Best Dock Boxes Under $800 Ranked

8 dock boxes at a checked price under $800.

Last updated: November 9, 2026

Under $800 buys any polyethylene dock box, including full-length ones, or a small fiberglass box. Large fiberglass boxes start just under $800 and most cost more than $1,000.

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Best Dock Boxes Under $800: Under 18 cu ft

  1. Taylor Made Stow 'n Go Poly Small
    #1 of 53.0Full review

    A low-cost polyethylene box for light gear on a dock or patio. Don’t plan on using it as a seat.

    Amazon $351.48
    $351.48
    13.6 cu ftPolyethylene-
  2. DoxBox Fiberglass Triangle
    #2 of 53.0Full review

    A fiberglass corner box with vents and soft-close arms, for less than Taylor Made’s corner model.

    Amazon $699
    $699
    13.1 cu ftFiberglassGas supports
  3. Taylor Made Stow 'n Go Low-Profile Medium
    #3 of 52.8Full review

    A low fiberglass box for a tight slip where a taller box would be in the way. It costs a lot for the space it gives.

    Amazon $768.99
    $768.99
    10 cu ftFiberglassGas supports
  4. DoxBox Fiberglass Rectangle 47"
    #4 of 52.7Full review

    A tall, narrow fiberglass box that fits a slim strip of dock. The listing leaves out the lock and lid details.

    Amazon $699
    $699
    14.8 cu ftFiberglass-
  5. Taylor Made Stow 'n Go Poly Triangle
    #5 of 52.7Full review

    A polyethylene corner box that fits a dock gusset and can sit around a power pedestal, for much less than fiberglass.

    Amazon $649.71
    $649.71
    16.7 cu ftPolyethylene-

Best Dock Boxes Under $800: 18 cu ft and up

  1. Lifetime Marine Dock Box 130 gal
    #1 of 34.2Full review

    The value pick: a plastic dock bench box with a 10-year warranty for a fraction of fiberglass prices.

    Lifetime $314.99
    $314.99
    22.1 cu ftPolyethyleneSpring hinge
  2. Taylor Made Stow 'n Go Poly Large
    #2 of 33.5Full review

    A large, low-cost polyethylene dock box from the leading fiberglass maker. Strong value if you won’t sit on it.

    Lippert (Taylor Made) $502.95
    $502.95
    28.3 cu ftPolyethylene-
  3. DoxBox Fiberglass Rectangle 70"
    #3 of 33.3Full review

    A 6 ft fiberglass box with vents and soft-close arms for less than a Taylor Made of the same length.

    Amazon $799
    $799
    19.7 cu ftFiberglassGas supports