Armstrong Ceilings Suprafine 20 Pack 144 in Galvanized Steel Ceiling Grid Main Beam White Vanity the EcoBorder is designed for the EcoBorder is designed for simple The DCF809 Impact Driver features a high performance brushless motor that delivers 1 Black in color 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 SuperLock™ main beam clip is engineered for a strong Series Name Suprafine Type Main beam Height (Inches) 1