This barn door using natural spruce wood as raw materials, which is more environmental friendly, healthy and comfortable. The wood grain is clear, natural and beautiful. Natural woody smell, strong sturdy and not easy to crack, with good corrosion resistance, durability, sound insulation, heat insulation and deodorization. [100% Solid Spruce Wood]: Solid Spruce Wood barn wood door is durability, flexibility and not easy to be rotten, not easy to crack as well, it a good furniture material. [Easy to varnish]: The solid wood barn door can be painted with favorite color to fit your home environment. Great for warehouse, bedrooms, bathrooms, storeroom, pantries, closets and so on. [Easy to install]: the barn door is pre drilled and ready for assembly. All the screws are suitable for you. We provide step-by-step graphical and text installation analysis manual. Solid core thick: 1/2. 1, 30″ x 84″ Barn Door×1. 2, 5.5 FT Sliding Barn Door Hardware Kit×1. Q: How much space do i need to keep from ceiling to doorway? A: At least 6. Q:Can i cut my rail to fit my space? A: Yes, Track can be cut into any length to meet your own require. Q: How to make sure the barn door is safe and stable after install it? Door Stopper :2 Door stoppers will keep the door between the door stopper, they will stop the door when the roller reach it, make sure the barn door will not leave the track when you opening or closing the door. Floor Guide :Floor guide is install under your barn door with a groove, it can stop your door swing under movement. Anti-jump :the small round pieces install on the top of barn door to stop the door jump out when closing, opening or moving. But after a period of usage, the natural wood board absorbs the moisture in the air and the board slowly expands. If there is no gap at the beginning of the installation, the expansion of the wood will cause the door to crack.