Tidewater 3100 Carolina Bay Specifications
- Length Overall (LOA): 31'1"
- Beam: 10'2"
- Dry Weight: ~7,200 lbs
- Engine: Twin outboards, max 700 HP total
- Fuel Capacity: 220 gallons
- Draft: ~16"
- Hull Type: Stepped-bottom bay boat, 15° deadrise
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 31'1" Tidewater 3100 Carolina Bay specifications
- Protection: UV-resistant, water-repellent, weatherproof
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 | 43 lbs |
|---|
Install
Please watch the video below for installation instructions!
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Frequently Asked Questions
The Tidewater 3100 Carolina Bay T-Top cover is available in 9oz solution-dyed marine fabric for reliable UV and weather protection, with upgrades to 7oz lighter-weight fabric or premium Sunbrella acrylic for maximum longevity.
Yes. This cover is pattern-cut specifically for the Tidewater 3100 Carolina Bay’s T-Top frame, with reinforced cutouts that wrap around the T-Top legs while fully covering the hull, console, and cockpit below.
Installation takes under 5 minutes even on this flagship-size hull. Drape the cover over the bow, walk it aft around the T-Top legs, and secure it with the built-in strap-and-buckle system. The hem cord tucks under the rubrail for a snug fit.
Most 3100 Carolina Bay owners keep their boat on a dock lift or in a slip due to the 31-foot length and 7,200-lb dry weight. However, if you do trailer the 3100, this cover is reinforced to stay secure during transport.
The Carolina Bay series features a stepped-bottom hull with a 15-degree deadrise optimized for shallow-water performance. At 31 feet, the 3100 can reach flats and tidal creeks that standard deep-vee hulls cannot access.
Every Tidewater 3100 Carolina Bay T-Top cover includes a 2-year manufacturer warranty covering defects in materials and workmanship under normal use.
The Tidewater 3100 Carolina Bay cover is water-resistant with a durable water repellent (DWR) finish that sheds rain and spray. The breathable fabric prevents condensation and mildew buildup underneath.
Yes. This cover fits all standard production Tidewater 3100 Carolina Bay models equipped with a factory T-Top frame. The hull dimensions remain consistent across model years.
The 9oz solution-dyed fabric is available in Navy, Black, and Charcoal. Sunbrella upgrades offer an expanded palette of colors for additional customization.
Yes. All Tidewater 3100 Carolina Bay T-Top covers ship free via standard shipping to the continental United States, with delivery typically within 1-2 business days.
Tidewater 3100 Carolina Bay T-Top Boat Cover — 31-Foot Flagship Bay Boat Protection
The Tidewater 3100 Carolina Bay is the flagship of the Carolina Bay series — 31’1” of premium bay boat with a 10’2” beam, approximately 7,200-lb dry weight, and twin outboards rated up to 700 total HP. This is where the Carolina Bay concept reaches its ultimate expression — a 31-foot bay boat that can cross open bays, run offshore in moderate conditions, and still pole across skinny-water flats thanks to the stepped-bottom hull and shallow draft. With 220 gallons of fuel, the 3100 provides multi-day range for the most ambitious inshore and nearshore expeditions. The Carolina Bay series defines what Tidewater does best, and the 3100 is the crown jewel. Browse the complete collection of Tidewater boat covers for every model in the fleet.
Flagship-Size Coverage for the Largest Carolina Bay
At 31 feet and 10’2” wide, the 3100 Carolina Bay is the largest bay boat pattern in the Tidewater collection — and one of the largest bay boats in any manufacturer’s lineup. This T-Top cover accounts for the oversized hull, twin outboard transom, center console, leaning post, expansive casting decks, livewells, rod storage, and all standard hardware. Reinforced cutouts wrap around T-Top legs, and the cover drapes over the full 31’1” hull from bow to stern. Installation takes one person under five minutes with the strap-and-buckle system, and the hem cord locks beneath the rubrail for a secure fit. The Carolina Bay series circles back to the smallest model — see the Tidewater 2210 Carolina Bay T-Top cover.
Premium Fabric for the Premium Bay Experience
The 3100 Carolina Bay spends its life in the most demanding inshore environments — salt-saturated lowcountry air, relentless sun exposure on open flats, tidal marsh humidity, and the constant salt spray that comes with running 31 feet of bay boat through coastal waters. Choose 9oz solution-dyed marine fabric for 5-7 years of proven UV and weather resistance, or upgrade to premium Sunbrella acrylic for 8-10 years of maximum protection. Both fabrics are water-repellent with a DWR finish, mildew-resistant, and breathable to prevent trapped condensation from damaging the 3100’s electronics, upholstery, and gel coat. Every seam is double-stitched and every attachment point is reinforced for the flagship-size cover area, and a 2-year manufacturer warranty covers materials and workmanship. For a different perspective on Tidewater protection, explore the Tidewater 1900 Bay center console cover.
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