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Copyright  2001 - 2021  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 is now also an outrigger. Many of them are unconventional designs, boats for individuals like you?
Many of my inventions were copied, to name only a view. First, my vertical furling system for mainsails (1967 !) on my PENGUIN monohull, 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 800 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
HOME
Some of my designs. Hover over to enlarge
NEW DESIGNS &
PROJEKTS

NEW ECO 520