Armstrong Ceilings Suprafine 20 Pack 144 in Galvanized Steel Ceiling Grid Main Beam Combination Wrench ) 7 1 4 Maximum Cut Depth ) 7 1 4 Maximum Cut Depth @ 45 Deg Ergonomic streamlining molded with premium quality memory foam for optimal lumbar support and never flattens out making it great set for home and office settings 5625 Material Galvanized steel Rust Resistant Yes Package Quantity 20 Commercial Residential Commercial Residential Color Finish Family White Manufacturer Color Finish White Warranty 10 year limited UNSPSC 30161600 CA Residents: Prop 65 Warning(s) No 144 in x 9 16 in x 1 11 16 in Rotary stitched web for additional torsional strength and extra stability Hot dipped galvanized coating inhibits red rusting better than electrogalvanized or painted systems Heavy duty load performance 240 Lft per carton (20 pieces per carton) Easy to cut and field modify to suit job conditions using standard tools White colored capping SuperLock™ main beam clip is engineered for a strong