Our Vancleef Hardware products have been redesigned with consumers in mind. We have changed the product to have less pieces so installation is now more simple and quick. All tracks below 10'' are now using the American Standard spacing (16") and are one single track now instead of being composed of smaller tracks. All tracks now have additional holes at the end of both sides for expanding the track size. For tracks above 10'', connecting tracks are now simple and quick, using a junction plate at the ends of the tracks to connect. We have also changed the bracket shape to a U-shape. Now the clearance is only 7 1/2".Guaranteed ServiceOur product will come with a 5 year warranty. Our premium barn door hardware has passed 120,000 times opening and closing tests. Our products ship from the USA using FedEx. The lead time will be 1-2 business days and the product will ship within 2 - 5 business days. If you need a customized order then you can contact us through Houzz.Pre-install Notice: 1. Only the hardware is for sale, DOOR IS NOT INCLUDED. 2. This door hardware is compatible with door panel width of approximately 30" and thickness of 1 3/8" to 1 3/4". 3. You need to have at least 7 1/2" of space between the top of the door to the ceiling to accommodate for the hardware. 4. The maximum capacity of each rail is 200 pounds.5. Tracks above 10'' have to be connected with smaller tracks. Therefore the spacing in the middle will not be 16". Package Includes: 4x 8FT Flat Track 4x Steel Hanger/Roller 4x Door Stopper 24x Adjustable Spacer 12x Lag Bolt 24x Washer12x Long Expansion Bolt12x U-Bracket12x Bracket and Track Screw24x Bracket Connector24x Short Expansion Bolt2x Floor Guide 4x Anti-Jump Pad1x Hex Wrench 1x Installation Manual