The cable will physically pass under many garage doors, and for a night or two it does the job. As a permanent arrangement it is a poor one. A closed sectional door rests its weight on one short section of cable, night after night, pressing the jacket flat against the floor — exactly the kind of repeated pinch that damages charging cables from the inside. The lasting fix is an outdoor-rated charger mounted where the car actually parks.
Key Takeaways
- A closed garage door pinches the same short section of cable every session, and the damage builds invisibly.
- The door also stops sealing, leaving a gap for weather and pests.
- Outdoor-rated wallboxes, sealed portables and pedestals all remove the doorway from the cable route.
- A flattened or marked cable is a stop-and-inspect sign — ask an electrician, not the door.
What the Closed Door Does to the Cable
A charging cable is built to flex, coil and hang. It is not built to be a door stop. The pressure lands on the same few centimetres every session, so the wear is concentrated rather than spread:
- The jacket flattens first. The outer insulation is compressed at the pinch point, and internal insulation can be stressed long before anything shows on the surface.
- Damage is quiet. A cable pinched season after session can look acceptable while the conductors inside are fatigued — the fault appears later, as errors, heat at the damaged spot, or a charger that starts refusing sessions.
- The door stops sealing. The bottom seal is shaped to meet a flat floor. Propped on a cable, it leaves a gap for rain, draughts and pests, and the cable slowly cuts into the seal itself.
- The door was not designed for it either. The threshold is a moving, weighted edge. Anything permanently parked under it is being used as part of the door mechanism.
What the Manuals Assume
Charger manuals route cables clear of pinch points, sharp edges and traffic, and door makers design the bottom seal to land on the floor — neither product expects the other in the way. So check your charger’s manual for its cable-routing instructions, and treat visible marks, flattening or a cable that runs warm at one spot as a stop-and-inspect sign. Whether a damaged cable is still safe is an inspection question for an electrician.
Better Ways to Charge a Car That Parks Outside
If the car lives outside and the charger lives in, the gap between them is the problem — so remove the gap instead of feeding the cable through it:
| Option | What it involves | Good to know |
|---|---|---|
| Outdoor-rated wallbox on the outside wall | A charger rated for outdoor mounting, fixed beside the parking spot | No cable crosses the doorway at all; the location decision is covered in inside or outside the garage |
| Portable charger used where the car parks | A weather-sealed portable plugged into an outdoor outlet near the car | The cable stays short and entirely outside; installing a home charger outside covers the outlet side |
| Pedestal by the parking spot | A post-mounted charger away from the building wall | Suits spots set back from the house; see what a pedestal charger is |
| Keep the whole session indoors | Charger inside, car inside while it charges | Costs nothing to arrange — but only works if the car can actually get in |
Two EVDANCE options fit the first two rows. The EVDANCE EV-ACT5006T 48A Level 2 wall charger is rated IP65/IP66 for outdoor mounting, hard-wired or on a NEMA 14-50 plug. For a portable, the EVDANCE EV-ACS4005T 40A NACS portable charger is IP66-sealed and delivers 9.6 kW with adjustable current.
Frequently Asked Questions
Is running a cable under the garage door against the electrical code?
Codes govern the fixed installation — the circuit, the charger, its mounting — rather than a cable you route each night, and this article makes no code claim either way. The practical issue is physical damage: if your cable shows flattening or marks at the door line, have an electrician judge it.
Is it fine for one night, at a holiday rental or a relative’s house?
Occasional, short-term use is a judgement call rather than a habit. Inspect the cable before and after, and do not leave the arrangement in place for a long stay. The damage mechanism is repetition — one careful night is a different risk from three hundred.
Can I cut a notch in the door seal for the cable?
That modifies the door and its weather seal, which is the door maker’s territory, and it only partly helps: the cable still sits under a heavy moving edge. Relocating the charger to the car’s side of the wall solves the whole problem instead.
Related Reading
- Should an EV Charger Be Inside or Outside the Garage?
- Can You Leave an EV Charging Cable Outside?
- Can a Home EV Charger Be Installed Outside?
- What Is a Pedestal EV Charger?
