ideal for under the fuel tank perhaps dangerous goods storage must be craned away or hiab in good order a environmental requirement did shift with a 3 ton hiab originally.Needs to go place sold, has drainage bungs perhaps convert to a swimming pool for the kids bulid on top many varied uses. 650mm deep 1.75 meters wide 3.0 meters long.internal 100mm lip on top walls 50mm thick. all in good order hope this helps when you need one of these you know the costs has 4 swift lifts in floor to move