CFK Burn

Fast. Functional. Fitness.


30-minute classes that get you in, make you sweat, and get you on to the rest of your day.


Full-body workouts combine bodyweight, conditioning, and simple but effective weightlifting.


We get the heart rate up, and keep it there! High energy, high-intensity, highly effective.

CFK West (Cedar Bluff)

CFK North (Callahan Drive)


Under new ownership. Follow the Link to CFK North's new Website. 

Try 3 Classes for FREE!

You get 3 Classes to use within 7 Days to experience our community, classes, and schedule.
  • Think CrossFit, without complexity.

    CrossFit make you nervous? In Burn, we remove the complicated movements leaving just the stuff that WORKS.
  • Strong, Fast, Fit.

    Burn offers all of the benefits of CrossFit. We build strength through simple and effective weightlifting, speed through bodyweight plyometrics and gymnastics, and all-around fitness through high intensity intervals.
  • Everything you need, nothing you don't.

    Our 30-minute timeline is perfect for those pressed for time. If you want to get a quick, hard-hitting workout without spending all day in the gym, CFK Burn is just that.
  • Constantly varied, always FUN.

    The workout is always different, always challenging, and most importantly, always a blast!

CFK BURN membership


Unlimited CFK Burn Classes, Month-to-Month

With a CFK Burn membership, you get:

  • Unlimited Burn classes
  • Performance tracking on our mobile app
  • Access to both locations, CFK West & CFK North
  • Month-to-month membership with no long-term contract
  • My lower back problems are (now) non-existent!

    From swimming, softball, and basketball to volleyball, track, and golf, I was always active. I even tried tennis until I inadvertently hit my Mom in the head with the racquet while we were playing doubles (she still reminds me about it). After I left h...

    Annette Brun

  • I feel like a true athlete for the first time in my life

    After working with a couple of personal trainers, I dropped about 60 pounds and 3 pant sizes. Sure, I had a smaller frame and could do burpees for days and jog my way through 7 half-marathons (and one full marathon!), but put a barbell in my hand and I’...

    Becca Bowen

  • I feel more alive and able to take on whatever comes my way.

    Mike: "When I started Crossfit my resting pulse was about 65, Triglycerides were a bit north of 300, and Total Cholesterol was 210. BP was ok at 115/70.  Now, six months on, everything has improved!  My doc was absolutely ecstatic and amazed at the i...

    Mike & Harriet Glassman

  • Bored with my own Routines

    I had always done my own thing in the gym and followed my own routines. I would workout on my own and stop when I felt like I had done enough. It was easy to become bored and inconsistent without the accountability. Coming to CrossFit, I was not sure a...

    Danya Cushing

    1 year(s) at CrossFit Knoxville

  • Phillip Johnson's success story

    I have lost over 50 pounds since I started at CrossFit Knoxville

    CrossFit Knoxville, had a huge impact on my life. I am stronger and healthier now than I was in college. I owe the positive changes to the great coaching and supportive members of CFK....

    Phillip Johnson

  • Gerardo “Gerry” Boquin's success story

    This year has been fruitful with lots of little victories.

    My Name is Gerardo AKA “Gerry” Boquin.  I joined Crossfit Knoxville about a year or so ago. During this time, I have learned a lot about myself, particularly about the things that I can and can’t do yet.  Part of the journey has been frustrati...

    Gerardo “Gerry” Boquin