Features:Ready to install in 2" x 4" wall openingPrecision extruded I-beam trackFrames can be cut down to accommodate smaller door sizeOrder (1) frame kit per doorCovered by Johnson Hardware's limited lifetime manufacturer warrantySpecifications:Height: 84-1/2"Width: 30"Depth: 3-1/2"Door Thickness: 1-1/8" - 1-3/4"Standard Door Size: 30" W x 80" HWall Construction: 2" x 4"Material: Aluminum, Steel, Wood