A simple yet functional recreational kayak
Ganymede Easy Plywood Kayak
Ganymede Easy to Build Plywood Kayak Plans
Ganymede Easy Plywood Kayak Design

The design brief for this boat is to create something very easy to build yet sophisticated in form. I want a boat that would be easy and comfortable for a novice paddler, but responsive and fun for experienced kayakers.

I started with a simple 3-panel hull as about the simplest method to create the basis for flotation. Then I came up with a 3-panel deck with a peaked fore-deck to shed water and a flat back deck that created a raked cockpit that provides easy entry without being too big.

The result is a cute little boat with character.

This is a versatile design. As a stable, easy to paddle comfortable kayak, it is ideally suited for easy paddling trips in calm bays, ponds and rivers, yet for the more adventurous it could make a fun rough water and surf play boat that carves down waves and turns quickly. To make it even more adaptable, the plans include lines for three different deck heights so you can create a roomy boat the capacity for a large burly paddler, or build it smaller for children or petite women.

The plans for this boat are available for free. The instructions are also free at or the printed plans come with a manual.

Included in the Plans:

  • Three 24" x 36" [61cm x 91cm] Drawing Pages plus One Full Size Panel Pattern including: An overall drawing, and patterns for all the panels.
  • Building Ganymede and the Jupiter Point Series of Kayaks: This complete instruction manual written by Nick Schade guides you through the simple build process.

Digital Download

We are now offering digital downloads on selected plans. These are being sold through the Guillemot Kayaks Shopify Site. If you require printed hardcopy plans, please continue to use the ADD TO CART button above. If you would prefer one of several flavors of digital file, please use the Buy now button below. This will pop up a window to purchase the selected file through Shopify. You will receive an email and link to download the desired file after purchase.

Body Plan Drawing
Ganymede Simple Plywood Kayak Body Plan
Profile Drawing
Ganymede Stitch and Glue Kayak Profile Drawing
Plan (Top View) Drawing
Ganymede Easy Plywood Kayak Top View


Beginner Small Paddler Average Paddler Large Paddler Extended Tour Fishing Lakes and Rivers Open Water Racing Surf


Length Ft Beam In Beam Gunnel (in) Waterline Length Ft Waterline Beam In Design Displacement Lbs Draft In Waterplane Area Sq Ft Wetted Area Sq Ft Surface Area Sq Ft Volume Cu Ft
13.00 25.00 12.22 22.90 250.00 4.38 15.17 20.59 47.80 12.25

Secondary Measurements

Prismatic Coefficient Block Coef Midship Area Coefficient Waterplane Area Coefficient Lateral Plane Coef Sinkage Moments to change trim 1 inch Righting Moment at 1 degree Vertical Center of Gravity above DWL
0.56 0.53 0.96 0.65 3.42 72.00 47.18 0.05 6.13

Stability Curves

Predicted Drag