Standard Sizes:20x20mesh, 20x18 mesh, 18x18 mesh, 18x16 mesh, 18x14 mesh, 16x16 mesh, 16x14 mesh, 14x14 mesh. Fiberglass insect screen is woven from PVC coated single fiber. Fiberglass insect screen makes ... strength, stable structure, etc.Standard Sizes:20x20mesh, 20x18 mesh, 18x18 mesh, 18x16 mesh, 18x14 mesh, 16x16 mesh, 16x14 mesh, 14x14 mesh.Color Available: Gray, black, white, green, yellow ...