Roberts 100 sq. ft. Roll of Serenity Foam Wood & Laminate Underlayment 70-010 - The Home Depot
DIY Faux Wood Using Foam Board - The Shabby Tree
Eco Cork Foam 675 sq. ft. 3 ft. x 25 ft. x 3.2mm Waterproof Premium Plus 10-in-1 Underlayment-Vinyl Plank, Laminate, Engineered Wood 2200000135 - The Home Depot