CUSTOM BOOKCASES AND BUILT-INS At Progressive Design and Construction we do more than custom bookcases. We specialize in built-ins! What’s a built-in? A built-in wall unit may be an entertainment center, a home office, a custom bookcase, or a wardrobe, for when you don’t have a closet. We build custom cabinets around fireplaces, and even cabinets to accommodate your Home Media Centers. Custom fabrication and attention to detail allows Progressive Design and Construction to design the perfect built in for any part of your home, from the Den to the Mudroom, to the Living Room and beyond.