Interstock Premium Cabinetry a is a manufacturer and importer of kitchen cabinets and bathroom vanities. We are based in Levittown, Pennsylvania, and have well over 100,000 cabinets in stock at our 160,000 square feet of warehouse facilities. Since 2002 we have stocked and designed several lines of all wood cabinetry designed for builders, renovators, real estate management and consumers. We can either expertly and durably assemble the cabinets or we can ship them RTA (Ready-To-Assemble).