>>326757947You use a 4x6 as a bottom plate if you're building a load bearing wall in a basement that hasn't been poured yet. it's a spacer in that situation as your actual bottom plate is being placed on top of it. You run a double bottom if you're pouring gypcrete in commercial for floors, as a double 2x6 is cheaper than using 4x6 posts.
>>326758219he's retarded, but there are very select uses.
>>326758378...hold on anon, you do realise those headers are double 2x10 nailed together right? It's not an actual 4x... For fucks sake go back to picking up the shingles the rest of your mexican crew kicked off the roof.