How to raise building from floor?
Depends on what kind of floor you're putting in. If it's concrete then you don't need to raise it, just undermine the walls one at a time and support them in the process. Pour concrete under them then let it harden. When you've done all four walls then you can pour the middle. The footings (under the walls) should be 12 inches wide by at least 6 inches deep. The floor can be three inches deep - depending on what you plan on putting on it. But three inches is usually plenty. Hope this helps. 'av'a g'day mate. )
1. Empty the shed. 2. Disconnect the walls from the floor. 3. Use a floor jack and a 4X4 to jack up one side of the shed. You will need someone to hold the 4X4 vertically with one end on the jack so that the other end can be jacked up to reach a structural part of the roof or a rafter. Jack the side up about 3 inches. 4. Place a 2X6 board under the raised side with the flat sides of the board parallel to the ground and placed so that the board extends about 3 feet beyond the shed on both sides and so that the wall will sit on the 2X6 when you finish step 5. 5. Lift the 2X6 up until it touches the underside of the shed edge. Prop the board up on other boards so that there will be about 2 inches available under the board 6. Repeat steps 3, 4, 5 on the other side of the shed. 7. Continue lifting the same two sides 3 inches at a time until you have the shed sitting on 2X6 boards and the boards on cinder blocks about 8 inches above the ground. Don't lift one side all at once because some sheds are flimsy and would collapse unless you alternate lifting the two opposite walls. 8. Replace the floor. 9. Use the floor jack and the 4X4 to take one side of the shed at a time off the boards and remove the 2X6 boards and cinder blocks. Do the lowering a couple of inches at a time alternating between the two walls that are on the boards. 10. Connect the walls to the floor. 11. Take lots of pictures before, during and after. 12. Brag until everyone is tired of hearing about it. Mayan