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Grind House Manhattan has landed in Flatiron, and it's already being called the most complete fitness setup in the neighborhood. This 38,000-square-foot facility pairs unlimited access to multiple class formats with a full recovery suite (hello, sauna facilities, steam room, plunge pools). Adored by A-listers like Marvel star Charlie Cox & Game of Thrones' Kit Harrington, and applauded by Time Out, Grind House is all about serious training paired with serious recovery.
Grab your $149 pulse (a $243 value) for a One Month Standard Manhattan Membership. You'll get access to Cycling, Boxing, HIIT, Yoga, Kettlebell, Pilates & Barre Fusion, Cardio Dance, and Turf & Tread classes; plus a Full Floor of Gym Equipment including free weights, cable machines, pin-loaded equipment, assault runners, rowers, Concept2 bikes, and kettlebells, as well as Access to the Full Recovery Suite.
Step onto the class schedule and you'll find something for every kind of training day. HIIT sessions blend weights and bodyweight work into fast-paced interval circuits designed to spike your heart rate and keep it climbing. Kettlebell classes zero in on functional strength, coaching members through cleans, swings, and snatches with real technique behind every rep. Cycling rides bring music-driven intensity on advanced SPD/Delta clip bikes, while Boxing, Yoga, Pilates & Barre Fusion, Cardio Dance, and Turf & Tread round out a roster built to keep training varied and results-driven all week long.
The studio itself matches the ambition of the programming. Grind House's Flatiron space is industrial, luxe, and unmistakably built for people who train with intention. Every class is coached with structure and energy, and the space is engineered to accommodate everyone from the novice gym-goer working through their first HIIT class to the advanced lifter chasing a new personal record. It's a rare middle ground: serious enough for committed athletes, welcoming enough for anyone ready to start.
What sets Grind House apart is what happens after the workout. Recovery here is baked into the membership. Members finish a heavy lifting session or a cycling class and head straight into the sauna, steam room, and cold plunge. It's the kind of amenity combo that typically comes at a premium elsewhere, and members consistently point to it as the difference-maker: harder training, faster recovery, and a community of people all working toward the same thing.
Whether the goal is fat loss, strength, or just a better version of your training routine, Grind House Manhattan gives you the tools (and the recovery) to actually get there...
Grind House began in 2019 when founder Ashton Bailey took over a rundown gym space with a simple idea: build a no-frills, results-first gym for people who actually wanted to work. The launch wasn't easy, as a seven-month COVID shutdown forced the original location to rebuild its membership from scratch. It was a gut-check that ended up shaping the brand's identity rather than derailing it.
Alongside co-founder Nyaine, a NASM-certified coach focused on training, mindset, and nutrition together, Bailey built Grind House around one philosophy: no fads, no gimmicks, just honest work and a community that pushes each other to improve. That approach resonated, growing into a fitness community known as much for its "banter, sweat, and competition" as for results. Members show up for the coaching, the culture, and the shared effort. That loyalty gave the team the confidence to expand into Manhattan.
The Flatiron location is Grind House's first expansion, and it goes bigger in every sense. We're talking 38,000 square feet, even larger than the original. It brings the same no-nonsense training culture with a major upgrade: a full in-house recovery suite, including sauna, steam room, and separate men's and women's cold plunge pools, all included standard rather than offered at a premium.
The Manhattan expansion is a statement about what Grind House believes fitness should look like. The brand carves out a middle ground between high-end luxury studios and those made for serious fitness lovers and beginners alike. With unlimited access to seven class formats, premium equipment, and a recovery suite, Grind House Manhattan brings its proven formula to Flatiron in fantastic fashion.
It's just the ticket you need to feel invincible, confident, and stronger than ever...
The gym offers 20+ types of classes, so take your pick from 25+ weekly sessions, offered 7 days a week from early until late. Check out the class schedule here.
Here are a few of the class styles you can enjoy as a member:
GH Cycle - The original 45-minute ride is a refined mix of using resistance and speed to create an interval based experience. The ride is athletic and rhythmic which leaves riders feeling empowered and motivated.
Hyrox - HYROX x Grind House is inspired by the global HYROX race format. This class combines functional strength movements with cardio intervals based off what you will find in a real HYROX race.
Pilates & Barre Fusion - This intense, but easy to follow class is a total body workout combining Pilates based toning and barre-inspired cardio to target smaller muscle groups, lengthen your body and maximize your fat burning potential. Using high-repetition bodyweight exercises to encourage balance, correct spinal alignment, neutral pelvic placement, and abdominal awareness.
Strength & Conditioning - This metcon-based workout involves a wide range of exercises developed to build a variety of skills with a focus on stability, strength, endurance, power, speed, agility and performance.
Kettlebell Circuits - A high intensity style workout that combines functional, compound and bodyweight exercises. Learn how to snatch, swing and clean, mastering kettlebells and working multiple muscle groups.
Power Sculpt - A dynamic total body workout that combines strength training with full body stability training. Using light weights, Pilates balls and bands, participants engage in controlled, isolated, and combined movements designed to build core strength, muscular endurance, balance, and control.
...and so much more!
Grind House Manhattan earns a stellar 4.7 Stars out of 20+ reviews on Google:
"This is the best gym I've ever been to. It's three floors and has everything you could ever think of. It has a yoga studio with Pilates options. It has a boxing area. It has two turf spots.It has two whole floors dedicated to machines, more squat racks than you could ever imagine, and then it has two saunas and two cold plunges. Super nice gym, nice facility, very big, not too crowded. Definitely recommend."
"Best gym I’ve ever been to. All new equipment with awesome sauna and cold plunges. Staff are also fantastic."
"Great gym with an amazing vibe and great amenities, I took a boxing class with Marshall and it was intense, fun, and super motivating. He brings great energy and really knows how to push you while keeping the class enjoyable. Definitely coming back."
Grind House Manhattan's Website | Google Reviews | Experience Reel
May purchase unlimited vouchers for personal use or for gifting.
Expires Friday October 30, 2026. Voucher must be activated by this date.
