1/8 (3mm) Hardboard Sheets - 24x46 - Woodworkers Source

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3mm Hardboard, Hardboard Sheet

Hard White Maple 6/4 Lumber Pack: 3 Boards, Choose Your Size - Woodworkers Source

Plywood & Sheet Goods - Woodworkers Source

Cherry 8/4 Lumber Pack: 3 Boards, Choose Your Size - Woodworkers

3mm Standard Hardboard 2440mm x 1220mm (8′ x 4′) - Sheet Materials

3mm x 2440mm x 1220mm Standard Hardboard Panel

Granadillo 4/4 Lumber Pack: 4 Boards, Choose Your Size - Woodworkers Source

Hardboard 8' x 4' x 3mm – Discount Builders Merchant

Plywood Workbench: Episode 1 - Woodworking Masterclasses

Hard White Maple 4/4 Lumber Pack: 6 Boards, Choose Your Size - Woodworkers Source

Plywood & Sheet Goods - Woodworkers Source

My shop provides the custom order, if you need any sizes not included, please feel free to contact me. 1/8 or 3mm thick. Measurements: 24 x 24 Flat

Custom Size 1/8 inch (3mm) 24'' X 24'' Hardboard Tempered Panel (1 Sheet)

3mm Standard Hardboard 2440mm x 1220mm (8′ x 4′) - Sheet Materials

Maple - Woodworkers Source