DIY Tonneau Cover Kit
Build your own modular truck bed cover — no over-engineering required.
This kit includes the specialty components you’ll need to make a custom tonneau cover in your own workshop. Pair it with EuroFence aluminum panels and adhesive (available at most home improvement stores) and you’ve got everything you need to slide a functional cover into your bedrails: just like our flagship model, but fully DIY.
Perfect for makers, modders, and anyone who’d rather build than buy.
What’s Included
- UHMW Slide Pieces: CNC-milled from 0.5" ultra-high molecular weight polyethylene. Includes 10 full-size connectors for joining EuroFence panels and 2 smaller slides for rear panel fitment.
- Strap Kit: For fast, easy tonneau removal. Includes mounting hardware.
- Weather Stripping: Two strips designed for a snug, low-profile seal inside the R1T bed.
Compatibility
- Designed for Rivian R1T with factory bedrails
- Intended for DIY applications using EuroFence aluminum fence panels
- Does not include aluminum panels or adhesive — sourced separately
If you're unsure about fit, tools, or panel compatibility, shoot us a message first. We’re happy to help and always curious to see your builds.
Let customers speak for us
If you have any hesitation on buying this, don't. It is well thought out and will last a lifetime. Unfortunately my R1T didn't have a cover and this is the best option in the market.
Our package arrived a little dented and although it wasn’t snug, it still worked: reached out to interrobang with the issue and photos and within 1 day sent us a replacement part and they are amazing to work with. The product is incredible and would work with them again. Hands down.
Significantly improved. Smooth mechanism. Versatility with the L-track borders. Quality materials. Great service and people!
The slide was well protected by the packaging. Somewhat heavier than I expected but seems solidly built. Instructions could be a little more clear but installation is pretty simple. Took me 20 minutes by myself. I used the spacers and washers to ensure that the thumbscrews were tight. After installation it slides smoothly and easily locks and unlocks in place.
Absolutely think this is the best addition to our truck. Had the previous version on previous truck but this one is so well made , smooth as silk operation and it gives max vertical clearance! Excellent job
And I clocked install…. 6 min 48 sec all by myself
Tunnel slide is great. No surprises as Interrobang continues to be a very high level company both conceptually and build-wise. They spend a lot of time thinking before doing and then redoing what needs to be done before public release. I admire their approach to letting us know what did not work.
Easy installation, openings from driver or
passenger side with locking device on each side is a game changer. Makes it more usable.
Fantastic Customer support and an incredible product
Amazing product!
Install was a snap!
Looks amazing and I love that it uses the
Great product for a great price. Solid build quality and fits the car perfectly
Super easy to install. So glad I went with the one that uses the existing channel, rather than having additional rails attached to the side of the truck bed.
Looks fantastic. I will miss the easy convenience of one that folds back (on my old truck), but that’s okay. Just had days of heavy rain and only a miniscule amount of water intrusion.
Thank you! Great product. I ordered theB-grade and was very pleasantly surprised - looks super!
Looks fantastic. Is very sturdy and is exactly what I wanted. Fits in super quickly easy to take on and off with one person so you don’t need to help from someone else.
Easy to store in the cargo hole, just really well done
Terrific product. Look like OEM, quality is better than OEM. Very happy.
So great! Love the tonneau cover. One of the panels arrived damaged, and they sent me another panel that day.
Would buy from them again in a heartbeat.