12" SW Adjustable Floor Support (856) Zoom 12" SW Adjustable Floor Support (856) SKU: 300856SW The Joist Support bracket is used as a support on the top side of combustible floors where the chimney passes through. Use in conjunction with a firestop on the underside of the floor Availability: In stock £548.99 Qty: Add to Cart Email to a Friend Additional Information Additional Information Additional Information SKU 300856SW Diameter 300mm (12") Components Supports CMS tab x Add to Cart Price: Actual Price: Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page. You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart. Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page. You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart.