Wilrep's Noise Blok is non-toxic and available in 1 lb and 2 lb per sq. ft. with 1/2 lb. on special order. Noise Blok is commonly installed directly on the studs before drywall is applied to allow the material to hang freely. The material is easy to cut with standard 'snap off blade' utility knives making site fitting fast and easy. Standard roll sizes are kept in stock and custom widths and lengths are available for larger orders.