The easiest is to order a kit that has the Tambour,track etc all in one that you just cut to size.
I have made my own tambour for some Teak cabinets that I built some time ago. I used heavy duck canvas from the fabric store. There are s few adhesives to use. One is to use wood glue and weight it down until the glue sets. The other is to use a spray contact adhesive and press it in place.
That being said, we have not done a tambour appliance garage for about 6 or 7 years. We now just use a hinged door and IMHO this looks better and works better than the tambour ever did.Our customer satisfaction has also been much higher since then.