1. Why we used 0.7-0.8 mm vinyl tolex covered guitar amp and speaker cabinet ? Because guitar amp and cabinets were always taken along with player anywhere, surface of cabinets need strong protect. Some people like use 0.3-0.4 mm tolex for lower cost, which is too thinner and easy scratched. We recommend 0.7-0.8mm tolex which can give your cabinet long life . 2. Why our tolex have an interwoven cloth backing tolex? The interwoven cloth backing tolex will let tolex post on surface of wood easily and firmly. It will let your cabinet high quality. 3. Which glue used to post our tolex on wood? Any glue non-flammable, Neoprene based, water borne can be used. 4.How much will you need? Since most guitar cabinets are only about 10 or 12 inches deep the 18" width tolex should give you enough to cover the depth of the cabinet and to wrap around the edges. Measure around your cabinet (top, bottom, left and right sides) then order enough to wrap all the way around in one piece. Don't forget to order enough for the back panel if your cabinet has one. It is your responsibility to measure and order what you need, but here's a general rule of thumb. *Most 1x10 or 1x12 speaker cabinets or combo amps will require 2 yds of 18" wide material -don't forget to include enough for your back panel if applicable. *Most 2x12 combos will require 3 yards. of 18" wide material. 24"x36" piece for back panel. *Most 4x12 cabinets will require 4 yards of 18" wide material, 36"x36" piece for back panel