Cargo Floor Riser for Rivian R1S

Cargo Floor Riser for Rivian R1S

The OpenSourceEV Parts Cargo Floor Riser fixes one of the most overlooked annoyances in the Rivian R1S cargo area. When the load floor is set to its upper position, it sits flush with the third row seats but slopes downward toward the rear of the vehicle. This three-piece kit corrects that slope and gives you a truly level load floor. Designed by Kelvin Lee, manufactured and supported by OpenSourceEV, and tested in Rivian vehicles.

Folds flat for easy storage when not in use. No tape, no adhesives, no permanent modifications.

What's Included

• Left side riser assembly
• Right side riser assembly
• Center riser assembly
• 2x M6 1.0 x 55mm black steel flathead Allen bolts
• 2x M6 black steel square nuts

Key Features

• Levels the upper-position cargo floor from front to rear -- no more slope toward the tailgate.
• Three-piece design assembles with a 4mm Allen wrench. Tighten until snug.
• Places in under 60 seconds with no tape, adhesives, or permanent modifications.
• Folds flat for storage when not in use.
• Printed from ASA for UV resistance and temperature resilience up to 300 degrees F.
• Manufactured, sold, and warranty-supported by OpenSourceEV Parts. Made in the USA.
• Open source design available on Printables.
• Fits Rivian R1S. Not compatible with the Canvas Back.

Installation

1. Assemble the three riser pieces using the included M6 bolts and square nuts. Tighten with a 4mm Allen wrench until snug.
2. Set the R1S load floor to the upper position.
3. Place the assembled riser at the rear of the cargo area. No tape or fastening required.
4. To store, fold flat and set aside.