Quick and easy to install, the Iberville® BCBK-01 adjustable support bracket eliminates the need to build extra supports on site. Use with welded device boxes more than 4 inch wide. Use when sectional boxes are ganged. Easily adjust to any drywall thickness from 1/2 inch to 2 x 5/8 inch. Embossed guides quickly adjust the bracket for any box depth. Perfect solution to support boxes between two wood studs.