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ProjectPrecision-fit vehicle hardware
First platformTesla Model 3 · Model Y
StatusPre-release · designs in progress
EngFitGrid Lab · 2026

Engineered
to fit.

If a product belongs in your vehicle, it should look and fit like it was designed there from the beginning. The manufacturing technology is simply a tool. Fit is the product.

Status: pre-release First platform: Model 3 / Model Y Marketplaces: Etsy · eBay (at launch)
Fig. 1 · Part seats into the vehicle's own geometryIllustrative

Most accessories are built for every car. So they fit none of them.

Most automotive accessories are built for the broadest possible range of vehicles. That usually means compromises — generic mounting hardware, awkward fitment, unnecessary adhesives, rattles, blocked controls, and products that look added on rather than integrated.

We take the opposite approach. FitGrid Lab develops precision-fit accessories around the actual geometry of each vehicle and the equipment they are designed to support.

Universal accessory

Adapted to fit

Generic geometry, adhesive or friction, gaps everywhere. It works, until it slides, rattles, or peels off in August.

  • Mounting hardware sized for "most" vehicles
  • Adhesives and residue; nothing reversible
  • Looks added on, because it was
FitGrid Lab

Engineered to fit

Built to the cavity's real dimensions. Locates on the vehicle's own features, installs cleanly, removes cleanly, and disappears into the interior.

  • Geometry taken from the actual vehicle
  • Reversible install, no adhesives where a feature exists
  • Feels like part of the vehicle

Every product begins with the interface.

Seven questions, asked in order, before a single surface is drawn. That process produces accessories that are simpler, cleaner, and more purpose-built: developed, tested, and refined for their intended application rather than adapted from a universal product.

STEP 01ATTACHMENT

Where does it attach?

Find the feature the vehicle already has (a lip, a slot, a screw boss) and locate on it.

STEP 02CONTACT

What surfaces does it contact?

Map every touching face. Follow curves; never crush them.

STEP 03INTERACTION

How does the driver interact with it?

Reach, glance, one hand. If it blocks a control, it's not finished.

STEP 04CLEARANCE

What moves around it?

Seats travel, lids swing, cables flex. Clearance is designed, not discovered.

STEP 05TOLERANCE

What tolerances matter?

Tight where it locates, relaxed where it doesn't. Measured, then held.

STEP 06INSTALL

How does it install cleanly and reversibly?

Seat it. Remove it. Leave no trace either way.

STEP 07RESULT

Does it feel like part of the vehicle?

Not an aftermarket addition. Hardware that belongs there.

Fig. 2 · One interface, many accessoriesConcept · Illustrative

Built as a system.

We believe automotive accessories should work together. FitGrid Lab is developing modular mounting and attachment systems that allow one carefully engineered vehicle interface to support multiple accessories.

  • Instead of repeatedly attaching unrelated hardware throughout a vehicle, a common FitGrid interface supports different products.
  • Consistent fitment and design are preserved across every accessory on that interface.
  • Our range: mounting systems, organizers, storage, cable management, protective components, and modular vehicle hardware.

Hardware that
belongs there.

FitGrid Lab exists to make useful automotive hardware that feels less like an accessory and more like part of the vehicle. First parts are in design now. Tell us what you drive and we'll let you know the moment they're listed.

Precision
Fitment
Modular
Architecture
Tested &
Validated
Designed for
Your Vehicle