In the process of building a "attefalshus" and now it's time to lay the floor. I've bought 95x22 planks to be screwed under the floor joists and then there will be a subfloor panel. Initially, I intended to use fiber cement boards which are sold at a pretty reasonable price at Byggmax, but I have now found out that they won't be available until the end of March and we need them in about 2 weeks.
My question is, are there any other alternatives at reasonable prices, or is it oil-hardened subfloor panels that are the way to go? I'm a bit worried that these might bend too much as it would mean tearing up the floor if I have to relay them unfortunately, or tearing up decking around and then digging underneath.