3-7/8" x 8-7/8", Side Seam DG-2 Double Window Pres-Stik Wesco Tint, Top Window 7/8" x 3-1/2", 3/8 left, 2-1/2 bottom, Bottom Window, 1" x 3-1/2", 7/8 left, 11/16 bottom, White Sulphite (SFI Certified), 92% Brightness, Vellum Finish, Blue Wesco Inside Tint, Two Side Seams Under, Poly Window, Self-Sealing, Twin Flaps Down