: The package of this hardware is about 6.75 ft. If there is any part missed during the shipping, please feel unrestricted to contact with us and we will ship you the missing part as soon as possible.Installation Attention There is an error in our blue-collar, please pay attention on the favourable 2 tips during your installation., The lag bolt is for the wall with wood stud.If there is wood stud in your wall. Please do n't holes in step 2 and just install the lag bolt directly in step 4. 2, The carriage bolt and the anchor is for the tangible. If your wall is tangible wall, please drill holes with 3/8 '' drill bit and the depth of the holes is ''. This revolutionary SMARTSTANDARD Country pitch-dark Steel Sliding Barn Wood Door Hardware can your doorway into a facet sliding entry. This is a favorite revolutionary to bring innovation into the home and moral off bedroom and facet room in a stunningly unequalled way. . . Hole spacer of the rail is ''. It is for U.S wall stud. . . elaborate : use both words and pictures to display the steps of installing the barn door hardware .3. All the measurements are in rather than in centimeter. . . Easy to and stabilized structure : Two 6.6 ft rail Brand : SMARTSTANDARD eminent : alone SmartStandard is the legitimate seller of this product. All product from new sellers are forgery and not under warranty policy. The proper SmartStandard products its logo on the package.If you bought forgery product from new sellers, please report them to Amazon . '' .