Bill,
About 15 or 16 years ago I embarked on my first attempt at scratch building in large scale. The project at the time was a grain elevator that I had read about in MR in HO. It was a simple affair, just two silos with a small office and elevator leg. The whole thing would have been about 8’ tall at the highest.
As part of the “small office” area, the author mentioned he used sheet plastic. I think it was .060 or .080. I got the crazy idea that I wanted to build it in 1/29. I bought a 14’ 8" PVC pipe and started looking for a supply of sheet styrene. Low and behold about an hour away was a major plastic supply house and they had 4x8 sheets from .010 to .125.
So I bought 3 or 4 sheets of .125 and some thinner sheets and started building. I haven’t stopped since. In the meantime, a few hobby shops have closed and I’ve stocked up on strips.
I currently keep the following 4x8 sheets on hand: .125, .060, .040 and .030.
Added to my styrene addiction was my great uncle closing out his plastic supply business a few years back. I grabbed probably 2 dozen sheets of .060 ABS. I wish I would have taken more as he had some thicker stuff as well.
I still haven’t bought ever size but the plan is to eventually get 2 to 3 packs (20-30 strips) of each size on hand. I think that if I can cut them with a Circut it will save money in the long run and I can also make scale 1x, 2x etc sizes as well.
For the shapes like H, I, C channel I’m slowly stocking up as well.
I really got addicted to building with styrene and then started watching Adam Savage Tested videos and he extended my love for scratch building in styrene. A lot of the ILM builds from the 70’s on are styrene. And apparently they had quite the “hardware store” of supplies. That’s my eventual goal as well.
So yes, I’m addicted to styrene and it’s my choice material. When I get buildings done on the layout, I will use it for rolling stock.