During WWII we lived in a 3 bed-semi to the west of Manchester, and before the war ended, we were supplied with an air-raid shelter which was assembled in our front room. It was of heavy steel construction with a flat top, sloping sides, and short vertical walls at floor level. I remember that the steel plates were bolted together, and were slightly ridged - presumably for extra strength. After the war, we unbolted the structure, and re-erected it in our garden where it served as a coal shelter, keeping some of the rain off our supplies of coal. Here's a sketch of the shape: I wonder if anyone can tell me what its name was. My grandmother, who lived a short distance away, had a typical Anderson shelter in her rear garden (hers was half buried), and some neighbours (living in a similar house to ourselves), had a Morrison shelter in their front room. From Wikipedia - Anderson shelter, unburied Also from Wikipedia, Morrison Shelter - flat top, coarse wire net side walls Prior to the delivery of our shelter, we had sheltered under our tough oak dining table, and I expect it would have been strong enough to give some protection from debris, but not a direct hit. Thanks for any suggestions.