18" X 36" Or 36" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 37.75] steel + Product Details Size -

+ Product Details Size - 28"w X 12"h X 2"d (for duct opening measurement only)

Quality Packaging – Carefully packaged to prevent damage in shipment - hand inspected for quality

actual front end outer dimensions are approximately 38 5/8" width X 8 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 30" duct opening (measured at the opening)

18" X 36" Or 36" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 37.75] steel + Product Details Size -+ Product Details Size 18"w X 36"h or 36" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" width X 37. 75" height. High Quality High grade steel construction meant for high foot traffic areas. Installation Location Floor. Design Easy drop in installation Powder Coat Finish Smooth, shiny, scratch resistant, with no sharp edges. Looks like it was just waxed. Quality Packaging Carefully