i've been wanting to try this treeless tree house idea but can't find an 8x8 piece of lumber to be the main base/pedestal. The tree-less tree house UBuild....step by step i've been wondering if i could use a treated 6x6 instead. let me say i mean to make a slightly smaller platform (about 6'x6' instead of 8'x8') and shorter height (about 5' off the ground instead of 8'). i also don't plan to put a roof on mine (so not as top heavy), and i want to make two platforms with a swing set bettween them so they'd kind of brace each other a bit. i'm hoping those things might let me get away with it. should i keep trying to find the 8x8, or do you think this would be ok? thanks for any help.