Garage Door Insulation Install Guide.This kit is Reflective Foam Core One side and the other side is white (finish side). We also make special custom garage door sizes so please message us for pricing. Our kits are based on a 4 panel (4 horizontal rows) pricing. If your garage door has 5 horizontal rows then the cost would be extra (1 extra roll plus shipping) Please message first if you have a 5 panel garage door. 99.99% of the garage doors made in the USA have 4 horizontal rows. Material"s Included in Kit: >>>Reflective One Side / White Finish Foam Core Reflective Insulation. (Measures 18ft x 24 inches)>>>Double Sided Acrylic Adhesive Tape (pressure sensitive).>>>Comprehensive Installation guide with follow along picture details.