Mike, The Bucksteps comes with 4 sections, each 20" long, the step width is about 7 3/4" (steps on either side at top and bottom of each section). Total weight (4-sections) about 10 #'s and has a rating of 260 # limit. The Bucksteps attaches to the tree individually and secures with a cam buckle. The set will get you up to 15 feet...but will longer legs and not much clothing on, you'll be able to go a 'little further'. Can be ordered thru www.summitstands.com or for faster service call 'Karen', 256 353-0634. May be refered to one of their distributors, (www.amazonsports.com). You can also purchase another section separately to get you somewhere around the 20' height.
The 4-section kit should run about $90.00, of course shipping charges will then be added.
Hope this helps.