Corbett homebuilt Trimaran Year Length Beam Draft Location Price 2009 21′ 16′ 1′ Florida $7,900 Description: 2009 Custom Built 21 Foot Folding Trimaran. Fun, safe, fast sailing boat. Lots of space for family and friends on the trampolines. This trimaran was built using Hobie 18 catamaran hulls with daggerboards as the outer hulls and Hobie