FLEX

FLEX

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FLEX offers 20+ exercise classes each week in addition to a private gym with a variety of popular machines and a 24 station circuit workout. Try us for free.

FLEX.... When we opened our doors in 2010, FLEX offered the area's most challenging circuit workout, but now with our recent expansion FLEX is a mecca for people who like to get their workout on in every imaginable way. In addition to our 24 station circuit workout, we now offer a spacious functional training / free weight area for members to do their own workouts and a fully loaded cardio room

06/18/2026

POV: you walk into the gym and have no idea where to start 😵‍💫

Getting through the doors is half the battle, but not having a plan is what kills consistency. Let us help you figure out step two! Tap the link in our bio to schedule a FREE consultation with a personal trainer today!

Let’s build a routine that actually works for you.

06/15/2026

We want to express our appreciation for ✨Heather✨ This was her last week teaching classes with us. Her positive, fun, and caring nature has made a huge impact on our Flex community, and we are going to miss her energy in the gym! We wish her nothing but the best in this next chapter of her life. Drop a comment below to help us give her a warm goodbye! 🧡

06/10/2026

What better way to end your day than with Body Pump Express + CORE? 💪🏽
Join instructor Tim for the ultimate two-in-one workout!
First 30 mins: A full-body barbell workout to burn calories and tone up.
Second 30 mins: Les Mills CORE, a science-backed workout to build strength, stability, and endurance.

Tuesdays | 7:00 PM - 8:00 PM
Sign up via the link below:
https://flexcircuitgym.com/daily-fitness-calendar/

06/08/2026

New to the area? Looking for a new gym? For $25 new members can get full access to our gym and classes for 14 consecutive days! Come try us out 💪🏽

Sign up online or stop by our gym. We can’t wait to meet you!
https://flexcircuitgym.com/

06/05/2026

Reminder that our 7 day FREE trial comes with 1 free workout class too! Make sure to sign up for a class to get the full Flex experience ✨💪🏽

06/02/2026

Calling all yogis! 🧘‍♀️ Start off your weekend with vigorous, flowing sequence and finish with restful and meditative restorative postures.

Beginners and seasoned yogis are welcome 🧡

This is a great introduction to Vinyasa for those who are new to the style, and a great complement to an active practice for experienced yogis. Sign up via the link below!
https://flexcircuitgym.com/daily-fitness-calendar/

05/30/2026

🚨 FallRight Class is back! 🚨 Many of our members loved this class and we are happy to announce that Marisa will be leading another class session on June 10 at 12:30pm!

The instructor, Marisa, will teach you skills to prepare your body before a fall ever happens. Through guided instruction and specific drills, you will learn how to regain balance when it’s disrupted and how to meet the ground safely when a fall can’t be avoided, reducing injury and building trust in yourself.

Sign up via the link below:
https://flexcircuitgym.com/daily-fitness-calendar/

05/27/2026

Missed yesterday’s TRX class? Don’t worry! Sign up for Thursday’s TRX + HIIT class! 💪🏽 This class will help you build strength through super setting TRX circuits with bodyweight HIIT and calisthenics exercises. Low & No impact options. All levels welcome!

Sign up by clicking the link below!
https://flexcircuitgym.com/daily-fitness-calendar/

05/25/2026

We offer a lot of ways to improve fitness, but what exactly does each class focus on? This week, we are highlighting Strength & Conditioning! 🏋️‍♀️
If you are looking to build muscle, increase your power, and level up your routine, these are the classes you want to book:
💪🏽 BODYPUMP
💪🏽 Body Performance
💪🏽 Kettlebell Conditioning
💪🏽 TRX Circuit
💪🏽 Total Body Blast
💪🏽 BP Express + Core
💪🏽 TRX + HIIT
💪🏽 SolStrong

Click the link below to sign up!
https://flexcircuitgym.com/daily-fitness-calendar/

05/22/2026

In case you were wondering: Our hours are staying exactly the same throughout this memorial holiday weekend.

Gym hours ⬇️
M-Th: 6AM- 9PM
Fri: 6AM - 7PM
Sat-Sun: 8AM- 6PM

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Category

Address


3925 Piedmont Avenue
Oakland, CA
94611

Opening Hours

Monday 6:30am - 8pm
Tuesday 6:30am - 8pm
Wednesday 6:30am - 8pm
Thursday 6:30am - 8pm
Friday 6:30am - 7pm
Saturday 8am - 6pm
Sunday 8am - 6pm