Description
Machine Type
Revolving StepMill
Training Range
20 Levels
Step Rate
24 to 162 SPM
User Capacity
350 lb
StairMaster 4G StepMill

StairMaster 4G StepMill for Home and Light-Commercial Training

The StairMaster 4G StepMill brings the continuous stair-climbing experience of a full-size StairMaster into a more compact design suited to home gyms, smaller training spaces, and light-commercial fitness environments. With a footprint of just 54 inches by 29 inches and an overall height of 64 inches, the 4G is especially appealing for customers who want a true revolving StepMill but have limited floor space or standard residential ceiling heights.

The StairMaster 4G features 20 training levels with a step rate from 24 to 162 steps per minute, allowing users to move from controlled steady-state climbing to demanding interval workouts. Its 350 lb user capacity and substantial frame provide the stability needed for regular training while keeping the machine considerably more compact than larger StairMaster Gauntlet models.

Best for: Premium home gyms, basement gyms, personal training studios, apartment and condominium fitness rooms, hospitality fitness spaces, and smaller commercial facilities.
StairMaster 4G StepMill console

A Compact StairMaster With a True Revolving Staircase

Unlike pedal-style stair steppers, the StairMaster 4G StepMill uses continuously rotating stairs to create a more natural climbing motion. The 10-inch by 18-inch step surface provides room for secure foot placement, while the handrails offer support during steady-state climbing and higher-intensity training.

The 4G's compact dimensions are one of its biggest advantages. At 64 inches high with a 14-inch step-up height, StairMaster recommends an 8-foot ceiling, making the StepMill 4G much easier to accommodate in residential environments than many larger stair-climbing machines.

Users can adjust the climbing pace across 20 levels, from 24 to 162 steps per minute, making the StairMaster 4G suitable for cardiovascular conditioning, lower-body training, interval workouts, and everyday fitness.

StairMaster 4G StepMill in a compact training space

Full StairMaster Training in a Smaller Footprint

The StairMaster 4G StepMill is designed for buyers who want the feel and training challenge of a revolving staircase without dedicating the space required by a larger Gauntlet-style machine.

Its compact footprint makes it particularly well suited to residential gyms, smaller fitness rooms, and locations where ceiling height is a consideration. At the same time, its durable construction and 350 lb user capacity make it appropriate for light-commercial applications where space efficiency and dependable performance are important.

For customers searching for a compact StairMaster, a small StepMill for a home gym, or a stair-climbing machine that can fit under an 8-foot ceiling, the StairMaster 4G provides a practical combination of space efficiency and challenging cardio training.

Includes free delivery. The Fitness Outlet is an authorized StairMaster dealer, ensuring full manufacturer warranty support on every purchase.

Specifications
Specifications data
Feature Details
Footprint (L x W) 54” x 29” (137 x 74 cm)
Height 64” (163 cm)
Recommended Ceiling 8’ (244 cm)
Step Height 6” (15 cm)
Step-Up Height 14” (36 cm) to first step
Step Surface 10” x 18” (25 x 46 cm)
Step Rate 24–162 SPM (20 levels)
Max User Weight 350 lbs (159 kg)
Product Weight 348 lbs (158 kg)
Frame Powder-coated steel
Power Requirements 12 V / 5 Amp power supply
Warranty
Warranty data
Residential

Frame: 10 Years
Parts: 10 Years
Motor & MCB: 5 Years Parts & Labor
Labor: 3 Years
Wear Items: 1 Year

Light Commercial

Frame: 10 Years
Parts: 5 Years
Labor: 2 Years
Wear Items: 1 Year

Full Commercial

Frame: 10 Years
Parts: 2 Years
Labor: 1 Year
FAQs
Frequently asked question

Is the StairMaster 4G StepMill a good choice for a home gym or smaller fitness space?

Yes. The StairMaster 4G StepMill is especially well suited to home gyms and smaller fitness spaces because of its compact 54 inch by 29 inch footprint, 64 inch overall height, and recommended 8-foot ceiling clearance. It is also appropriate for light-commercial settings such as personal training studios, apartment fitness rooms, and hospitality facilities.

What warranty comes with the StairMaster 4G StepMill?

Warranty coverage varies by application. Residential coverage includes 10 years on the frame, 10 years on parts, 5 years on motor and MCB parts and labor, 3 years on labor, and 1 year on wear items. Light-commercial and full-commercial coverage are listed in the warranty section on this page.

What ceiling height is recommended for the StairMaster 4G StepMill?

StairMaster recommends an 8-foot ceiling for the 4G StepMill. With an overall machine height of 64 inches and a 14-inch step-up height, the 4G is easier to accommodate in residential gyms, basements, and other rooms where ceiling height can limit larger stair-climbing machines.

How is the StairMaster 4G StepMill different from a standard stair stepper?

The StairMaster 4G StepMill uses a continuously rotating staircase, while many standard stair steppers use independent pedals that move up and down. The revolving stairs create a climbing motion that more closely resembles walking up an actual staircase.

Who is the StairMaster 4G StepMill best suited for?

The StairMaster 4G StepMill is a strong choice for residential users who want challenging stair-climbing cardio in a more compact machine, as well as personal training studios, apartment and condominium fitness rooms, hospitality facilities, and other light-commercial environments. Its 20 training levels and 24 to 162 steps-per-minute range support both steady-state workouts and interval training.

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