Slab of Foam: 24" x 82" x 3" Regular - J&J Supply Inc.
5 Sheets White Foam Boards--Sand Table Building Model Materials 2mm / 3mm Thick Foam PVC Sheet Poster Board Mount Board for Mounting, Crafts, Modelling, Art, Display, School Projects - Walmart.com
Firm Black Polyethylene Foam Sheets – Cases By Source
High Density Urethane (HDU) – Blue Ridge Sign Supply Inc
How To Level A Concrete Slab Via Poly Foam Injection | EPP
Can Foam Insulation Be Too Thick? - GreenBuildingAdvisor
Airtex Heavy Duty Foam Slab-4" x 24" x 90"
1/8" White Foam Board | Shop 1/8" Ultra Thin White Board in Pre-Cut Sizes at Foamboards