27 oz Underlay 36" used to protect fabrics getting torn or punctured from seat spring in furniture or automobile seating. We stock 3 different thickness, where heavy traffic uses like restaurant's would want to use the 40 oz underlay where as a seasonal cottage can use the 20 oz because of low traffic.  

Thickness is 0.34 inch.

Density is 6.8 lbs./cu.ft.

Flame Spread Rate is 30.

Smoke Density is 25.

Weight: 27.00 ounces per square yard

Width: 36"

Put Up: 25 yards.

Sold per running yard.