Green Island 15
Description
The Green Island 15, designed by Australian boatbuilder Mike Roberts of Headland Boats in Brisbane, Queensland, is a versatile, flat-bottomed sharpie skiff optimized for amateur stitch-and-glue construction from marine plywood over hoop pine frames, delivering a stable, multi-purpose platform for family outings, rowing, sailing, and light outboard motoring in sheltered coastal waters like Moreton Bay. Measuring 15 feet LOA with a 5-foot beam and minimal 6-inch draft (increasing slightly with centerboard down), it weighs around 200–250 pounds dry and accommodates 3–4 adults with wide thwarts, a forward cuddy for storage or shelter, and a transom well for up to a 4-hp motor achieving 5–6 knots. Its sliding gunter sloop rig (roughly 80–90 square feet of sail) provides responsive handling for day sails up to 6–7 knots in moderate breezes, with easy beaching and trailering via a lightweight trolley; praised in builder forums like WoodenBoat and WoodworkForums for its dry ride, forgiving stability, and quick 100–150-hour build time using 6–7 sheets of 6mm plywood, the design evolved into the glued lapstrake Eve 16 for smoother lines. Roberts has retired and plans are scarce (contact via legacy forums or Ross Lillistone at baysidewoodenboats.com.au for scans).
The standard boat dimensions
| i | 19.50 ft |
|---|---|
| j | 6 ft |
| p | 23.50 ft |
| e | 10 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 19.50 ft | 6 ft | 23.50 ft | 10 ft | - | - | - | - |
Documents
Sails
Green Island 15 - MAINSAIL
| Luff | 15.535 ft - (4735 mm) |
|---|---|
| Foot | 8.202 ft - (2500 mm) |
| Leech | * 17.12 ft - (5218 mm) |
| Tack Angle | * 87.21 ° |
| Diagonal | 17.21 ft - (5246 mm) |
| Head (inches) | 1.75 in - (44 mm) |
| Area | * 64.61 ft² |
| Edit in Calculator |
Green Island 15 - JIBSAIL
| Luff | 11.16 ft - (3402 mm) |
|---|---|
| Foot | 6.58 ft - (2006 mm) |
| Leech | 10.5 ft - (3200 mm) |
| Deck Angle | * 0.99 ° |
| Area | * 33.78 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.