Our MDF-DOORS.com interior doors are 100% made in the USA at our northern Colorado factory—pre-primed (ready for painting) and available in 1-Panel, 2-Panel, and 3-Panel designs, with square tops and Craftsman-style square sticking and flat panels. Click on the design to customize size and optional pre-hanging (with door jambs and hinges). *4 & 5 panel doors are limited to 8’0″ height