No special site preparation is required the surface should be fairly level, smooth, and firm. The unit can be delivered on dirt as long as it is not too soft, or on cement, pavement, gravel or grass. Some sites can be limited to getting access during certain times of the year, like the spring when it is wet & during the winter season because of the snow.When you place your order, we will ask you whether we should deliver the container with the doors to cab (drop off last) or doors to the rear (doors off first). This decision will depend upon where you want the unit located on site, door to the cab is the most common because you are able to back into a spot & set the container into your property.