PS1 Parking Slider in operation, enabling two-car parking in a narrow San Francisco garage.
In San Francisco’s historic neighborhoods, garage space is at a premium — and often far less functional than it appears. Narrow footprints, tight turning radii, and preservation restrictions make it difficult, if not impossible, to modify older garages to meet modern needs.
That was the case for one San Francisco homeowner whose garage technically fit two vehicles, but in practice functioned as a one-car space. Structural changes weren’t an option due to the home’s historic designation, leaving valuable square footage unusable and daily parking frustrating.
The challenge wasn’t finding more space — it was finding a smarter way to use the space that already existed.
The Challenge: A Garage with Built-In Limitations
Like many older residential garages in dense urban areas, this space presented several obstacles:
- Tight garage dimensions and limited turning radius
- Difficulty maneuvering more than one vehicle
- Unused space along one side of the garage
- Restrictions on widening or altering the structure
The homeowner needed a solution that was simple, safe, durable — and fully compliant with historic preservation requirements.
The Solution: The PS1 Parking Slider
Carousel-USA installed the PS1 Parking Slider, a low-profile, drive-on platform that moves laterally on heavy-duty steel tracks. Once the first vehicle is parked on the PS1, it glides sideways into previously unreachable space inside the garage.

PS1 Parking Slider installed directly on the existing garage floor with no structural modifications.
With the first car repositioned, the remaining floor area becomes fully accessible — allowing a second vehicle to park comfortably alongside it.
The entire installation required no construction, no permits, and no changes to the existing structure, and was completed in under one day.
The Result: A Fully Functional Two-Car Garage
The transformation was immediate:
- Two vehicles now park safely in a garage that previously functioned as a one-car space
- Previously unused areas are fully accessible for parking and storage
- The homeowner avoided the cost, disruption, and regulatory hurdles of remodeling
- Day-to-day parking is safer, faster, and significantly more efficient
This project demonstrates how mechanical parking solutions can solve space constraints that traditional construction simply can’t — especially in dense, historic urban environments.
Why the PS1 Parking Slider Works
The PS1 Parking Slider is engineered specifically for challenging residential garages:
- Fast installation on existing flat surfaces
- High load capacity supporting up to 6,000 lbs., including most full-size SUVs
- Flexible operation with electric and manual modes
- Simple controls via push-button or remote
- Commercial-grade construction built for long-term performance
- Made in the USA, engineered and manufactured to commercial standards
Rethinking What’s Possible in Tight Spaces
For homeowners facing limited garage space — particularly in historic or urban settings — the solution isn’t always bigger. Sometimes, it’s smarter.
This San Francisco installation shows how Carousel-USA’s mechanical parking systems can unlock hidden potential in existing garages, transforming constraints into everyday convenience without altering the character of the home.