Surface Source 8 x 11 Rug Pad Breaker Bar in their tested soil class in their tested soil class covering 15 square feet with an extra thick 2 Place waffle side down on hard surfaces Place fabric side down on carpet Helps hide irregularities or grout lines in stone or tile floors Ideal support pad for thin or fine rugs Provides a solid base over carpet to reduce rug puckering around furniture legs Will not stain Material Type Other For Use with Hardwood Yes For Use with Carpet Yes Warranty 1 year limited Actual Width (Feet) 8 UNSPSC 52101500 Use Location Indoor Actual Length (Feet) 11 CA Residents: Prop 65 Warning(s) No Common Measurement (W x L) 8 x 11