MaxLoc 4' Fixed Width Crossmember Assembly for Dock Systems

The MaxLoc 4' Crossmember Assembly is one of the strongest, most reliable dock support solutions available for freestanding dock systems. Designed for both homeowners and professional installers, this heavy-duty crossarm delivers superior stability compared to traditional clamp-style crossmembers.

Constructed from a rugged 2" x 4' aluminum extrusion, this system features a solid anodized aluminum end clamp and pre-attached stringer connection plates for fast, secure installation. Unlike older clamshell-style clamps that can loosen, stretch, or wobble over time, the MaxLoc system provides a tight, slip-resistant connection that stays secure season after season.

Installation is simple and efficient—just tighten the clamps around a 2" OD dock post using a 5/16" hex (Allen) wrench. Once secured, the crossmember locks firmly in place, allowing for easy height adjustments and long-term durability with minimal maintenance.

This 4' fixed-width crossmember is ideal for upgrading existing docks or building new layouts with improved strength and stability.

Key Features:

• Heavy-duty 2" x 4' aluminum extrusion for strength and durability
• Solid anodized aluminum end clamps for secure, non-slip performance
• Includes stainless steel and brass fasteners for corrosion resistance
• Pre-attached stringer connection plates for easy installation
• Fits standard 2" OD dock posts (posts not included)
• Significantly more stable than traditional clamshell-style dock clamps
• Lightweight design allows for easy one-person installation and adjustment

Customize Your Dock Setup:

To complete your dock support system, you can pair the MaxLoc crossmember with additional components based on your shoreline conditions and installation needs. Options include:

• Dock posts (2" OD) for vertical support
• Base pads 
• Augers 

These components can be added to create a complete, secure, and long-lasting dock support system tailored to your specific environment.

Compatibility & Sizing:

• Designed for standard dock widths
• Interior stringer bracket spacing: 48.25"
• Ideal for upgrading existing aluminum dock systems or new installations

Note: Vertical support posts, base pads, and augers are not included and are sold separately.

Why Choose MaxLoc Crossmembers?

MaxLoc crossarms are engineered to outperform traditional dock hardware by eliminating common issues like clamp slippage, wobble, and frequent replacement. Their precision-machined clamping system ensures long-term performance, making them a smart investment for anyone looking to improve dock stability and reduce maintenance over time.

Shipping & Ordering Information:

• Shipping rates can be calculated directly in your cart by entering your zip code
• Tracking information will be provided once your order has been processed and picked up by the carrier