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4' Ultra Arm Dock Crossarm

Manufacturer: 4EAP

Item Type: Dock - Hardware

Material: Aluminum

Designed to Fit: 4' Dock Frame

Fits Post Size: 2" OD

Typically Ships: 2-5 Business Days

Our regular Price: $139.00

The 4ft Ultra Arm Crossarm is a rugged, all welded aluminum cross-arm assembly for freestanding docks. The Ultra Arm helps eliminates the "wiggle" that can be experienced with traditional round pipe cross-arms. The Ultra Arm cross-arm is designed to be used in conjunction with 2" dock post.

Crossarm assemblies make a connection between two vertical dock posts that support your dock section. With the use of the included stringer brackets, the crossarm connects directly to your existing outside dock stingers. This cross arm features a simple single set bolt for adjusting your vertical posts to the desired height.



  • PVC Post Sleeves for easier post adjustment
  • Welded aluminum construction
  • Easy to use and adjust  single set bolt design
  • Accepts 2" OD Posts (not included)




  • Tracking information will be provided via email when the shipper catalogs the pick-up
  • You can estimate your shipping charges by adding the item to your cart and entering your zip code into the shipping calculator
Manufacturer: 4EAP
SKU: 4E-4ft-UA
Quick Info
Section Width: 4'
Design: Crossarm Assembly
Style: H-Frame
Fasteners: Zinc Plated Steel
Item Type: Dock - Hardware
Material: Aluminum
Part Type: Dock Crossarm
Designed to Fit: 4' Dock Frame
Frame Spec
Frame Material: Aluminum
Support Spec
Includes Legs: No
Mounting: Bolt On
Fits Post Size: 2" OD
Typically Ships: 2-5 Business Days
Shipping Method: UPS/FedEx
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