3' x 5' x 7/16", Wonderboard Lite, 100% Wonderboard Just 20% Lighter, New Formula For Faster, Easier Installation, Use Inside Or Outside, Great For Wet Areas, No Gypsum, No Wood Fiber, News Design But Same Durability, Full Performance, 7/16", 11 mm, Board Aligns To 1/2", 13 mm, Drywall Without Use Of Shims Or Spacers On Wall Studs, Includes A Preprinted Pattern On The Panel Surface & Is Easy To Score, Snap, Cut & Fasten, Simplifying Installation, Remains Stable When Exposed To Moisture Reducing Risk Of Moisture Damage, Meets ANSI A108.11, A118.9, A108.5 & A118.4.