1/8 thick foam board is perfect all general photo mounting purposes or as a rigid backing board. Purchase this foam board online from
Owens Corning FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing 20WE - The Home Depot
Greatmats Tap Dance Floor Kit | 6x6 ft x 5/8 inch | Tap Dance Flooring Tiles | with Borders | Easy DIY Portable Dance Flooring | Various Wood Grain Colors
Thin Wood Sheets for Crafts, Wood Burning, Basswood Plywood (6 x 6 x 1 – BrightCreationsOfficial
R-5 (15 psi) Owens Corning® FOAMULAR® 150 Extruded Polystyrene Foam Board Insulation 1 x 4' x 8' - Tongue & Groove Edge at Menards®
Closed Cell Foam Roll - FoamOnline
Johns Manville R-6, 1-in x 4-ft x 8-ft AP Foil Faced Polyisocyanurate Board Insulation in the Board Insulation department at
12 x 18 Foam Core Mounted Poster
1-in x 4-ft x 8-ft Expanded Polystyrene Board Insulation in the Board Insulation department at
8 x 10 Foam Core Mounted Poster