Insulfoam manufacturers a garage door insulation kit for those of you who wish to insulate a metal garage door. The kit contains 8 sheets of rigid insulation laminated on one side with a high-impact, washable vinyl skin for improved durability, appearance, and easy clean up. The insulation is 1.25"x20"x54". Two kits are needed for double doors. The kits typically cost $49.99 each
Currently, the kits are sold at Home Depot in Arizona, Nevada, and some, but not all, stores in California. The kits are also sold at most Menards stores in the Midwest. In addition, you can special order the kits at Lowe's Home Improvement stores throughout the country. Visit your nearest Lowe's store and ask an employee about special ordering a garage door insulation kit from Insulfoam. They will contact Insulfoam to start the process.