1-714-622-4874 7686 Garden Grove Blvd Westminster CA 92683 Mon - Thur 9am - 1pm/ 3pm- 9pm, Fri 9am-7pm Sat 9am-3pm Sun Closed
Follow Us

Our Purpose

Our Purpose is to provide the community with a safe and healthy environment in which one can learn the art of boxing. We emphasize the importance of hard work and good sportsmanship. Our location is diverse, productive, affordable, and an accessible means of exercise and recreation that is supervised by experienced coaches. We encourage the members to improve mentally, spiritually and physically to be an all-around better person and athlete. We facilitate the process of helping people make themselves better by improving the holistic, physical, and emotional qualities of life. By following our one of a kind program, members will improve muscular strength, muscular endurance, cardiovascular endurance, flexibility, power, reflex, agility, and self-esteem. Grampas Boxing Gym is committed to providing training for men, women, and youth of all skill and fitness levels. Our gym caters to all individuals in a safe, family oriented environment.

What we offer?

  • Weight lifting area includes free weights, squat rack, bench press, + more
  • 2 full size professional boxing rings
  • Large variety of heavy bags, double end, and speed bags
  • Friendly Staff (Se Habla EspaƱol)
  • Accessible parking
  • Restrooms and changing room
  • USA Boxing sanctioned gym with experienced USA Boxing certified coaches
  • Amateur Boxing Events
  • Exhibition Events


Sign up for an intro session

Jenn J.

It can't stress how much this place has changed me mind body and soul! I truly gained a love and passion for boxing through this gym and their amazing trainers. It was hard for me to find a good gym routine, I was a cardio bunny but scared of weight lifting and the idea of a big gym. A friend told me about Grampas and how she was able to slim down yet maintain a full figure with extra help trough a trainers Booty Pump class and I was hooked. Being a female it was great to be able to learn new ways and techniques to slim down that are fun and pack a punch! GRAMMA and GRAMPA and JESSICA have my upmost respect for everything to do to create such a welcoming environment to come train. I've gained so much knowledge in the field of boxing and can only thank them for it.


Anthony M.

Love Grandpas Gym. Very family oriented vibe and everyone one is friendly. They want you to succeed here and get better.


Vanessa L.

Grampas boxing gym is a family oriented business, they have dedicated staff team. They devote their time and dedication to ensuring that everyone is well taking care of. They work hands on to help members of all ages achieve their goals. They play a part in the community and we are thankful for their contribution. They helped me get in shape, and a great stress reliever when it came to punching a bag around. I love that they have events to help our youth. It's so important nowadays because children can so easily stray. However Grampas Gym is the place to influence and change lives. Places like this are hard to come by. Huge thank you to Grampa, Grandma, and Jessica for helping everyone who comes into their lives. Keep doing what your doing!


Jessica R.

Family. Family. Family. Everyone is family here. No matter your level, age, race, or goals, you will be welcomed with open arms and great attitudes. God bless Grandma and Grandpa for making this such a safe place and loving environment. You will always be greeted here with a smile. A lot of heart lives in this newly expanded gym.


Joshua V.

This won't exactly be a review on the gym but simply for the owners. I'm a service manager at Big O Tires and I recently did some maintenance on Mrs. Rangel's vehicle. Her and her husband are by far one of the best customers I have dealt with. They invited me to their gym gave me a tour and made me feel right at home. They are really down to earth people who you can tell will do right by there customers. If you're looking for a gym with amazing ownership you must go here. Thanks again guys!


Edith O.

It's been over a year & training at this gym is one of the best decisions I've made. Walking into a gym that makes you feel so welcoming is always such a great feeling. Seeing Gramma & Grampa who are so sweet to anyone walking in makes me feel at home. Through out this year, I've been working out with both Jessica & David who have so much patience for me & always push me to go harder at the gym to accomplish my goals. Beginning with boxing to even just the basics. It's a great day going to the gym, working with two individuals who are so dedicated to what they do & making sure I feel at 100% during every move that I make.


Jorge C.

Let me tell you something, if you want to learn to box, or you already know how, but want to better your skills, or you just want to get in shape, you're in the right spot. I LOVE this gym. Everyone is super friendly, family oriented place. Every single boxer here is respectful whether they know you or not. I've seen pro boxers come through the doors every once in a while, I've seen amateur matches. Great service from Grandma and Grampa, always looking out for everyone. You don't need to go anywhere else, this is the #1 boxing gym in the county! ! Hands down! Also, great for all ages 7+


Juan B.

Excellent training no matter your age. Discipline, technique, confidence, self defense and great workout. Best gym for my 19 and 10 year old.


Ernie A.

started two weeks ago and and extremely satisfied with the boxing training I'm receiving. First of all the place is huge. Lots of room to workout definitely a plus. My workouts and training are tough but not over exerting. The place is clean, great staff. I'm already feeling more energy and not feeling fat or sluggish like before. Definitely game changer for that person who wants to make a change in life style and health. Renee is a great trainer, very knowledgeable and patient. If your serious about getting in shape go here first! Update review will be in a month.


Elizabeth C.

What an amazing experience at grampas gym! even though I ended up almost passing out from the great training session,I really enjoyed it. I'm gonna blame it on the shake I had this morning lol. I Highly recommend this place for anyone not only looking for a nice sweaty workout but also to anyone interested in getting more of the boxing technique down. Jessica did an amazing job and you can really feel her passion , dedication and positive vibes. Super welcoming environment and they're pretty well known in the boxing community. Grampa's Boxing Gym will have you coming out swinging. God bless!