Tiki 31
Description
The Tiki 31 (also known as the Wharram Tiki 31) is a 31-foot coastal and workboat-style cruising catamaran designed by James Wharram with Hanneke Boon. It is a self-build plans design using plywood/glass/epoxy stitch-and-glue construction with lashed crossbeams and deep V-hulls, positioned as a versatile traveller/workboat with ramp access at the stern and open hull cockpits (often fitted with removable awning covers, making it ideal for fishing or utility use). Plans have been available for decades, with a moderate number of boats built worldwide by amateur and professional builders (exact quantity is not publicly documented, but examples exist in Europe, the Mediterranean, and beyond, including well-maintained cruising boats). It builds on the lighter Tiki series philosophy (simplicity, shallow draft, low cost, and seaworthiness) but adds more payload and workboat practicality, with options for a deck pod or awning for shelter.
Construction Details
| Designer | James Wharram Designs |
|---|---|
| Builder | Home Built |
| Length | 31.000 ft |
| LOA | 31.000 ft |
| LWL | 27.000 ft |
| Beam | 17.500 ft |
| Displacement | 3000 lb |
| Max Draft | 1.750 ft |
| Year Built | 185 |
The standard boat dimensions
| i | - |
|---|---|
| j | - |
| p | - |
| e | - |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| - | - | - | - | - | - | - | - |
Blueprints
Sails
Tiki 31 - JIBSAIL
| Luff | 21.67 ft - (6605 mm) |
|---|---|
| Foot | 8.92 ft - (2719 mm) |
| Leech | 19.83 ft - (6044 mm) |
| Length Perpendicular | 8.16 ft - (2487 mm) |
| Area | * 88.44 ft² |
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Tiki 31 - STAYSAIL
| Luff | 21.33 ft - (6501 mm) |
|---|---|
| Foot | 14.25 ft - (4343 mm) |
| Leech | 20 ft - (6096 mm) |
| Length Perpendicular | 12.9 ft - (3932 mm) |
| Area | * 137.61 ft² |
| Edit in Calculator |
Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.