These shelters are made of 25x25x3mm angle iron with welded joints with a .5mm galvanized corrugated steel sheet which will last a lifetime, the dimensions are 3ft wide by 6ft long making them very easily portable, for example we use them in the laying pens during the spring/summer and then on the shoot for dusting shelters during autumn/winter and don’t blow away because the design and weight of the steel.