Tie Down Eng Bunks

Tie Down Engineering Bunks: Engineered for Every Launch and Retrieval

When it comes to protecting your boat during trailering and making every ramp visit as painless as possible, the bunk system on your trailer is one of the most critical — and most overlooked — components. Tie Down Engineering has built a well-earned reputation in the marine trailering space, and their lineup of boat trailer bunks reflects a genuine engineering-first approach to the problem of hull support, alignment, and easy loading.

A Full System, Not Just a Board

What sets Tie Down Engineering apart in the bunks category is the breadth of their system. Rather than offering a single product, they provide a complete ecosystem of bunk solutions designed to work together or independently, depending on what your trailer needs.

• Carpeted Bunk Boards: Tie Down's Carpeted Bunk Boards come in 2x4 configurations in three sizes — 3 ft., 4 ft., and 5 ft. lengths — and are crafted with high-quality black, all-weather marine-grade carpet that allows your boat to slide smoothly on or off during loading and unloading.
• Bunk Slicks: Tie Down's PVC molded Bunk Slicks bolt directly onto carpeted bunk boards, offering a smooth surface that allows your boat to slide on and off the trailer with ease, and are compatible with any standard bunk board. Available in two sizes, each pack contains 10 Bunk Slicks measuring 3 inches wide by 16 inches in length.
• Modular Bunk Glide-Ons: Tie Down's self-centering bunk glide-ons are manufactured with Tie Down's enhanced polyvinyl material, designed to provide a smooth surface that makes guiding your boat onto the trailer easier than ever. These feature interlocking modular sections and can accommodate 2x6 boat trailer bunk boards in various lengths up to 16 ft. or two 8 ft. boards.
• Bunk Board Guide-Ons: Tie Down's Bunk Board Guide-Ons feature 2x4 black carpeted bunk boards available in 24" or 60" lengths, ensuring proper boat alignment and protection during loading and unloading. With adjustable posts, these guide-ons can be easily mounted in multiple positions, and the U-bolts and nuts are zinc plated while the mounting hardware is galvanized for excellent corrosion protection.
• Bunk Brackets & Bolster Brackets: Tie Down's Bolster Brackets are designed to offer sturdy support for bunk maintenance during transport and storage, featuring vertical adjustment slots with a 2‑¾ inch slot length, and crafted from robust 1/4-inch steel with a hot dip galvanized finish to withstand tough marine conditions.

Built for Corrosion Resistance

Any product that regularly sees saltwater, boat ramp grime, and submerged use needs to be built tough. Tie Down's hardware is crafted with hot dip galvanized steel, built to withstand the elements and offering long-lasting protection against corrosion. Their Bunk Carpet is specifically designed to withstand the elements, resisting rot and mildew to ensure long-lasting durability. These aren't afterthoughts — corrosion resistance is baked into the engineering of every piece.

Backed by Decades of Engineering Experience

Since their establishment in 1969, Tie Down has maintained an unwavering commitment to excellence, growing from Chuck MacKarvich selling ground anchors in his garage to engineering tools and solutions for everyday workers over the past 55+ years. With over 95 patents and 7,000 products produced in and shipped from USA facilities, Tie Down specializes in exceeding expectations. That depth of manufacturing experience translates directly into bunk products that fit right, install cleanly, and perform reliably season after season. Explore the full Tie Down Engineering brand page or browse all boat trailer bunks to find the right solution for your rig.