What Goes Between A Semicab And Sleeper
How to Choose the Right Rubber Boot Seal
You can buy rubber boot material for your special project. This seal is extruded from resilient EPDM synthetic rubber substance and contains a flexible spring steel clip for affixing to any flange. This material is sold by the foot. To find how much you require measure the length encircling your cab opening. You have 3 choices of rubber to use for waterproofing your cabs together.
Tips for Getting the Right Fit
To ascertain how much you need measure the length around your cab opening. It is essential that both openings are precisely the same size. Make sure to measure the opening before ordering. Every installation is unique.
Universal Fit: Compatible Rubber Seals for Trucks and Rigs
This rubber boot seal is widely used in vehicle sealing applications. It's works with most standard trucks. Whether you're repairing a camper shell or building a personalized rig, this seal offers broad fitment and dependable performance for your cab connection project.
What Goes Between A Semicab And Sleeper Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| EPDM Sponge Rubber Construction | Flexible, resilient seal that withstands weather and aging | Ideal for trucks, RVs, and sleeper cabs exposed to elements |
| Custom Length | Get the exact amount you need with no waste or shortages | Great for DIY box truck or custom overland builds |
| UV & Weather Resistant | Withstands sun, rain, and temperature changes without cracking | Long-term durability for vehicles stored outdoors |
Order Form
To begin your order just enter the total amount of feet of boot material you need in the appropriate box next to the item you want to order below. Check your entries then click on the "Order Now " button.
Accordion Boot - Part Number 541

The accordion boot is designed for cabs where you take out the truck window. This product works best with fiberglass shells that are 1/8" to 3/16" thick. Please note that both openings must be exactly the same size for this boot to fit properly.

$8.95 per foot
In Stock
Order 541
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Compression Boot - Part Number 540

Use this seal when you leave the rear slider window in the truck. This product works best with fiberglass shells that are 1/8" to 3/16" thick. You will also use this boot if the opening in the fiberglass shell is much larger than the opening in your truck.

$7.95 per foot
In Stock
Order 540
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Extra Wide Accordion Boot - Part Number 543

The extra wide accordion boot is designed applications where you have a large gap between the space you want to seal. This product works best with fiberglass shells or sheet metal flange that are 1/8" to 3/16" thick. Both openings must be exactly the same size for this boot to fit properly.
$11.50 per foot
In Stock
Order 543
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Accordion Boot - Ultra Wide 10" Part Number 544

The Ultra Wide 10 Inch accordion boot is designed for very wide gaps between cabs.. This product works best with fiberglass shells that are 1/8" to 3/16" thick. Please note that both openings must be exactly the same size for this boot to fit properly.
$13.90 per foot
In Stock
Order 544
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Accordion Boot 15 - Part Number 546

The Accordion Boot 15 is designed applications where you have a large gap between the space you want to seal. This product works best with fiberglass shells or sheet metal flange that are 1/8" to 3/16" thick. Both openings must be exactly the same size for this boot to fit properly.
$16.50 per foot
In Stock
Order 546
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Compression Bulb Seal - Part Number 545

Use this seal when you leave the rear slider window in the truck. This product works best with fiberglass shells that are 1/8" to 3/16" thick. You will also use this boot if the opening in the fiberglass shell is much larger than the opening in your truck.
$8.25 per foot
In Stock
Order 545
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Frequently Asked Questions
- What is an accordion boot?
An accordion boot is a flexible rubber connector that creates a weatherproof seal between two compartments, such as a truck cab and camper shell.
- Will a what goes between a semicab and sleeper reduce road noise?
Yes, the air-tight seal created by the what goes between a semicab and sleeper helps block wind noise and some road vibrations between the cab and camper.
- I have a truck that I want to install a camper shell on. The shell has a slider and I will need to remove the rear cab window. Is there a procedure when using a boot that insures a watertight seal?
To insure a water tight seal you should consider the accordion boot. In order to use the accordion boot there are a few condition that need to be met.
- 1) Both opening must be the exact same size
- 2) there must be some sort of thin wall or flange to attach the boot. This can be the fiberglass wall or pinch weld around the window opening.
- 3) Both windows will need to be removed.
