iLevel by Weyerhaeuser iLevel Shear Brace is a pre-built engineered panel that provides lateral bracing to help homes resist high winds and earthquakes. Workers can use Shear Brace in multistory applications and to build stable, narrow walls quickly in homes with many window and door openings, the company says. It comes in two widths and various stock and custom heights that can be trimmed in the field. 888.453.8358.