StairMaster is the name most gym members associate with stair climbing — from the rotating-staircase StepMill that started the category to today's console-driven Series machines and HIIT cross-training equipment. USA Fitness Equipment Depot carries new and professionally refurbished StairMaster equipment, including units co-branded with ProMaxima, all inspected by our technicians before it ships. We're based in Texas and deliver nationwide, with installation coordination available in most major metro areas.
StepMill & Gauntlet Stair Climbers
These machines use a continuous rotating staircase, so users climb real stairs at a pace they control rather than pushing against fixed resistance:
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StairMaster/ProMaxima SM5 Gauntlet StepMill — brings the original StepMill's rotating-stair motion to a compact, gym-floor-ready frame; sold new, a strong fit for HIIT circuits and firefighter or military conditioning programs
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10 Series 10G — Apex 16-inch HD Touch or Apex LED console, OverDrive Training Mode simulating Sled Push and Farmer's Carry up stairs, Landmark Challenge program, 25 resistance levels, 400 lb max user weight
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8 Series 8Gx — Apex Touch/LED consoles with OpenHub technology, ergonomically designed handrail system, 20 resistance levels, 400 lb max user weight, limited 10-year structural frame warranty for commercial use
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4 Series Gauntlet — the same rotating-stair mechanics as the 10G and 8Gx, built for light-commercial and residential-style spaces in a 29-inch-wide frame that fits through standard doorways and under 8 ft ceilings
FreeClimber Independent-Pedal Steppers
Instead of a connected rotating staircase, the FreeClimber uses two independently moving pedals, so each leg drives its own step — a design that demands more balance and core control than a fixed-stride stepper:
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FreeClimber Stepper — refurbished, with the resistance mechanism and pedals inspected before resale
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FC8 FreeClimber Stepper — a compact-footprint independent-pedal option for facilities without room for a full StepMill
HIIT Cross-Training Equipment
StairMaster's HIIT line moves beyond stair climbing into air resistance and self-powered treadmill training:
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HIIT Bike (Air Bike) — fan-wheel resistance that scales automatically with rider effort, dual-action handlebars, and a fully welded 2mm steel frame rated to handle over 1,400 lbs of force
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HIITMILL X Incline Treadmill — self-powered, fixed-incline deck driven by a magnetic braking system, a 23-inch belt, and front-mounted farmer's carry handles rated to 100 lbs of plate weight per side
Why StairMaster
StairMaster built the stair-climbing category, and that name recognition runs deep enough that one of our own product listings notes gym members ask for StairMaster by name. That reputation shows up across this collection: the Gauntlet and StepMill machines use the same rotating-stair mechanics that made the original StepMill famous, the FreeClimber trades that rotating staircase for independently moving pedals that demand more balance and core control, and the HIIT Bike's frame is fully welded rather than bolted at the joints, using 2mm steel rated to handle over 1,400 lbs of force. Our new 8 Series 8Gx carries a limited 10-year warranty on the structural frame for commercial use. Every unit in this collection, new or refurbished, is inspected by our team before it ships.
Frequently Asked Questions
What's the difference between a StepMill/Gauntlet and a FreeClimber?
StepMill and Gauntlet models use a continuous rotating staircase that you climb at a pace you control. The FreeClimber uses two independently moving pedals instead, so each leg drives its own step — that demands more balance and core control than a fixed-stride stepper.
Is this StairMaster equipment new or refurbished?
Both. The SM5 Gauntlet StepMill, 10 Series 10G, 8 Series 8Gx, and 4 Series Gauntlet are sold new. The HIIT Bike, HIITMILL X, FreeClimber, and FC8 FreeClimber are professionally refurbished, with our technicians inspecting the resistance mechanism and pedals before resale.
Do you ship StairMaster equipment outside Texas?
Yes, nationwide, with installation coordination in most major metro areas.
What warranty comes with new StairMaster console models?
Our new 8 Series 8Gx carries a limited 10-year warranty on the structural frame (coatings not included) for commercial use, with other components covered for 2 years parts and 1 year labor. Check each product page for full warranty terms by model.
