The StairMaster 4G Gauntlet is the compact member of StairMaster's stepmill range: a genuine revolving staircase in a 137 × 74cm footprint, with a recommended ceiling height of 2.44m. It exists for one reason — to put a real Gauntlet into rooms that cannot take the full-size 8Gx or 10G.
The short answer: buy the 4G if you want a proper stepmill for a home gym, hotel, residential gym or private PT studio and your ceiling is at least 2.44m at the machine's position. It costs £3,495 with the 10" LCD console or £4,995 with the 15" Apex Touch Screen. Do not buy it for a membership gym: its warranty is written for non-membership facilities running under 8 hours a day.
Key takeaways
A full revolving-staircase stepmill scaled for smaller rooms. You climb real steps that rotate beneath you, the same principle as every Gauntlet, working the glutes, quads, hamstrings and core in one low-impact movement.
It is not a stepper. Steppers move two pedals under a fixed body position; the 4G carries a staircase past you, so the movement pattern and the effort are much closer to climbing real stairs.
StairMaster positions it for premium home gyms, boutique studios, hotel suites and residential or corporate gyms — places that want a commercial-quality stepmill without a commercial-size room.
StairMaster 4G Gauntlet StepmillFrom £3,495View product →
All StairMaster machinesFrom £1,640View range →
These are the figures from our product page.
| Specification | StairMaster 4G Gauntlet |
|---|---|
| Dimensions (L × W × H) | 137 × 74 × 163cm |
| Recommended ceiling height | 2.44m (8ft) |
| Step-up height to first flat step | 36cm (14in) |
| Step surface | 27 × 46cm |
| Step height | 15cm |
| Step rate | 24–162 steps per minute, 20 levels |
| Machine weight | 158kg (348lbs) |
| Maximum user weight | 159kg (350lbs) |
| Consoles | 10" LCD or 15" Apex Touch Screen |
| Warranty | Light commercial: 10 years frame, 1 year parts and labour, 1 year wear items |
| Price | £3,495 – £4,995 |
Standard features include integrated handrail speed controls and an emergency stop, contact heart rate sensors with telemetry compatibility, Bluetooth workout tracking through OpenHub, personal cooling fans, a bottle holder and accessory rack, a USB charging port, HDMI streaming support and a powder-coated steel frame.
If the ceiling is at least 2.44m where the machine will stand, and you can get a 158kg machine to that spot, almost certainly. Those are the two checks that matter; floor area is rarely the problem.
If your ceiling is under 2.44m, no Gauntlet will fit comfortably. Our StairMaster ceiling height guide covers the alternatives, including the FC 8 Series FreeClimber, which keeps you near floor level.
A higher first step and a shallower staircase. The 4G's step-up to the first flat step is 36cm, against 23cm on the 8Gx and 10G, and each step is 15cm high rather than 20cm.
The higher first step is the one thing a new user notices: you step up onto the machine more deliberately than on a full-size Gauntlet. The handrails, with the speed controls and stop button built in, give a secure hold while you do it.
The shallower 15cm steps suit a wide range of users and keep the machine's overall height down to 163cm. The step surface is 27 × 46cm — narrower than the 56cm steps on the 8Gx and 10G, which matters more for larger users and long commercial sessions than for most home use.
The 10" LCD for most home gyms and working studios; the 15" Apex Touch Screen where the screen is part of what you are offering.
| 10" LCD | 15" Apex Touch Screen | |
|---|---|---|
| Price | £3,495 | £4,995 |
| Interface | Durable, intuitive LCD tracking every key metric | Fully interactive HD touch display |
| Connected workouts | — | Yes |
| Best for | Home gyms, back-room PT studios, constant use | Hotels, boutiques, premium residential gyms |
The £1,500 difference buys member experience, not performance — the staircase, drive and speed range are the same. On a machine in constant use, the simpler console also has less to go wrong.
10 years on the structural frame, 1 year parts and labour, and 1 year on wear items — for non-membership facilities operating under 8 hours per day. That definition decides where the 4G belongs.
| Setting | Right machine? |
|---|---|
| Home gym | Yes |
| Hotel or apartment-block gym | Yes — non-membership, controlled use |
| Corporate or workplace gym | Yes, if under 8 hours' use a day |
| Private PT studio | Yes, if under 8 hours a day; otherwise the 8Gx |
| Membership gym or leisure centre | No — choose the 8Gx or 10G |
For context, the international standard for stationary training equipment, ISO 20957-1:2024, separates equipment for private homes from equipment for training areas in clubs, hotels, studios and similar facilities. Asking which use class a machine is intended for is a more precise question than whether it is "commercial".
If the 4G is going into a business, the HSE's Provision and Use of Work Equipment Regulations apply: it must be maintained in efficient working order and inspected where safety depends on installation conditions.
Four kinds of buyer are better served elsewhere in the range.
The full three-way comparison is in our StairMaster 4G vs 8Gx vs 10G guide, and every model is covered in our complete StairMaster buyer's guide.
StairMaster 8Gx Gauntlet StepmillFrom £4,995View product →
StairMaster FC 8 Series FreeClimber£3,766 – £9,995View product →
The population evidence is encouraging. A study published in Atherosclerosis in 2023, led by Tulane University and using UK Biobank data on more than 450,000 adults followed for a median of 12.5 years, found that climbing more than five flights of stairs a day was associated with a 20% lower risk of cardiovascular disease.
That study looked at everyday stair climbing, not stepmills, and it shows an association rather than proof of cause. But it points the same way as the training evidence: short bouts of climbing are a practical, low-impact way to accumulate hard cardio work.
A home stepmill removes the practical barrier. Five flights is a couple of minutes on a 4G, and twenty minutes is a proper session.
Free UK delivery on both console options. Orders are dispatched within 5 working days, with tracking emailed within 24 hours of dispatch, and delivered across UK mainland by our delivery partners.
You can choose courier delivery ready for you to assemble, pre-assembled delivery that arrives built and ready to use, or full installation arranged on site. Installation is arranged before you order and quoted separately, so ask when you enquire.
Send us your ceiling height at the machine's position, your tallest user's height and your access route, and we'll confirm the fit before you order. Free UK delivery on both consoles.
See the StairMaster 4G → Call 0333 880 3211Height, almost every time: the ceiling first, then how tall the tallest user is. Console choice and price come later, once the room is confirmed.
The 4G is also the Gauntlet most recently bought straight through our checkout, with the 10" LCD console. That pairing — the stepmill that fits a standard room, with the console that has least to go wrong — is the one we would recommend to most home buyers.
Is the StairMaster 4G good for a home gym? Yes — it is the Gauntlet designed for that job. It needs a 2.44m ceiling rather than the 3.05m of the 8Gx and 10G, has a 137 × 74cm footprint, and its light commercial warranty covers home use. Check the ceiling at the machine's exact position and allow extra if your tallest user is much over 6ft.
How tall can I be to use a StairMaster 4G? StairMaster does not set a user height limit; the constraint is your ceiling. The 2.44m recommendation allows for a typical user on the top step. If a regular user is much over 6ft, allow more headroom, and test it by standing at the machine's position and reaching up — if your fingertips are near the ceiling, it will feel tight.
What is the difference between the 4G's 10" LCD and 15" Apex Touch Screen? The 10" LCD (£3,495) is a durable, simple console that tracks every key metric. The 15" Apex Touch Screen (£4,995) adds a fully interactive HD display with connected workouts. The staircase, drive and speed range are identical, so the £1,500 difference buys the screen experience, not a harder workout.
Can a StairMaster 4G go upstairs? It can, but check two things first. The machine weighs 158kg, so the stairs, turns and doorways on the route need to allow a heavy two-person carry, or a pre-assembled or installed delivery. And the floor it stands on needs to take 158kg plus a moving user of up to 159kg on a small footprint — have a suspended timber floor checked.
How long is the StairMaster 4G warranty? The 4G carries a light commercial warranty: 10 years on the structural frame, 1 year parts and labour, and 1 year on wear items. It applies to non-membership facilities operating under 8 hours per day, which covers home gyms, hotels, residential gyms and most private PT studios.
How fast does the StairMaster 4G go? From 24 to 162 steps per minute across 20 levels. That covers everyone from a beginner walking steadily to a fit user working hard. The 8Gx and 10G go up to 190 steps per minute, which matters mainly for very fit users on a commercial floor.
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Pro Gym Essentials — premium home and commercial gym equipment, delivered across the UK. Specifications and prices taken from our live product page, 30 September 2026.
