| Development | |
|---|---|
| Designer | Charles Ludwig |
| Location | United States |
| Year | 1985 |
| No. built | 169 by International Marine |
| Builders |
|
| Name | Sanibel 18 |
| Boat | |
| Displacement | 1,369 lb (621 kg) |
| Draft | 4.00 ft (1.22 m) with centerboard down |
| Hull | |
| Type | Monohull |
| Construction | Fiberglass |
| LOA | 17.88 ft (5.45 m) |
| LWL | 15.06 ft (4.59 m) |
| Beam | 7.80 ft (2.38 m) |
| Engine type | Outboard motor |
| Hull appendages | |
| Keel/board type | centerboard |
| Ballast | 450 lb (204 kg) |
| Rudder | transom-mounted rudder |
| Rig | |
| General | Fractional riggedsloop |
| I foretriangle height | 18.80 ft (5.73 m) |
| J foretriangle base | 8.30 ft (2.53 m) |
| P mainsail luff | 20.00 ft (6.10 m) |
| E mainsail foot | 9.20 ft (2.80 m) |
| Sails | |
| Mainsail area | 92.00 sq ft (8.547 m2) |
| Jib/genoa area | 78.02 sq ft (7.248 m2) |
| Total sail area | 170.02 sq ft (15.795 m2) |
The Sanibel 18 is an American trailerablesailboat, that was designed by Charles Ludwig, first built in 1982 and named for the Floridian town and island.[1][2][3][4]
The boat was built by a series of different builders under several different model names in the United States, and all are now out of production.[1][4]

The series are all small recreational keelboats, built predominantly of fiberglass, with wood trim. They have fractionalsloop rigs, transom-hung rudders and retractable centerboards. They are normally fitted with a small 2 to 5 hp (1 to 4 kW) outboard motor for docking and maneuvering.[1][2][4]
The design has sleeping accommodation for three people, with a double "V"-berth in the bow and a straight settee in the main cabin. Cabin headroom is 54 in (137 cm).[4]
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