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Copyright  2001 - 2020  by B. Kohler       All rights reserved
I design multi hulls for home construction since 1980 and selling plans over the Internet since 2001. I lost count on how many countries around the world my boats were built. I bring three types of experience into my designs. I studied physics. I have built 15 boats. So I know what works and what not. I lived, with my wife, for 11 years on board of our catamaran "PELICAN".
My portfolio includes a wide range of catamarans and now also an outrigger. Many of them are unconventional designs, boats for indivitualist like you?
Many of my inventions were copied, to name only a view. First, my vertical furling system for main sails (1967 !) on my PINGUIN mono hull, my simple rudder automatic (1980) and the negative stem (2003).
Design styles range from the DUO 425 to the C 1000, the first multi hull that sailed, solo, non-stop, around the world. Our "home built" designs maintain the time-proven wood/epoxy/glass composite construction system, resulting in a strong, light and inexpensive craft. Can you repair a chair? Then you can build one of these boats.
I am known in the business for my personal support and the support from the K-designs forum* with over 1000 members. Pick one and build it.

D E S I G N S
4.25m to 5.5m
6.00m to 8.00m
8.60m to 10.5m
10.5m & more
Power cat's
Outrigger
Houseboats
Custom designs
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Some of my designs. Hover over to enlarge
NEW DESINS &
PROJEKTS