437.3 sq ft (40.1 sq m). 164 2-ply sheets per roll. 4.0 in x 4.0 in (10.1 cm x 10.1 cm). Double 24 rolls = 48 regular rolls. 2 layers that flex and hold up. Septic safe. 2x as many sheets. Double roll = 2 regular rolls. Compulsive Design for a Comfy Clean: Confession: We can be a little obsessive about all the tiny details that go into our products. After all, crafting Quilted Northern Ultra Soft & Strong to meet your expectations matters. That's why it includes: Two soft, durable layers with interwoven fibers – so you won't have to choose between comfort & strength. Our proprietary technology that produces a super-flexible paper designed to hold up. Responsibly sourced, renewable materials that meet the standards of the Sustainable Forestry Initiative – so it's good for the earth (www.quiltednorthern.com/sustainability). Flushable and septic safe for standard sewer and septic systems. www.quiltednorthern.com. how2recycle.info. Sustainable Forestry Initiative: Certified sourcing. www.sfiprogram.org.