This Onyx Black 2025 GMC Sierra 1500 Denali Crew Cab was transported from the Bay Area to Vertical Doors, Inc. in Lake Elsinore, California. Our team installed the VDCGMCSIER19 Vertical Door Conversion Kit on both factory front doors.

Outside the shop, Nick demonstrates how the driver’s door works for everyday cab access. The video closes with low-angle views of the finished Denali with the front doors up.

Onyx Black 2025 GMC Sierra 1500 Denali with its driver door raised outside Vertical Doors, Inc.

VDI Support Promise

We are here to help before, during, and after your purchase.

Vertical Doors, Inc. can help confirm vehicle fitment, the correct part number, and available installation options. Product and installation support is available directly from the company that manufactures the kit. Our team is also available to help with adjustments, operation, and replacement-component questions.

Do You Have to Raise the Doors Every Time You Get In and Out?

In most cases, no. Most of our Vertical Door Conversion Kits let the front door swing outward to about the first stop of the factory door check. That’s usually enough room to get in and out without raising it. When you want to go doors up, swing the door outward first, then lift it.

Watch Nick Get In and Out of the Denali

Nick gets in using the outward swing, then raises the driver’s door from the seat and steps out with it up.

Watch the Denali door demo on YouTube

Driver-side profile of the black Sierra Denali with the raised driver door and cabin opening visible.

Why We Mark the Factory Door Position

Before removing the factory hinges, mark the original door position with blue tape. When the fender goes back on, those reference marks help our team line up the door with the fender. It’s a small step that gives you a reference for the panel gaps during final adjustment.

Low rear passenger-side view of the black Sierra Denali with its front passenger door raised.

The Finished Denali

From the passenger side, the raised front door frames the cab opening. The low camera angle picks up the black multi-spoke wheels, the running board, and the reflections along the Onyx Black paint.

Front passenger-side view of the GMC Sierra Denali with its passenger door raised above the black front wheel.

GMC Sierra Vertical Door Kit and Fitment

Part number VDCGMCSIER19 retains the factory front doors and uses vehicle-specific hinges and gas shocks to change how they open. Vertical Doors, Inc. manufactures the kit in the USA.

Model Model years Fitment
GMC Sierra 1500 Denali Crew Cab 2025 Installed on the truck shown.
GMC Sierra 2019-2026 Confirm your exact model year, series, and cab style with VDI.

Listed GMC Sierra model years include 2019, 2020, 2021, 2022, 2023, 2024, 2025, and 2026.

Shop the GMC Sierra Vertical Door Kit

Product · 2019-2026 GMC Sierra Vertical Door Kit

Part number · VDCGMCSIER19

GMC Sierra Installation Options

Request installation at Vertical Doors, Inc. in Lake Elsinore, California, or check our installer directory for a shop near you. Contact us with your vehicle details before ordering or scheduling installation.

More GMC Sierra Customer Builds

See how the doors look on Binh’s candy tangerine 2008 GMC Sierra, or browse the GMC Vertical Door Kit collection to find your generation.

Join the Vertical Doors, Inc. Family

Got a Sierra with a Vertical Doors, Inc. kit? Send us photos or video and include the name or handle you’d like us to credit. Connect with other owners in the VDI Family Group or leave an honest review of your experience with our kit, installation, or team.