Hamilton Building Supply stocks more interior doors than any other distributor in the area. Our state-of-the-art Interior Door Shop enables us to produce such specialty products as trapezoid-shaped cut-down units and full access bi-fold doors. Our sales associates will provide you with personalized service as they guide you through the door selection process. Almost all interior door units are assembled and pre-hung on site in our Residential Door Shop under strict quality control procedures. Click here for a list of all the sizes and styles of interior doors currently stocked at Hamilton Building Supply. We even machine new doors for existing frames so that updating the doors in an older home couldn’t be easier. Simply bring your existing door to us and we will match your new door perfectly so that all you need do is put the door back on the existing hinges. We can even pre-finish your interior doors under controlled conditions regardless of the time of year. To assist you in ordering doors and determining the proper door opening specifications, please refer to our quick and easy Door Handing Guide.