If you need to cut an opening for your box truck pass-through and want to use the accordion boot. But you find the wall’s too thick, there’s no proper flange, and the boot’s spring clip has nothing to grab. Don’t worry here is a solution that works.

The Problem You’re Dealing With

Accordion boots are made to clamp onto a flange — a thin, uniform edge the spring steel clip can bite into. If your wall is too thick or doesn’t have that edge, the boot won’t attach properly. In its native state the boot has nothing to grab.

Continue reading How to Fix the “Too Thick Wall” Problem When Installing an Accordion Boot

When installing an accordion boot, most designs rely on an embedded metal clip to grip a flange around the mounting opening. However, some vehicles or camper shells have a flat surface with no flange, making the factory clip unsuitable. This guide explains how to modify the original accordion boot by removing the embedded metal clip, replacing it with a flat vinyl insert, and securing it with an aluminum retainer. The result is a secure, weather-tight installation on flat surfaces. Note: Any modifications to the original boot will void the manufacturer’s warranty and return policy.

Continue reading How to Modify an Accordion Boot for Flat Surface Mounting (Step-by-Step Guide)

One of the functional upgrades you can make in a box truck is to create a pass-through between the vehicle cab and the cargo box. This modification provides many benefits.  These benefits include easy access between areas, better climate control or added security.

Box truck normally does not have this pass-through feature.  The question is, it possible to add one?

The answer is yes.  However, how it is created make a big difference. What I hope to do here is provide ideas that will make this possible.

Continue reading How to Add a Cab Pass-Through to a Box Truck

The fire crackled under a starlit sky, casting flickering shadows on the circle of camp chairs and half-built rigs nearby. The air smelled like pine. Just how these guys liked it.

A Simple Question Sparks a Big Idea

Jim took out his thermos, looking into the flames.

“You ever think about making a pass-through in a box truck? Like Joe’s ambulance setup?”
“Wouldn’t that be convenient to hop into the back without jumping out in the rain?”

The group nodded in agreement.

Continue reading The Walkthrough Dream: Solving the Pass-Through Challenge

When it comes to creating a pass-through between the truck cab and whatever rear cabin—whether it’s a camper, cargo box, or sleeper—an accordion boot is a solid solution for pass through access. Both accordion boot and compression boots aren’t just about sealing up gaps; they’re about making your setup more functional, weather-tight, and convenient. From overland rigs and camper topper to semi-truck sleeper and even audio blow-through builds, accordion boots have many applications. In this post, we’ll break down all the several ways these rugged connectors come in handy.

Continue reading Various Uses For Accordion Boots for Pass-Through Access

Pass-Through Access

So you’re want to create a pass though access by cutting a hole between the cab and box of your truck? Depending on your needs whether you’re building out a box truck camper, a mobile workshop, or just want to crawl through instead of walking around, pass-through cab access a very useful modification to your vehicle.

In this article I will break it down. We will cover what it is, the good, the bad, and a few creative ideas that’ll have you rethinking before you cut that opening.

Continue reading What You Need to Know Before Cutting That Hole

Every now and then I scans the Truck Camper forums to see what people are struggling with — and one issue that pops up is sealing the gap between the truck cab and the camper shell. A thread on redit recently caught my attention. The poster asked a solid question:

“I seem to be having an issue with getting my boot to stay sealed. I understand the shell I have is for a regular cab… does anyone have advice or ideas on how to reinforce my current boot?”

If you’ve ever dealt with this issue, you know exactly what they mean. A loose or poorly fitting boot doesn’t just let air in — it lets water, dust, and road noise in too. The thread had some helpful suggestions that sparked a discussion around how to get a good seal without redesigning your whole camper setup.

Continue reading Boot Seal Woes? Here’s Why Compression Rubber Flaps Might Be Your Answer

Every now and then, we come across a project from the community that’s too good not to share. we found this recently posted some photos and comments about how they created a sealed pass-through between their truck cab and camper shell using an accordion boot — and let’s just say, it’s clean, clever, and totally functional.

Here is our reaction to the post and the comments with helpful insights.

Continue reading How One DIYer Sealed His Camper Pass-Through with an Accordion Boot

Story at a Glance

• A cab-to-box pass-through improves livability, comfort, and stealth access
• An accordion boot provides a flexible, weather-sealed connection
• You’ll need to cut matching openings and fabricate a flange on the box side
• Ideal for DIY box truck campers, mobile workspaces, and vanlife-style builds
• The boot is made of EPDM rubber with a spring steel clip
• Accordion boot box truck conversion

If you’re converting a box truck into a camper, mobile office, or adventure rig, you’ve probably focused on layout, insulation, and storage — but what about access between the cab and the box?

Continue reading Accordion Boot Box Truck Conversion to Add Cab Access