The 1500 Series standardduty pocket door frame is designed to carry heavy standard size doors up to 125 lb each in standard 2 x 4 timber or steel framed stud walls The 1500 frame kit is packaged for easy transport and fast installation for either single door or converging door applications The 1500 is a versatile frame and can be adapted for use in nonstandard wall thicknesses, block masonry walls and can be cut down to accept any smaller size door size