Tubing

Marine & RV Tubing: The Backbone of On-Water Fabrication

Whether you're building a custom T-top, replacing a worn handrail, or fabricating a bimini frame, the right tubing is the foundation of any structural project on a boat or RV. Marine and RV tubing is purpose-engineered to survive environments that would quickly destroy ordinary hardware — from relentless saltwater spray and UV exposure to constant humidity and vibration underway.

Why Material Selection Matters

Not all tubing is created equal when the ocean is involved. Standard 304 stainless steel may hold up fine in freshwater, but saltwater contains chlorides that accelerate pitting corrosion and can cause premature failure. That's why marine applications typically demand marine-grade alloys. Aluminum tubing offers an excellent lightweight alternative for structural frames, towers, and rails, combining corrosion resistance with easy fabrication.

• Aluminum tubing — Lightweight and highly workable, ideal for T-tops, radar arches, canvas frames, and custom tower fabrication.
• Stainless steel tubing — Prized for strength and a polished finish; well-suited for handrails, bow rails, and structural supports where load-bearing performance is critical.
• Diameter & wall thickness — Common diameters like 7/8" and 1" correspond to standard fittings and accessories; matching these specs ensures a secure, snug assembly.

Key Applications on Boats and RVs

Marine tubing serves a surprisingly wide range of structural and functional roles aboard boats and in RV hardware builds. On boats, it forms the skeleton of bimini tops, T-tops, hardtop frames, handrails, stern rails, and bow pulpits. In RV applications, tubing is used in awning supports, grab handles, and custom hardware fabrication. Because these structures are constantly exposed to weather, vibration, and physical stress, quality tubing isn't a detail — it's a safety consideration.

What to Look for When Shopping

When selecting tubing for a marine or RV project, keep these factors in mind:

• Grade & alloy: Confirm the material is rated for your environment — saltwater demands higher-spec alloys than freshwater or inland use.
• Outer diameter (OD) compatibility: Match your tubing OD to your fittings and end caps to guarantee a proper fit.
• Wall thickness: Heavier walls add strength for load-bearing rails; lighter walls work well for canvas frames and decorative applications.
• Finish: Anodized aluminum and polished stainless resist corrosion and maintain appearance over time in high-moisture environments.

Top Brands in Marine Tubing

When it comes to trusted names in this category, Taco Metals stands in a class of its own. Founded in 1959, Taco Metals has grown into one of the marine industry's most respected fabrication suppliers, offering aluminum and stainless steel tubing specifically engineered for demanding on-water use. Their heavy-duty aluminum tubing is widely used for building towers, frames, and rails, and pairs seamlessly with their own line of anodized rail fittings and accessories — making them a true one-stop source for marine fabrication projects.