Quonset Hut Evolution

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T-Rib Quonset Hut - 16' x 36' and 16' x 20'. It was most closely designed to the Nissen Hut. Before being redesigned around 8200 huts were built.

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Quonset Redesign - 16' x 36' and 24' x 60'. The new design included vertical 4 foot sidewalls for better use of space, and modified arch. Around 25000 Redesign huts were built.

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Stran-Steel Quonset - 20' x 48' and 20' x 56'. The last major redesign in 1943 was less expensive, faster to built and easier to transport due to its light weight.

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Jamesway Hut - 16' x 32'. The wooden ribs version with insulated fabric covering was developed for faster assembly in the Arctic.

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Portaseal Hut - 16'-2' x 37-0'. This hut is considered to be a Canadian version of the wood-framed Quonset Hut with plywood-cladding. Tar paper is used for the exterior finish of the plywood.

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Pacific Hut - 18'-6" x 37'-4". The Production of this design started in 1942. Due to steel's high conducting properties and tendensy to rust quickly, it was substitued by wood for the construction of the Pacific Hut. Its all-wood structure was considered to perform better in hot and humid climates and to have better insulation qualities for arctic weather climates. The exterior is made of celotex, a waterproof form of Masonite. It also has a distinct triangular ridgeline vent cover.

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Emkay Hut - 20' x 48'. It is recognizable by its pointed two centered arch with laminated wood ribs and wallboard. It could be used in many different climates.

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Armco Hut - 20' x 50'. Due its stability and strenght the Armco Hut could be burried in up to 6 feet of earth. The arched corrugated ingot iron structure was used for bunkers, ammo magazines, and personnel shelters.

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Cowin Hut - 36' x 60'. These large, semicircular (slightly less than half a circle) steel structures were called "Steeldromes." A truss system of horizontal steel tie rods and vertical steel hangers was constructed with the intention to resist snow loads, but after the first winter in Alaska many of them collapsed.

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Butler Hut - 16' x 48'. Its profile was slightly more than a half circle was an all-steel arched hut. Structure consisted of U-shaped arched ribs around an eight-foot radius. The end walls were framed with steel, and all walls were enclosed with 2' standing seam metal sheets.

Roksena Nikolova http://www.waymarking.com/cat/details.aspx?f=1&guid=fdb59588-d839-4743-996c-ceb817b3250c&exp=True