Converting gravel driveway to concrete My house has an 8'x100' gravel driveway and no garage. We are looking at re-doing it in concrete and adding a slab for a garage. There might already be a slab under our shed as there used to be a small stable there. I have not been able to find any real information on if it can be done. My husband and I have a lot of DIY experience and would prefer to put in the driveway ourselves. The gravel is under 1/2 inch and fairly compacted. 