Snow can accumulate and cause damage to roofs. A-frame cabins first have the shape of a triangle, which according to our research is a capitalized version the letter that is our alphabet's initial letter. The biggest benefit for cabinowners with A-frames is their cost-effective robustness. If you're not able to find an A-frame available for sale -- which shouldn't be too surprising given the small inventory of cabins in the United States through 2020 -- or you live in an area where A-frames are uncommon and you want to build one your self. A-frame cabins are available in many places, such as lakes and hiking trails. R. A-frame roofs that are properly insulated can provide an excellent shield against the elements, which means they're energy-efficient and easily adaptable.