
Wood is much cheaper than concrete block, and is much faster to build with. A standard house wall, say 20ft long and 8 ft high (1 storey) would require approximately 20 2x6 and 4 sheets of plywood. Thats approximately $220 in materials at big box store prices (so much less for builders). In comparison, just the blocks for the cinder block wall (8"x16") are $900, plus mortar.
To cut studs, nail, raise the wall, and add plywood is a two man job for ~2-4hrs, assuming no windows or doors. That is easily a job for a few days if you use cinder blocks.
But it’s totally Musk’s company, and he’s super efficient, so his company is OBVIOUSLY sitting on millions of dollars of rebates from months of sales without collecting. That’s peak efficiency.
I find it hard to believe that they had THIS much of a backlog. The article says only 1400 Canadian employees - thats a lot of money for a subsidiary that small, and means, on average, there was 7 backlogged cars for each employee.