LS4 Aluminum Dock Sections with Vinyl Grate Composite Decking

The LS4 Anodized Aluminum Dock System with Vinyl Grate Composite Decking is a premium residential dock solution engineered for superior strength, long-term durability, and modular flexibility. Each LS4 dock section features a full 4" anodized aluminum box frame, delivering nearly twice the aluminum content of standard F-channel docks for a noticeably stiffer, more stable platform.

Anodized tubular stringers and an integrated accessory track system allow dock accessories to be added or repositioned without drilling, preserving both structural integrity and a clean appearance. The vinyl grate composite decking provides a lightweight, slip-resistant surface that drains quickly, making it ideal for wet conditions and high-traffic lake environments. Whether building a straight dock run or a large platform, LS4 sections assemble easily while delivering commercial-grade performance in a residential dock system.

Key Features & Highlights

• 4" Anodized Aluminum Box Frame – 4" Superior rigidity and load distribution
• High Aluminum Content – Nearly double the material of standard aluminum dock frames
• 4 Available Section Sizes – 4' x 10', 5' x 10', 4' x 12' and 5' x 12'
• Integrated Accessory Track System – Mount cleats, bumpers, ladders, and accessories without drilling
• True Modular Design – Place leg pockets and section connectors at corners or along the sides
• Exceptional Lateral Stability – Integrated diagonal pocket braces stabilize the dock in all directions
• Vinyl Grate Composite Decking – Slip-resistant, fast-draining, and lets air and water pass through
• DIY-Friendly Assembly – Designed for fast, straightforward installation and easy leveling
• Low Maintenance – No rot, warping, staining, or seasonal upkeep required

While the LS4 is an upgrade from entry-level aluminum dock sections, it delivers significantly more metal and structural integrity per dollar. The thicker boxed frame with integrated accessory rail grooves adds strength even when no accessories are installed, while the built-in bracing provides excellent lateral stability in all directions. Paired with vinyl grate composite decking that sheds water, improves traction, and holds up well in demanding lake conditions, the LS4 is an excellent choice for both first-time DIY installers and experienced dock owners looking for a stronger, longer-lasting dock system.

Effortless Setup & Custom Layouts

Each LS4 dock section is designed for simple, efficient installation. After selecting the appropriate leg posts (sold separately) based on your water depth, all section-specific hardware is included. Unlike traditional docks that require strict end-to-end alignment, LS4 sections allow connectors and leg sockets to be installed along the sides of the dock. This makes building wide platforms and custom layouts significantly easier.

Sections can be leveled individually as you build, eliminating the need to align and level multiple sections at once. This modular approach saves time and reduces installation frustration.

Typical Specifications (4' x 10' Section Shown)

• Overall Size: 51" wide x 10' 5" long
• Frame: 4" anodized aluminum box frame
• Decking: Vinyl Grate Composite Decking

Included Hardware

• (2) Support/leg pockets
• (4) Diagonal pocket braces
• (2) 8" x 12" aluminum base pads (footplates)
• (2) Section connectors

The LS4 system is ideal for lakes with fluctuating water levels. Leg sockets and connectors can be moved or reconfigured as conditions change, allowing you to adjust heights, modify layouts, or expand your dock over time. The LS4 works in both UDS-style configurations, offering a clean, streamlined look with adjustable heights or near-unlimited adjustability when poles are extended.

Additional Information

• Support pockets are compatible with 2" OD aluminum dock posts (round or square) to create extension legs (dock posts sold separately)
• Shipping: Ships via LTL freight or may be picked up at our Plainwell facility once the order has been placed and confirmed

With its superior construction, long-lasting anodized materials, and flexible modular design, the LS4 Anodized Aluminum Dock Sections deliver outstanding performance, durability, and value—making them an excellent long-term investment for any lakefront property.