15 inch x 15 inch , SpringFIT Access Panel, Convenient & Attractive Means To Hide Unsightly Wires, Cables & Pumps While Maintaining Their Accessibility, Installs Faster & Easier, No Cutting Is Required, Integrity Of A Wall Remains Intact, Plain White Faceplate That Can Be Wallpapered Or Painted To Match A Rooms Decor, For Hole Size: 15 inch x 15 inch Use A 15 inch Panel, Fits Into Odd Shaped Holes, Template Is Provided If Cutting Is Necessary, Made Of Sturdy Polystyrene.