The TR800-DT3 under desk treadmill is the most affordable way to get more out of your standing desk burning more calories, reducing stress and decreasing back pain. The space-saving design makes the treadmill a great addition to your home office and the portable console is small enough to sit discretely on your desktop. Readouts include steps, time, distance, calories and speed. Start walking towards better health and productivity with the budget-conscious TR800-DT3.

Product Description


If you plan on establishing a sit-to-stand workstation and need space to fit your under desk treadmill alongside your chair, the TR800-DT3 may be the best choice. It’s 2” narrower than our other office treadmill’s and can easily be placed next to your office chair on most five or six-foot standing desks. Fully assembled out of the box simply roll it into position, plug in the console connector and power cord, and you’ll be walking and working in minutes.

  • Fully Assembled Out of the Box
  • Space-Saving Design
  • Treadmill Rolls Easily Under Standing Desks


Quiet, reliable and convenient, the TR800-DT3 is the perfect addition to your home office. This model includes many of the same features incorporated into our more expensive under desk treadmills. This includes impact-absorbing compression shocks making the treadmill easy on your joints and isolating the sound of your footsteps keeping the treadmill quiet when you walk. The TR800-DT3 includes a whisper-quiet motor geared specifically for hours of walking at low speeds. Weighing in at 120 pounds, the treadmill includes the same heavy-duty construction that continues to make LifeSpan the top rated treadmill desk brand.

  • Whisper-Quiet 2 HP Continuous-Duty Motor
  • 6 Impact-Absorbing Shocks Dampen Walking Noise
  • Supports Up to 300 lbs.


  • Integrated Step Counting
  • Intelli-Guard™ Safety Technology
  • Customizable Personal Settings

Unique LifeSpan features are designed to ensure you get the most out of your under desk treadmill. Intelli-Step accurately detects each step taken; if you’re not walking, it’s not counting even if the treadmill is running. Using this feature you can accurately incorporate your treadmill desk into your daily step count program.

Intelli-Guard ensures the treadmill only operates when you are actively walking. Step away for more than 20 seconds and the treadmill belt is automatically paused, supporting a safe environment. Finally, if you want to make any changes to the settings like increase the default walking speed from 2 MPH to 4 MPH or turn off the safety beep, it’s all customizable in personal settings.

Console: 12.5” W x 3” D x 2” H

Treadmill: 66″ L x 25″ W x 9.5″ H

Step-Up Height: Belt: 5″ Side Rails: 5.5″

Belt Size 18” W x 52″ L
Belt Type 2-Ply
Marked Belt: With a motor so quiet, treadmill belt markings help you and coworkers identify when the belt is moving.
Drive Motor: 2 HP High Torque Continuous Duty
Speed: 0.4 – 4.0 MPH (Max. Speed Can Be Set to 2.0 MPH if Desired)

Incline: Not Available: Walking at an incline while working is not recommended by ergonomists as it takes your body out of a neutral position and places strain on your back and joints.
Deck Suspension: 6 Independent Compression Shocks
Deck: 3/4″ Phenolic Deck
Side Rails: Non-Slip Plastic
Transport: Treadmill has 2 front-mounted transport wheels for easy mobility.
Max. User Weight: 300 lbs.
Product Weight: Console: 3 lbs. Treadmill: 120 lbs.

Warranty: Frame: Lifetime Motor: 3 Years Parts: 1 Year Labor: 1 Year

Additional Information