Corrugated Cardboard: The majority of all disposable cake boards are made of corrugated cardboard. This material consists of layers of fluted paper pressed between two outer layers, with the outer layers providing rigidity and the fluted paper providing insulation and thickness.
Laminated Chipboard: Chipboard is made of pressed paperboard, so it is lightweight while remaining fairly sturdy. It has a laminated finish to prevent grease from seeping into the material. This material is only strong enough to support smaller desserts.
Melamine-Coated Wood: These cake boards are made with medium density fiberboard (MDF) that is coated with melamine. It is sturdy and break-resistant, and the exterior also acts a sealant to resist grease. The board's melamine coating makes it easy to clean and it maintains a polished appearance through multiple uses.
Foam: Cake boards can also be made of dense foam, which is naturally resistant to grease. The foam material would still need to be covered, and you should be careful not to cut into the foam if you intend to cut your cake on the board.
Masonite: Made of medium-density fibreboard (MDF), this material is a reusable option for your cakes. It needs to be covered in foil, wrap, or fondant before each use to protect against grease. Due to this inconvenience, these boards are often only used between cake tiers to provide structural support.