2 horseshoe straps : is can with 6 wheel. Track : 2 wide The track is not predrilled to allow you to drill holes at the necessary locations. If the track needs to be a bigger than 7 ft it needs to be in two parts. Hardware works with doors of 1-1/4" to 2 " thickness. We tested 250lbs on one door (2hangers) one track and it held fine.We estimate the track and hangers will hold 350 or more lbs if installed correctly into studs. The item "4 -12 ft vintage horseshoe hardware kit sliding barn door rollers made in usa" is in sale since Thursday, February 22, 2018. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Doors & Door Hardware\Other Door Hardware". The seller is "veym2413" and is located in Salt Lake City, Utah. This item can be shipped to United States.