Bunkie boards are available in the same sizes as mattresses. The bunkie board is constructed with solid plywood, metal or
wooden slats, covered with fabric. The fabric is generally in a muted, flat color since the foundation is at the bottom of the bed. The thickness of each bunkie board is 1.5″ to 2 inches. The dimensions of each board are designed to fit platform beds, twin daybeds, metal bed frames, twin, and full bunk beds.
Below is a list of bunkie board dimensions.

Bunkie Board Size Chart & Dimensions
SIZE | DIMENSIONS (IN) | DIMENSIONS (CM) |
---|---|---|
Twin Bunkie Board Size | 2″ High X 39″ Wide X 75″ Length | 99cm X 190.5cm |
Twin XL Bunkie Board Size | 2″ High X 39″ Wide X 80″ Length | 99cm X 203.5cm |
Full Bunkie Board Size | 2″ High X 54″ Wide X 75″ Length | 134.5cm X 190.5cm |
Queen Bunkie Board Size | 2″ High X 60″ Wide X 80″ Length | 152.5cm X 203.5cm |
King Bunkie Board Size | 2″ High X 76″ Wide X 80″ Length | 193cm X 203.5cm |
California King Bunkie Board Size | 2″ High X 72″ Wide X 84″ Length | 183cm X 213.5cm |
Relate Questions
Do you need a bunkie board if you have slats? Yes, I highly recommend a bunkie board to sit over the beds’ wooden slats. The reason is that wooden slats are prone to break over time. A bunkie board will give your mattress a flat support surface that will prevent slats from breakages. A small investment on a bunkie board will stop you from buying a new bed frame sooner.
How thick should a bunkie board be? A bunkie board should be at least one and a half inch to two inches thick. The board is constructed of wooden or metal slats wrapped in fabric material. Bunkie boards have a flat, supportive surface and durable like a box spring.