Hardboard Tempered Panel (Common: 1/8 in. 4 ft. x 8 ft.; Actual: 0.115 in. x 47.7 in. x 95.7 in.) 832777 - The Home Depot
Masonite board cut to size. Hard board for packaging.
Hardboard Panel, 3 mm X 4-ft. X 8-ft.
Fibrex 3mm 48-inch X96-inch Standard Hardboard
Strathmore Canvas Panels
Guerrilla Painter PanelBuddy Wet Painting Carrier
2.5mm 3mm Plain Masonite Hardboard - China MDF, MDF Board
Is hardboard toxic ? DIY Home Improvement Forum
PC 3mm 2440mm x 1220mm
Competitive Stretched Canvas (7/8)
Brown Masonite 3mm 2440 x 1220mm