Benches Expanded Metal Expanded Metal Greenhouse Benches Continuous Air Flow – Reducess fungus by allowing unrestricted air passage. Also allows for even distribution of heat and light. Long Life – Hot Dip Zinc coating practically eliminates the need for replacement. Also available plain if customer desires to galvanized or paint locally. Drainage – 76% open area allows easy drainage. Strong – Pots sit level. Versatile – No spacing problems. No Maintenance – Soil and water drop right through the bench – eliminating weed, soil and water accumulation. Light Weight – 94 lb. per one hundred square feet. Replacement – Usually can be adapted to existing frames. Low Cost – You’ll find this bench to be more economical than most bench material now used. Dramex Expanded Metal – 13 gauge – 3/4″ Manufactured from 13 ga. carbon steel, hot dip galvanized. Support materials and aluminum extrusion edging by others. Available in stock panels (4′ x6′ or 6′ x 6′) or custom sizes for individual requirement.