Key West 203 FS Specifications
- LOA: 20' 3" | Beam: 8' 0" | Dry Weight: 1,900 lbs
- Draft: 12" | Deadrise: 19°
- Hull: Fiberglass, no-wood/no-rot construction
- Engine Configuration: Single outboard, 115–150 HP recommended, 200 HP maximum
- Fuel Capacity: 50 gallons
- Cover Style: T-Top boat cover
Cover Features
- Fabric Options: 9oz solution-dyed marine fabric or premium Sunbrella acrylic
- Coverage Type: T-Top cover wraps hull below hardtop; hardtop remains exposed
- Construction: Reinforced stitching, hem cord at rubrail, adjustable tie-down straps
- Durability: Solution-dyed fabric (5–7 years); Sunbrella acrylic (8–10 years)
- Fit: Custom-fitted to Key West 203 FS specifications
- Protection: UV-resistant, water-repellent, mildew-resistant, breathable
Additional information
Choose Your Cover Fabric
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
| Weight | 30 lbs |
|---|
Install
Please watch the video below for installation instructions!
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Frequently Asked Questions
Yes — this cover is pattern-cut specifically for the Key West 203 FS hull with a T-Top. It wraps the 20-foot hull below the hardtop, with fitted cutouts for the T-Top support legs.
No. The cover works with the T-Top in place. The support legs pass through fitted cutouts in the fabric.
Two options: our heavy-duty 9oz solution-dyed polyester (the most popular choice) or premium Sunbrella acrylic canvas (the best for UV resistance and breathability). Both are solution-dyed for permanent colorfastness.
Yes. The cover wraps over the entire center console area including helm electronics, gauges, switches, and the head compartment. Only the T-Top hardtop and anything mounted on top of it remain exposed above.
Yes. The cover extends past the transom and fully encloses the outboard engine. No separate engine cover needed.
The cover accommodates engines from 115 HP up to the maximum 200 HP rated for the 203 FS. You’ll select your specific motor configuration when ordering.
Yes. The T-Top cover is ideal for lift-stored boats. The adjustable tie-down straps keep the cover secure in wind, and the T-Top frame creates a natural peaked shape that sheds rain.
Yes — the 203 FS is currently in production and is the midrange model in Key West’s Family Sportsman lineup. Our cover fits all model years.
Yes. The 203 FS is a trailerable boat, and our T-Top cover is designed to stay secure during trailering as well as on lifts, at the dock, and in dry storage.
About 15 minutes with one person. Thread the T-Top legs through the fitted cutouts, drape from bow to stern, cinch the hem cord along the rubrail, and secure the tie-down straps.
Key West 203 FS T-Top Cover — The 20-Footer That Does It All, Protected
The Key West 203 FS is the midrange workhorse of the Family Sportsman lineup — a 20-foot deep-V center console with a 19-degree deadrise, 50-gallon fuel tank, and enough room for a full day of fishing or family cruising. Our custom-fitted T-Top cover wraps the entire hull below the hardtop — the center console, gunwales, seating, livewell, rod storage, and outboard engine — while leaving the fiberglass T-Top fully exposed above. At 20 feet 3 inches long with an 8-foot beam and 1,900 pounds dry, the 203 FS is a proven platform that our cover is pattern-cut to match precisely.
The T-Top’s support legs pass through fitted cutouts in the cover fabric, creating a clean transition between the covered hull and the exposed hardtop. The cover slopes downward from the T-Top frame, draping smoothly to the bow and stern. At the stern, the fabric extends past the transom to fully enclose the outboard engine. A hem cord cinches along the rubrail while the bottom edge reaches nearly to the waterline.
Engineered for the 203 FS’s Offshore Hull
The 203 FS runs a true 19-degree deadrise that cuts through chop confidently, and our cover contours to that deep-V hull shape precisely. Choose our heavy-duty 9oz solution-dyed polyester — the most popular option for its rugged durability and colorfastness — or upgrade to premium Sunbrella acrylic canvas for the best UV resistance and breathability available. Both fabrics are solution-dyed through the entire fiber, so color stays locked in permanently through years of sun, salt, and weather exposure.
Quick One-Person Installation
Installation takes about 15 minutes with one person. Thread the T-Top legs through the fitted cutouts, drape the cover from bow to stern, then secure with the included hem cord and adjustable tie-down straps. The cover stays locked in place on boat lifts, at the dock, and in dry storage — ready whenever you are.
More Protection Options
Need weather protection beyond a cover? Check out our center console curtains for additional shielding. Looking for the next FS up? See our Key West 219 FS T-Top cover. Want a similar-size bay boat? Browse our Key West 210 Bay Reef T-Top cover.
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