what should i consider when i start the base/floor of my garage its gonna be 35X30X6'' or maybe 4 something that will hold a fullsize truck on what are the preparation steps on starting something like this as well. input greatly appreciated!
What is the base now? I assume you're going to be pouring concrete? You'll need compaction, steel, concrete and experience to get a level, flat, strong surface. I suggest you ask around for a concrete guy.