The kit contains Owen's Corning Foamular 150 with scored 4'x8' sheets 2" thick. This is easily findable on the home depot website. they say pick up in store only. "Pick up Today: Free" but you need to read the fine print. "Item not sold at Kiefer Rd #640" And if you "Check nearby Stores" the list is empty. I tried searching in New England too and they appear to not stock it anywhere.
I even tried walking into Home Depot and looking around. They had 1/2" 3/4" and 1" stock. Some of it tongue and groove, but nothing thick enough. There was a lot of the R-Tech Expanded Polystyrene (EPS) which is noteably different from Extruded Polystyrene (XPS). Finding extruded foam is apparently an issue for model railroaders too. See this discussion.
I found another Bay Area hovercrafter who said they found it at HD-Supply. In this thread]
# baseline2013-12-10 11:16
I live in the SF Bay Area and am having a similar experience finding foam. Finally found some $expensive$ sheets at HD supply in SF which caters to more commercial customers. According to the blogs, the RC community has had the same problem we have and have proposed to form a coop to buy minimum quantities and keep a strategic supply for members to purchase. It is an interesting idea and one that we might consider if enough of us are clustered together. I am about to start my project if there are others in the SF Bay Area, let me know. I believe that a minimum purchase would cover almost 2 crafts. It may be more cost effective to buy a pallet and have it shipped to us directly.
Unfortunately after calling HD Supply they didn't have it either. Nor does Orchard Supply Hardware.
I'm surprised at the amount of info I can get on the insulation from Owens Corning directly. homeowner's site or the commercial site.
They have a nice vendor search However it seems that in the 100 closest locations Home Depot is the only place that stocks Foam Insulation. All the others only stock the fiberglass rolls.
It's quite frustrating, especially since I drive past their factory on Central Expressway in Santa Clara several times a week.
