30″ Big Mouth Step Box

CAD

Available to Order

30" wide model.
Smooth or checkerplate lid options.
50% Larger opening than traditional step boxes allows you to store more tools, more easily.
Enables the use of unused and hard-to-use frame space.
Adds useful additional storage.
Strong, lightweight aluminum construction.
High-quality automotive bulb seal for water resistance.
Step tread increases safety by reducing the possibility of slipping.

When you’ve got serious gear to carry, the 30" Big Mouth Step Box steps up. This one’s made for heavy haulers who don’t pack light. It’s big on space, easy on access. With the Big Mouth’s innovative design, the whole thing opens 50% wider, making it easy to grab what you need fast, without unloading everything. It’s wide enough to hold just about everything you need on the job and still makes smart use of frame space that’d otherwise go to waste. Built from ⅛” thick marine-grade aluminum, it’s tough, lightweight, and built to take a beating. A high-quality rubber bulb seal keeps rain, grime, and road dust out, while the step tread gives you extra grip when you're climbing up. Smooth or checkerplate lid, it’s your call. If you’re running heavy and tired of cramming, the 30" Big Mouth is the upgrade that works as hard as you do.

Finish:

Buy from a Dealer

Specs: Part #N/A

- Width

- Height

- Depth

- Weight

50% Larger Opening

Find, store, and access your equipment more quickly and easily with the Big Mouth’s 50% larger door opening.

High-Grip Step Tread

High-grip step tread looks OEM and increases safety by reducing the chance of slipping.

7 Sizes & 2 Finishes

Offered in 7 standard widths and 2 standard finishes, there’s a Big Mouth Step box for every truck.

An Iconic Innovation

Big Mouth Step Box Features

After identifying key design flaws with traditional step boxes, we completely reimagined them. Introducing the original 'Big Mouth' step box. A design you’ll recognize, without the headaches.

Photos & Videos

On the Road

Watch More on Youtube

LEFT UNANSWERED?

FREQUENTLY ASKED QUESTIONS

Find quick answers to the most common questions we receive. If you're still unsure, feel free to reach out to our support team.

Big Mouth Step Boxes are to be mounted with Iconic’s 24” Steel L-Mounting Bracket Set (PN 1900). The brackets include a variety of pre-drilled holes, and the brackets come powder coated in a black finish.

Yes. Iconic offers Big Mouth Step Boxes, both with a smooth or checkerplate lid, in the following widths: 12”, 16”, 18”, 22”, 24”, 30”, and 36”. Custom sizing can be requested but will have a lead time. We stock many different standard sizes.

No. The Big Mouth Step Box is manufactured in such a way that no bracket or shock is required to hold the door open. The door is manufactured to sit open on its own while still being able to clear a deck plate or frame rail.