What Selden Mast Rigging Offers Sailors and Boat Owners

Selden Mast makes aluminum masts and rigging systems for sailboats, from small dinghies to large cruising yachts

Selden Mast is a Danish manufacturer that has been building mast systems since 1956. Their products include aluminum masts, booms, gaffs, and the hardware that connects sails to the boat—spreaders, tangs, and track systems. If you're replacing a mast, upgrading rigging, or building a new boat, Selden parts show up in marine catalogs and chandleries across the United States because they're engineered for durability and designed to work with standard sailboat configurations.

The company focuses on aluminum extrusions—the shaped metal tubes that form the backbone of modern sailing rigs. Their masts come in different profiles and wall thicknesses depending on the boat size and sailing style. A Selden mast for a 30-foot cruiser looks and performs differently from one built for a racing dinghy, but both follow the same manufacturing principles and quality standards.

Key Takeaways

• Selden Mast produces aluminum masts, booms, and rigging hardware designed to fit standard sailboat configurations and work with common sail systems.
• Their products range from small dinghy rigs to large cruising yacht systems, with different aluminum profiles for different boat sizes and uses.
• Selden parts are widely available through marine suppliers and chandleries in the U.S., making replacement and repair parts easier to source than some competitors.
• The company has been manufacturing rigging systems for over 65 years, which means older Selden masts may still have compatible parts available through marine retailers.

Mast Types and Aluminum Profiles

Selden offers masts in several standard profiles, each suited to different boat types and sailing conditions. Their cruising masts prioritize strength and reliability over weight savings, with thicker aluminum walls and simpler hardware. Racing masts use thinner extrusions and lighter fittings to reduce weight aloft, which improves boat speed and handling but requires more careful maintenance.

The company also makes gaff masts for traditional and classic sailing vessels, which have different load patterns than modern Bermuda rigs. Gaff systems require stronger lower sections because the gaff boom creates additional compression forces. Selden's gaff masts are built to handle those loads while maintaining the aesthetic of traditional sailing.

Boom and gaff profiles follow the same logic—thicker sections for cruising, lighter sections for racing. A boom that's too light will flex excessively and make the sail hard to trim; one that's too heavy adds unnecessary weight and cost. Selden's range lets boat owners and builders choose the right balance for their needs.

Rigging Hardware and Track Systems

Beyond the mast itself, Selden manufactures the hardware that holds everything together: spreaders that brace the mast sideways, tangs that attach shrouds and stays, and track systems that guide the sail slides. These components must align precisely with the mast profile and work with standard rigging wire and fittings.

Selden's track systems come in different widths and depths depending on the sail slide size and the forces involved. A small dinghy uses a narrow track; a large cruising yacht uses a heavier track with larger slides. The track must be strong enough to support the sail load without bending, and smooth enough that the slides move freely when trimming.

Spreaders and tangs are engineered to distribute loads evenly across the mast section. Poor spreader placement or weak tangs can cause the mast to bend unevenly, which stresses the aluminum and can lead to cracks or failure. Selden's designs account for the typical rigging angles and loads on different boat sizes, so their hardware matches the mast strength.

Compatibility with Existing Boats and Rigging

If you own a boat with a Selden mast, finding replacement parts is usually straightforward because the company has maintained consistent specifications across decades. A spreader or tang from a 1990s Selden mast may still fit a current model, or a marine supplier can cross-reference the old part number to find a compatible current version. This backward compatibility is one reason Selden parts remain popular in the used boat market.

However, not all Selden masts are interchangeable. The mast profile, wall thickness, and hardware attachment points vary by boat class and model. Before ordering a replacement mast or major rigging component, you need the exact mast model number or the boat's original specifications. Marine chandleries and Selden distributors can help match parts if you have the boat model and year.

Selden masts also work with rigging from other manufacturers—wire, blocks, and fittings from Harken, Lewmar, or other brands can be installed on a Selden mast as long as the attachment points and sizes match. This flexibility means you're not locked into Selden hardware for every component, though using matched systems often results in better performance and easier troubleshooting.

Where to Buy Selden Mast Products

Selden products are sold through marine chandleries, online boat parts retailers, and authorized Selden distributors. In South Carolina, larger marinas and sailing centers in Charleston, Beaufort, and Hilton Head often stock common Selden parts or can order them. National retailers like West Marine and Defender Industries carry Selden masts, booms, and hardware.

For a complete mast system or custom specifications, you may need to work with a marine surveyor, rigger, or boat builder who has a relationship with a Selden distributor. These professionals can help you specify the right mast profile, calculate the correct wall thickness for your boat, and ensure all hardware is properly sized and installed.

Used Selden masts and rigging are also available through boat brokers, salvage yards, and online marketplaces. If you're replacing rigging on a budget, a used Selden mast in good condition can be a cost-effective option, though you should have it inspected for cracks, corrosion, or bending before installation.

Maintenance and Care of Selden Rigging

Aluminum masts require regular inspection and maintenance to prevent corrosion and fatigue. Selden masts are anodized—coated with a protective oxide layer—but the coating can wear through in high-friction areas like spreader attachment points or where rigging wire rubs. Checking these areas annually and touching up the anodizing or applying protective grease can extend the mast life significantly.

Cracks in aluminum masts usually start at stress points: where the mast step sits on the deck, where spreaders attach, or where rigging tangs are bolted on. If you notice a crack, the mast should be inspected by a rigger or surveyor before you sail again. Small cracks can sometimes be repaired by welding or epoxy injection, but large cracks or cracks near attachment points often mean the mast must be replaced.

Freshwater rinsing after sailing in salt water helps prevent corrosion inside the mast. If the mast has internal halyards (lines that run inside the mast), moisture can accumulate and cause oxidation. Drilling small drain holes at the mast base or using desiccant packs inside the mast can help manage moisture.

Selden Mast Versus Other Manufacturers

Selden competes with manufacturers like Sparcraft, Schaefer, and Profurl, each with different design philosophies and price points. Selden is known for conservative, reliable designs that prioritize durability over cutting-edge weight savings. Their masts tend to be slightly heavier than racing-focused competitors but more forgiving for cruising sailors who value simplicity and longevity.

Sparcraft masts, by contrast, often emphasize lighter weight and performance, which appeals to racing sailors and those willing to accept more maintenance. Schaefer specializes in furling systems and integrated boom designs. Profurl focuses on roller furling gear. If you're comparing masts for a specific boat, the choice often comes down to the boat's intended use, your budget, and what hardware you already have installed.

For most cruising sailors and boat owners in South Carolina, Selden's reputation for availability and parts support makes them a practical choice. You're more likely to find a Selden replacement part at a local chandlery than a specialized racing mast from a smaller manufacturer.

Frequently Asked Questions

Can I replace a Selden mast with a mast from a different manufacturer?

Yes, but only if the new mast has the same profile, wall thickness, and attachment points as the original. The mast step, spreader brackets, and rigging tangs must align with your boat's existing fittings. A marine surveyor or rigger can determine whether a different mast will work on your boat, or you can contact the boat manufacturer for approved alternatives.

How long does a Selden aluminum mast typically last?

A well-maintained Selden mast can last 20 to 30 years or longer. Lifespan depends on how often you sail, whether you sail in salt water, and how well you maintain the anodizing and rigging. Cruising masts tend to last longer than racing masts because they experience lower peak loads, though both can fail prematurely if damaged or poorly maintained.

What's the difference between a cruising mast and a racing mast from Selden?

Cruising masts have thicker aluminum walls and simpler hardware, prioritizing strength and reliability. Racing masts use thinner extrusions and lighter fittings to reduce weight aloft, which improves speed but requires more careful handling and maintenance. Choose based on how you plan to sail—if you cruise casually, a cruising mast is the better choice.

Do I need a rigger to install a new Selden mast?

Yes, unless you have significant rigging experience. Mast installation involves stepping the mast (placing it in the mast step), attaching spreaders and rigging tangs, and tuning the rigging so the mast stands straight under load. A professional rigger ensures everything is properly aligned and tensioned, which prevents damage and extends mast life.

Where can I find the model number on my Selden mast?

The model number is usually stamped or printed on the mast near the base or on a plate attached to the lower section. If you can't find it, you can provide your boat model and year to a marine chandlery or Selden distributor, and they can help identify the correct mast specifications.