[SUPER QUALITY RAW MATERIAL] Barn door hardware kit are made of 1/4” thick carbon steel (Maximum load 265lbs). Barn door wheel are made of POM (Stronger than plastic or nylon). Barn door spacer is also made of carbon steel (More stable than other plastic spacer). The bolts and leg screws are 8.8 grade (Keep the barn door hardware system last for long). The surface is spray black powder coat (Anti-rust, Looks smooth).,[EASY TO INSTALL] Barn door track pre-drilled hole space is 16", Step by Step Instruction included. Our Instruction is listing every step for installation from A to Z. You can finish the installation of barn door hardware kit in half an hour if you get 2 workers. In case you get any problem or missing parts during installation, please free feel to contact us via amazon.,[IF MY BARN DOOR FIT THIS SIZE] 6FT Barn door hardware kit fit for door panel width up to 36”, Fit for door thickness from 1-3/8" to 1-3/4"(If you your barn door panel is too thin, then you can using the 5mm black spacer pad inside package, if your barn door is too thick, then you need to buy longer bolt extra). If you have a door way trim, then you need to buy an extra trim board to install the barn door track or just remove your trim.,[WHY US] Get super quality barn door hardware kit from us, All the barn door track and barn door roller have been inspected in factory before delivery, Also they have been Passed 100,000 times opening and closing test to ensure the barn door hardware kit you get will works fine. Get a barn door hardware kit with a manufacturer price, why not?,[WHAT YOU WILL GET] (5)Barn door track, (5) Wall spacer with leg screws, (2) Door stopper, (2) Barn door roller with bolts and nuts, (2) End Cap, (1) Floor Guide, (1) Step by Step Manual. “ONLY HARDWARE KIT INCLUDING, BARN DOORS WERE NOT INCLUDED.”