Primed-MDF Stock Doors

Our Medium Density Fiberboard (MDF) doors are “made by hands” in the USA at our state-of-the-art factory in northern Colorado. Sun Mountain’s doors are true stile and rail construction (not routed or moulded), with engineered components to resist warp. Choose from a selection of contemporary designs, pre-primed in the factory, with optional finger-joint Pine jambs. We sell direct to the trade or homeowner and ship nationwide to your home or construction site.