Windline Swim Platforms & Ladders
Windline Swim Platforms & Ladders: The Standard-Bearers of Marine Access
Few names carry as much weight in the world of boat boarding as Windline. Windline is the brand that literally rewrote the rulebook on marine ladder design — and their swim platforms and ladders remain the benchmark against which all others are measured. Windline first made its mark with the first telescoping boarding ladder, propelling the brand onto the specification sheets of all major boat manufacturers and quickly replacing 95% of all former designs, creating a new industry standard that continues today.
A Legacy Built in California Since 1978
Established in 1978, Windline has been a trusted name in marine hardware for over four decades. The Windline brand has grown considerably since its humble start in a garage, and today its products are designed, manufactured, and distributed out of a 75,000 sq. ft. facility in California. The company takes pride in manufacturing all its products in the United States.
A Ladder for Every Mounting Situation
Windline's swim platform and ladder lineup is one of the most comprehensive in the marine industry, engineered to suit virtually every hull configuration and boating style. Options include pontoon, stern mount, pocket, over- and under-platform, and slide mount versions, among others. Key product lines include:
- Under-Platform Telescoping Ladders (UP Series): These attach under your boat's swim platform for easy storage and use, featuring thick-walled, electropolished stainless steel construction. Steps drop quickly and easily into the water, with attached plastic treads for a safe, comfortable stepping surface.
- Over-Platform Telescoping Ladders (TDL Series): The TDL-3XP, for example, is a 3-step over-platform telescoping ladder with a hand grip — ideal for boats where under-platform mounting isn't an option.
- Transom Mount Ladders (TT Series): A straightforward solution for direct transom mounting, offering reliable access without the need for a dedicated swim platform.
- DL Sport/Diver Boarding Ladders: The DL Sport/Diver Boarding Ladder makes entering and leaving the water safe and easy, constructed from stainless steel with PVC treads that attach and detach conveniently.
- Slide Mount Ladders (SM Series): Designed for versatile positioning, these ladders slide into mounted receivers for quick deployment and stowage.
Construction Quality That Lasts
Most Windline ladders are made of high-grade 304 or 316 electropolished stainless steel, with several aluminum models also available. Stainless steel items undergo an electro-polishing process, resulting in a spectacular buffed finish that enhances both aesthetics and durability. This finish isn't just cosmetic — it provides a critical layer of corrosion resistance against saltwater, UV, and the punishing conditions of the marine environment.
Lifetime Warranty Backing
Windline stands firmly behind the hardware it makes. All Windline items, including ladder parts, come with a lifetime warranty, ensuring long-lasting performance and customer satisfaction. That level of confidence is a direct reflection of the brand's U.S.-based manufacturing standards and the decades of engineering refinement behind every product.
Whether you're upgrading an aging ladder, equipping a new build, or replacing hardware on a platform refit, Windline's swim platform and ladder collection delivers the quality, variety, and durability that boat owners and builders have relied on for nearly 50 years. Browse the full selection above to find the right fit for your vessel.