Building custom cabinets or built-in furniture yourself is possible, especially for basic designs, if you have woodworking experience. For a professional result, hiring a service is recommended to ensure precision, high-quality craftsmanship, and superior finishes.

The vertical space between closet shelves depends on what you're storing. For clothing like shirts and sweaters, 10 to 12 inches is enough. Towels and linens need 12 to 15 inches, while tall storage bins may require 18 inches or more. Overcrowding your shelves can reduce accessibility and increase clutter, so be sure to leave breathing room for your items.

Bump-out additions can add some space to a closet without requiring any significant structural work. This entails pushing back the existing rear or side of the closet, simply moving the wall into either an adjacent room or unused space. For ground-floor closets, this could even be extended to the exterior of the home, but that has its own complications. Bump-outs are a good discussion to have with your contractor if you’re just looking to increase the space a little—not renovate the entire closet space.

Different types of closets are defined mostly by size. A few different types of closets include:

• A reach-in closet is a smaller closet that you can stand in front of and reach everything inside it. Aside from the size, the doors and the level of drywall finish are typically the largest price factors.  

• A walk-in closet can be anything from a small 5-by-5 feet closet that has a narrow walkway with shelves on both sides to a 100 square foot bedroom-sized closet with shelving along the walls and plenty of room to move around in.

• A built-in wardrobe often does not have a door and leaves the clothes and other contents open to the room, whereas a closet usually has a door to separate it from the rest of the room.