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IronClad Martial Arts Center and Power-Up Fitness

5 ★★★★★ 23 Google reviews · Muay thai gym in Wilmington, Massachusetts

Authentic Thai Beginners welcome Kids & teens

Authentic Thai — reviews and the gym's own info point to coaching rooted in Thailand's muay thai tradition. If lineage matters to you, ask where the coaches trained and about their kru.

Plan your first class

  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth muay thai classes — built around discipline, focus, and confidence
  • Women's classes dedicated women's muay thai classes — a welcoming space to train and start out in
  • Today see hours ·
  • Website & schedule ironcladmartialarts.com — book classes and see the live schedule
  • Phone (978) 447-1225

Hours

Monday 6–11 AM, 2–9 PM
Tuesday 7–11 AM, 2–9 PM
Wednesday 6–11 AM, 2–9 PM
Thursday 7–11 AM, 2–9 PM
Friday 6–11 AM
Saturday 8–11 AM
Sunday 9–10:30 AM

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

Muay thai classes on the schedule at IronClad Martial Arts Center and Power-Up Fitness, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🌱 Beginner Muay Thai 3 mentions

“Kru John does an incredible job at explaining the move set and demonstrating so that even beginners like myself are able to understand and execute it thoroughly.”

All gyms that run beginner muay thai →

🧒 Kids Muay Thai 4 mentions

“It's one of the best place to learn self defense and get fitness training for any age from kids to adults.”

All gyms that run kids muay thai →

🛡️ Self-Defense 5 mentions

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

All gyms that run self-defense →

Other martial arts here

Muay thai gyms are usually multi-discipline. Here's what else members mention training under the same roof at IronClad Martial Arts Center and Power-Up Fitness — mined from their reviews and the gym's own info.

🦵 Kickboxing 3 mentions

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

Other gyms that also teach kickboxing →

🥋 Brazilian Jiu-Jitsu (BJJ)

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

Other gyms that also teach brazilian jiu-jitsu (bjj) →

🏟️ MMA

“You’ll learn everything from MMA to life skills that will take you to the next level in any aspect of life, thanks to Kru John.”

Other gyms that also teach mma →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want BJJ, boxing, or MMA alongside muay thai, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 23 Google reviews — in their own words.

🌱 welcoming to beginners 5 mentions

“Kru John does an incredible job at explaining the move set and demonstrating so that even beginners like myself are able to understand and execute it thoroughly.”

🤝 no-ego, friendly gym 7 mentions

“All of the classes are beginner friendly with modifications offered, but can be challenging for experts alike.”

🔥 killer workout & conditioning 3 mentions

“Killer kickboxing, barre classes, strength and conditioning, self-defense for all ages, jiu-jitsu classes taught by top notch instructors all under one roof.”

🧠 builds confidence & discipline 7 mentions

“Investing in their self-defense and self-esteem was one of the best things I could have done as a parent.”

From the reviews

Ironclad is more than a gym. It’s a family of a great people who work together to introduce a better lifestyle to their community. The owner, Kru John, helps all the students in any level to be better each session.

★★★★★ — Roya, Jul 2021

My two daughters and I have trained with Kru John for many years, and all three of us earned our black belts at Iron Clad. Early on, I often had to push my girls to attend class. Between school and other activities, they would have preferred almost anything else.

★★★★★ — Jay, Dec 2025

Wanting to get back in shape, so I did a trial period for IronClad’s Power Up Kickboxing. No hesitation when committing to the membership… As long as I live within a commutable distance, I will be a member. All of the instructors are fantastic.

★★★★★ — Shy, Aug 2021

My elementary age son has been taking classes at Iron Clad Martial Arts for 18 months now and it’s the best investment I’ve made! My son is a super active boy and struggles with focus and attention.

★★★★★ — Jules, Apr 2023

Excerpts from public Google reviews. Read all 23 reviews →

New to muay thai? Start at IronClad Martial Arts Center and Power-Up Fitness

IronClad Martial Arts Center and Power-Up Fitness comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit to start — you get in shape by training, not before it, and coaches scale the conditioning to you. Second, you won't be thrown into sparring — reputable gyms build fundamentals (stance, footwork, and the basic strikes of the "art of eight limbs") for weeks before any contact, and sparring stays optional. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

Check beginner classes on their site

Your first muay thai class at IronClad Martial Arts Center and Power-Up Fitness

Nervous about walking into a muay thai gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics on pads and bags — not fighting. Rest whenever you need to; no one will bat an eye. What to wear: shorts or athletic wear and a t-shirt; you'll train barefoot on the mats. What to bring: water and hand wraps if you have them — many gyms lend gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves, wraps, a mouthguard, and shin guards. Sparring is optional and comes later, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

Muay thai is a contact sport. Ease in, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find IronClad Martial Arts Center and Power-Up Fitness

335 Main St, Wilmington, MA01887

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.