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    • Alumistair 4 Step Aluminum Stairs
    • Alumistair 4 Step Aluminum Stairs
    • Alumistair 4 Step Aluminum Stairs

    Alumistair 4 Step Aluminum Stairs

    Type: Dock Steps
    Regular Price $1,436.50
    Item # AS4
    • Alumistair 4 Step Aluminum Stairs
    • Corrosion-resistant marine-grade aluminum
    • Standard step width: 29¼", optional wide step: 34"
    • Lightweight design — easy for two people to handle
    • Includes top-side mounting stair bracket
    • Ships LTL freight

    In Stock! Ready to ship

    In Stock! Ready to ship

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    Description
    The AS4 aluminum stairs provide a solid solution for dock-to-water, seawall-to-shore, deck-to-deck, or deck-to-waterfront access. Constructed from corrosion-resistant aluminum, these stairs are lightweight, durable, and require only two people to carry and install. Alumistair Aluminum Stairway provides a lightweight and strong stairway solution for docks, seawalls, and transitions from deck to deck or deck to waterfront. Constructed from corrosion-resistant marine grade aluminum, these stairs will add value and provide access and enjoyment for many years to come. Standard step width is 29¼" with overall width 34½"; optional wide step has 34" tread width and 36" overall width. Features include: 1-1/4" OD round tube handrails with mid-rail for added safety, non-skid stair tread depth of 7", stair riser height of 8½", and includes stair bracket for top-side mounting.
    Additional Info
    Item #: AS4
    Material: Marine Grade Aluminum
    Step Width: 29¼" standard / 34" wide
    Overall Width: 34½" standard / 36" wide
    Riser Height: 8½"
    Tread Depth: 7"
    Handrails: 1-1/4" OD round tube with mid-rail
    Shipping: LTL Freight
    Lead Time: 2–4 weeks (built to order)

    Why Choose Dockbuilders?

    With nearly 30 years of experience, Dock Builders Supply delivers dependable marine construction materials for projects of all sizes. Our products are selected with precision for durability, performance, and real-world dock applications.

    Backed by a knowledgeable team and supported with detailed estimates and drawings, we help you plan with clarity and build with confidence — from residential docks to large-scale marina installations.

    How It Works

    • Plan & Design

      Share your dock goals, and we’ll create a custom layout and materials list.

    • Select Components

      Choose durable, marine-grade parts tailored to your design.

    • Ship & Build

      We ship your supplies with secure, efficient delivery.