attwood Wedge boat seat pedestal, 11-Inch Satin Anodized Aluminum, Wedge locking for secure, corrosion-resistant seating

The Attwood SP-28911 Wedge Pedestal Post is an 11-inch satin-anodized aluminum boat seat pedestal that delivers a secure, corrosion-resistant mounting platform with reduced seat movement for fishing, cruising, and general use.

Built for boaters who expect dependable performance in real on-water conditions, the SP-28911 combines Attwood's Wedge locking system with heavy-duty bearings and reinforced fastenings. Its satin-anodized finish resists the corrosive effects of fresh and saltwater exposure while maintaining a clean, low-glare appearance. The result is a pedestal that installs easily as a replacement or upgrade and gives anglers and recreational boat owners a stable, long-lasting seating solution.

How does the Wedge locking system improve seat stability?

The Wedge locking mechanism creates a positive engagement between the seat post and the base so the seat stays firmly in place even during rough water or quick maneuvers. This design reduces lateral and rotational play that can feel loose or unsettling when underway.

• Positive wedge engagement for a tight fit
• Reduced lateral and rotational wobble
• Consistent seating alignment for repeated removal and reinstallation

What materials and construction keep this pedestal durable in marine environments?

This post is crafted from satin-anodized aluminum that provides a protective oxide layer to slow corrosion while keeping weight low. Reinforced construction with stainless-steel rivets and robust bearing components further extend service life under repeated use.

• Satin-anodized aluminum resists rust and surface degradation
• Stainless-steel rivets and hardware for long-term integrity
• Heavy-duty bushings and bearings to withstand frequent motion

Will the SP-28911 reduce unwanted seat movement during fishing or cruising?

Yes — the combination of precision bearings and the Wedge locking system minimizes play and unwanted motion, giving anglers a more stable platform for casting and reeling. Boaters also benefit from a steadier seat while trolling or navigating chop.

• Precision bearings lower friction and movement
• Stable platform for accurate casts and safer sitting
• Consistent feel whether trolling, cruising, or anchored

How easy is it to install or replace an existing seat post with this model?

The SP-28911 is designed to be a straightforward replacement for many standard wedge-style pedestals, fitting common bases and seat plates with minimal modification. Basic hand tools and a few fasteners usually complete the swap, making it suitable for DIY upgrades or quick dockside repairs.

• Fits common wedge-compatible bases and seat plates
• Simple installation with standard tools
• Works as a direct replacement or an upgrade option

Who is this for: The Attwood SP-28911 is aimed at anglers, family boat owners, and recreational mariners who want a dependable, low-maintenance seat pedestal that stays solid under use. Choose this pedestal if you need a corrosion-resistant 11-inch post that improves seat stability, reduces wobble, and installs without a lot of hassle.