Cabinet Carcass
The basic box structure of a kitchen or bathroom cabinet — the sides, top, bottom, and back — before doors, drawers, and hardware are fitted.
A cabinet carcass is the structural box that forms the body of a kitchen or bathroom unit. It is the framework onto which doors, drawer fronts, hinges, handles, and shelves are attached. When contractors or kitchen designers talk about the carcass, they mean the shell of the cabinet — not the visible finished front.
What a carcass is made from
Most carcasses are built from one of these materials:
- Chipboard (particle board) — the most common and affordable option, usually with a melamine coating for moisture resistance. Found in most standard and mid-range kitchens.
- MDF (medium-density fibreboard) — smoother than chipboard, sometimes used for higher-end units.
- Plywood — stronger and more moisture-resistant than chipboard. Common in premium and bespoke kitchens. It holds screws better and lasts longer in humid environments like kitchens and bathrooms.
- Solid wood — used in high-end custom cabinetry. Durable but significantly more expensive.
Why carcass quality matters
The carcass is the part of your kitchen that takes all the weight — heavy pans, stacked crockery, appliances. A well-built carcass with solid fixings will last decades. A cheap one may sag, warp, or come apart at the joints within a few years.
When comparing kitchen quotes, pay attention to:
- Material thickness — 18mm is standard; 15mm is a cost-saving measure that compromises strength
- Back panel — a thin hardboard back is weaker than a thicker, fully fitted back panel
- Fixings — cam-and-dowel systems are stronger than simple screws
- Moisture resistance — especially important for sink units and dishwasher housings
Carcass vs. doors
It is common to keep existing carcasses and replace only the doors and drawer fronts. This is a cost-effective way to refresh a kitchen without a full renovation. If your carcasses are solid and square, new doors, handles, and a fresh worktop can transform the look at a fraction of the price. Discuss this option with your general contractor or kitchen fitter before committing to a full replacement.