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

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Hardboard 3mm – Andrew & Co. Ltd

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

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

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

Plywood & Sheet Goods - Woodworkers Source

Lumber - Woodworkers Source

Baltic Birch Plywood, 3 mm 1/8 x 12 x 24 Inch Craft

3mm x 2440mm x 1220mm Standard Hardboard Panel

Plywood & Sheet Goods - Woodworkers Source

3/4 (18mm) Exterior Marine Grade Plywood on Veneer Core - 24x46 - Woodworkers Source

3mm Standard Hardboard 2440mm x 1220mm (8' x 4')