LOCALLY OWNED OPERATED FOR OVER 50 YEARS! Discount Builders Supply is the largest family owned & operated hardware store in San Francisco. We are a one-stop home improvement center for homeowners, renters, contractors, and property managers. FREE PARKING is offered at our location, which is conveniently located at the intersection of highway 101 & South Van Ness. We stock an extensive selection of building products including lumber, plumbing, electrical, paint, doors & windows, kitchen & bath cabinetry, countertops and specialty appliances - all at very competitive prices! And if there is something special you require for your project, we can order it. Our exceptional service and knowledgeable staff are here to save you time and money.