a 2 post hoist has to have a minimum of 6 inchs of concrete to support it.a 4x4 crewcab pickup is pushing 7 ft tall.raise that 6 ft to get under it and your looking at 12-13ft so better have 14ft roof truses. and with mirrors hanging out the side over 8ft wide.a 10ft wide door at minimum.also if you need heat go with in floor heat and an electric boiler for it,no open flame to worry about when painting plus a warm floor is nice to work on if you have to crawl around on it.and as mentioned make sure its big enough.my poles were set for my 62x40x16 building and i looked at it and said"it ain't big enough".my truck and camper take up about 1/3 of it.also what i did on mine is in the back corner when they were setting the poles i had them set 3 inside the building 20ft in from the side wall and spaced 4,12 and 20ft from the back wall.to which i added a loft.i have 71/2 ft ceiling under it.and 61/2 above it.great for storage or extra room.it's also big enough under it i can get 2 cars under it.