9 Boat Bottom Types

9 Boat Bottom Types

9 Boat Bottom Types

Along the past decades, more and more people have learned how to use hand and power tools for their diy wood working projects and a lot has been done lately in the diy boat building area. Many of those projects often turn out very creditable jobs.

A lot of these people are turned off by the thought of making something that is not all square corners. Boat building process usually involves bending wood or other flat material to form curved shapes and that discourages people. When they look into boatbuilding plans and see that it usually starts with a lines plan and the attendant table of offsets that dimensions the curves they usually don’t move from there.

Constructing the first boat, doesn’t matter how small it is, is an experience not to be soon forgotten. Watching a hull grow from flat paper drawings and flat material into a shapely form provides hours of fun and is super therapy after a stressful day. When the job is carefully done, the finished vessel is a source of great pride to the builder. And unlike a piece of furniture, which is often put in a corner and soon forgotten, a boat is used over and over for owner’s pleasure for quite some years.


In this article I would like to show you some types of boat bottom that is commonly used in boatbuilding. The relative merits of the hull types are argued far and wide, but just about everyone will admit that there will never be a v-bottomed hull as handsome as a well designed round-bottomed boat, especially for a sailing craft.

You can see on the picture in the post the essential differences between the framing of flat,  vee, arc, and round-bottomed hulls. Although the lower ends of the frames in the round – bottomed boats are shown butted against the keel, it is sometimes possible, depending on the hull shape, to install them in one piece, extending from the deck on one side to the deck on the other side. In contrast, note the number of pieces that make up a frame for a v-bottomed boat. On the other hand, frames are spaced farther apart than in a round-bottomed boat, so the frames are fewer in number.

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