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I have a two car garage with two doors. I would like to explore an idea of extending the length of a garage ( on driveway to match house edge) and replace the two doors with a single large door. Is that possible? Will I need structural evaluation for this? There is a room above existing garage, which can kept as not extended to avoid complications.

I bought a house 2 weeks ago but about 60% of the hardwood flooring is squeaking. I would like to have the house finish for Airbnb. Is it best to repair and refinish all but vinyl flooring ?

I’m planning to install vinyl tile flooring in my kitchen but the subfloor is currently made up of older wood boards that are a bit uneven and loose in spots. My plan is to secure or replace any weak boards and then put down a layer of plywood to create a stable base before laying the flooring. I’m just not sure what grade of plywood is best for this. Would standard exterior-grade plywood be fine, or is it worth paying extra for something like marine plywood? Any advice would be really appreciated. Thanks!