Cost I can not tell you. I was in the business for 50 years but we specialized in high end weddings and corporate events. Our supplier for what we called Clearspan Structures was
Losberger De Boer - out of Germany, I visited their factory several times and was amazed at the permanent structure that they produces. Many of them two story. Having just erected a 80' by 75' hangar with a 70' bi-fold door I can tell you that the steel buildings are a lot more flimsy than the aluminum structures. The door is typically half the cost of a hangar if you go bi-fold etc, If a person is willing to do a little work closing the doors they can be fabricated for a fraction of the cost. More like a curtain with steel cables built in that are attached to the threshold with ratchets. I have enclosed a couple of pics of what we put up. Different animal.
The whole idea of this is a hangar that can be moved when the ground lease is terminated. The aluminum structure will last for ever, far outlast steel, the fabric may have to be replace after 20 so years but it is relatively inexpensive as they are all flat pieces with keder sown in. Nothing like the fabrics of yesterday.
They go up just like a standard steel building with beams, trusses, columns, girts, purlins and cross cables. Anchorage can vary from 42" steel stakes like we used on temporary structures to eight foot screw anchors or concrete J
anchors. The one in the pics is 18 m wide (about 59') and each bay is 5 meters. (16.5') We would put up a 60' by 120' with sides with six men in one day.
I am not trying to sell anything, just thinking out of the box.
the pics below are of the hangar that I have just completed out at the farm.
Life is a barrel of fun.
Ken Andrew
