AED Cabinet & Mounting Requirements: ADA Height, Alarms, Signage
Buying the AED is the easy part. Mounting it is where programmes quietly fail inspection — usually for one of two reasons: it is too high to reach, or the cabinet sticks too far into a corridor. Both are ADA issues, both are cheap to get right at install, and both are expensive to fix afterwards.
The two ADA numbers that matter
1. Reach range — mount the controls no higher than 48 inches
Under the ADA accessibility standards, an element someone has to operate should sit within an unobstructed reach range of 15 to 48 inches above the finished floor. For an AED that means the device — or the cabinet handle used to get at it — should have its operable part at or below 48".
In practice we suggest mounting so the top of the AED sits around 48" and the unit itself falls comfortably in the 40–48" band. That keeps it reachable by a seated user and by a shorter adult, and it happens to be roughly chest height for most people, which helps in a panic.
The most common error we see is mounting at eye level for visibility, around 60–66". It looks better on a wall survey and it fails the reach requirement.
2. Protrusion — nothing more than 4 inches into a walkway
This is the one that catches people out. Objects mounted on a wall between 27" and 80" above the floor may protrude no more than 4 inches into a circulation path. A typical surface-mount AED cabinet is deeper than that.
So if your AED is going in a corridor, stairwell or any accessible route, a surface-mount cabinet may not comply. Your options:
- Recessed or semi-recessed cabinet — sits inside the wall cavity, so protrusion drops below the limit. The clean fix for corridors.
- Move it out of the circulation path — an alcove, a lobby wall, beside a reception desk.
- Protect the base so a cane detects the obstruction, if your architect signs that off.
Recessed installation needs wall depth and usually a contractor, so this decision is much cheaper to make before the AED arrives. If you are mounting in an open room rather than a corridor, a surface-mount cabinet is generally fine.
This is general guidance, not a code ruling
ADA figures above are the widely applied federal accessibility criteria, but your building may also be subject to state accessibility code, fire code, or a specific requirement in your state's AED statute. Confirm placement with your architect or authority having jurisdiction before cutting into a wall. Our 50-state AED law guide covers state-level requirements.
Do you need an alarmed cabinet?
No regulation we are aware of universally mandates one. It is a risk decision, and it turns on a single question: would you know if the AED went missing?
Choose an alarmed cabinet for public-access locations — schools, gyms, transit areas, retail, apartment lobbies, anywhere unsupervised. AEDs are stolen, and worse, they are borrowed and returned with the pads used. An alarm gets you a same-day answer instead of discovering the problem during a rescue. A strobe option also helps responders find the cabinet in a large or noisy space.
Skip the alarm in a staffed office, a clinical setting or a controlled industrial area where the AED is in constant sight and an alarm would mostly generate nuisance activations.
On our standard surface-mount cabinets the alarm is a low-cost option rather than a different product — typically around $10–$20 over the non-alarmed version, which makes it hard to argue against for public sites.
Cabinet, bracket, or nothing?
| Option | Best for | From |
|---|---|---|
| Universal wall bracket | Indoor, supervised, low traffic. Cheapest compliant mount. Minimal protrusion. | $59 |
| Model-specific bracket — ZOLL AED 3, Philips, LIFEPAK, HeartSine | A snug fit and a tidier install. The ZOLL AED 3 bracket includes an expiration tracking card holder — genuinely useful. | $61–$201 |
| Surface-mount cabinet | Open rooms and lobbies. Adds dust protection, visibility and an optional alarm. Check protrusion if in a corridor. | $149 |
| Semi-recessed / recessed stainless | Corridors and accessible routes, and anywhere finish quality matters. Solves the 4" protrusion problem. | $690–$814 |
| Fire-rated cabinet | Where the cabinet penetrates a fire-rated wall assembly. Ask your fire marshal — this is not optional where it applies. | $589 |
| Free-standing indoor/outdoor stand | No suitable wall — warehouses, sports fields, plazas, car parks. | $999 |
Outdoor and temperature-rated installations
This is where people damage expensive equipment without realising. Every AED has a published operating and storage temperature range, and the long-term storage range is usually much narrower than the operating range.
The LIFEPAK CR2 battery, for example, is rated to operate at 0–50°C but for long-term storage only 0–25°C. An unheated outdoor cabinet through a hot summer or a hard winter sits outside that for months. The device will probably still work — but expect real-world consumable life well short of the printed figure.
If the AED must live outdoors:
- Use a temperature-controlled outdoor enclosure, not merely a weatherproof one. Waterproof and climate-rated are different claims.
- Inspect monthly rather than relying on printed dates.
- Budget for shorter consumable life.
- Fit an alarm. Outdoor units are the most likely to walk.
Signage — cheap, and frequently the finding
Several state AED statutes require that the device's location be marked and made known, and many require notifying local EMS of its location. A cabinet tucked around a corner with no sign fails the spirit of that and often the letter.
A 3D projecting wall sign from $27 is visible down a corridor from both directions, which a flat decal is not. It is the cheapest line item in the whole installation and one of the most commonly missing.
Pair it with:
- An arrow or directional sign if the AED is not visible from the main circulation route.
- The AED's location marked on your emergency floor plan.
- EMS notification of the location — required outright in a number of states.
Anchoring: use the studs
An AED plus cabinet is a meaningful load, and it will be pulled at hard by someone under extreme stress. Anchor into studs or use appropriately rated masonry or hollow-wall fixings — drywall anchors alone are not adequate. For recessed installations, confirm wall depth and that you are not cutting into a structural or fire-rated element before you start.
A short pre-install checklist
- Operable part at or below 48" above finished floor.
- If in a corridor or accessible route: protrusion 4" or less, or use a recessed cabinet.
- Alarm fitted if the location is public or unsupervised.
- Temperature-controlled enclosure if outdoors.
- Projecting sign visible from both directions of approach.
- Anchored into structure, not just drywall.
- Location added to the floor plan and notified to local EMS.
- Fire-rated cabinet if penetrating a rated assembly.
Frequently asked questions
How high should an AED be mounted?
Mount so the operable part is within the ADA reach range of 15 to 48 inches above the finished floor — in practice, with the top of the AED at roughly 48 inches. Mounting at eye level, around 60 to 66 inches, is a common error that puts the device out of reach for seated users.
Does an AED cabinet have to be recessed?
Only where protrusion matters. Wall-mounted objects between 27 and 80 inches above the floor may protrude no more than 4 inches into a circulation path, so a surface-mount cabinet in a corridor may not comply. In an open room or lobby, surface mount is generally acceptable.
Do I need an alarmed AED cabinet?
It is not universally required, but it is strongly advisable for public or unsupervised locations. The risk is not only theft — an AED can be removed, used and returned without anyone knowing the pads are spent.
Can I keep an AED outdoors?
Yes, in a temperature-controlled outdoor enclosure rather than a merely weatherproof one. Long-term storage temperature ranges are narrower than operating ranges, so expect shorter consumable life and inspect monthly.
Is AED signage required?
Several states require the AED's location to be marked and known, and many require notifying local EMS. A projecting three-dimensional sign is far more visible along a corridor than a flat decal and is one of the cheapest parts of the installation.
Tell us where it is going
Describe the location — corridor or open room, indoor or out, staffed or public — and we will tell you which cabinet or bracket fits, and whether ADA protrusion is going to force a recessed install.
Shop AED cabinets → | AED signage → | Call 888-541-2337
Related
- AED laws & compliance — 50-state guide
- Where to place an AED: coverage & distance
- Outdoor AED cabinets
- AED pads & batteries by model
Last reviewed: 20 August 2026. Accessibility figures are general federal criteria and not a substitute for review by your architect or authority having jurisdiction. Prices are starting configurations and change.
