolts (2) Standard hex nuts and flat washers (1) LSL bearing block Installation instructions
WSW-MSK24KT

Two-Story Stacked WSW Product Data — Bottom Wall
Model No.	W(in.)	H(in.)	Anchor Bolts		Total Wall Weight(lb.)
Model No.	W(in.)	H(in.)	Qty.	Dia. (in.)	Total Wall Weight(lb.)
WSW18x8	18	93¼	2	⅞	165
WSW24x8	24	93¼	2	1	225
WSW18x9	18	105¼	2	⅞	185
WSW24x9	24	105¼	2	1	245
WSW18x10	18	117¼	2	⅞	205
WSW24x10	24	117¼	2	1	270
WSW18x11	18	129¼	2	⅞	220
WSW24x11	24	129¼	2	1	295
WSW18x12	18	141¼	2	⅞	240
WSW24x12	24	141¼	2	1	320

Installation:

All panels may be trimmed to a minimum of 74½". Trim height from top of panel only, do not trim from sides or bottom. Drilling holes in the Strong-Wall® Wood Shearwalls is not allowed except as shown here.
Anchor-bolt nuts should be snug tight.
Maximum shim thickness between the shearwall and the top plates or header is ⅞".
Walls may also be used in 2x6 wall framing. Install the panel flush to the outside face of the framing and add furring to the opposite side.
Standard top-of-wall connections install with nails.
The second-story panel must be the same width as the first-story panel.
When specifying the height of the second-story panels, add the total floor height, including sheathing, to the wall height, then subtract 2". See h₃ definition here.