78.7" Original Antique Sliding Wood Barn Door Hardware Track, Premium Quality, Rich Dark Brown, Extra supply : Longer Bolts for Door Thickness 1-3/4" and Concrete Anchor Bolts 78.7" Antique Style Sliding Wood Barn Door Hardware, Rich Dark Brown High Quality, Strong Hardware for Interior and Exterior use. Wood door Thickness from 1-3/8 - 1-3/4" US Standard 16" Studs Spacing Holes !!! Easy Installation and Detailed instruction Manual Included. Door Panel is not included.