If you’ve ever stepped into Planet Fitness and eyed the Smith machine, chances are you’ve asked yourself:
“How much does that bar actually weigh?”
It’s a simple question, but it stumps even experienced gym-goers. Whether you’re tracking progress, lifting safely, or just trying to impress your lifting app, knowing the Planet Fitness Smith Machine bar weight is key.
And guess what? In 2025, we finally have official answers — plus a few surprises. Let’s break it all down, no fluff, just real talk.
Quick Summary Table
| Feature | Details |
| Gym | Planet Fitness |
| Smith Machine Brand | Mostly Matrix or Hammer Strength |
| Bar Weight (Counterbalanced) | 15–20 lbs (6.8–9.1 kg) |
| Bar Weight (Unbalanced) | 35–45 lbs (15.8–20.4 kg) |
| Last Equipment Update | March 2025 |
| Safety Features | Fixed vertical track, safety stops |
| Used For | Squats, bench press, rows, etc. |
How the Smith Machine Works at Planet Fitness
The Bar Isn’t What It Seems
Unlike a free-weight Olympic barbell (which weighs 45 lbs), the Smith machine bar is counterbalanced — meaning it feels lighter than it looks.
At Planet Fitness, most Smith machines are Matrix G3 series, which use built-in counterweights that offset the bar’s resistance.
- That’s why your 45 lb squat might feel suspiciously easy.
- Depending on the model and how it’s maintained, the bar may weigh as little as 15–20 lbs.
But Wait — Why the Difference in Weight?
Planet Fitness franchises can differ in their equipment:
- Older machines (pre-2020) might not have effective counterbalance, so the bar could weigh up to 35 lbs.
- Newer models (2023–2025) are more consistent, keeping the bar around 15–20 lbs.
Pro Tip: If the bar feels feather-light, you’re likely dealing with a fully counterbalanced model.
Why It Matters – Especially in 2025
In a fitness world obsessed with data, every pound counts.
Tracking Progress
Apps like Strong and MyFitnessPal now allow 2025 users to log exact bar weights. Not knowing the Smith bar weight throws off:
- Progress tracking
- Workout planning
- Calorie burn estimation
Safety First
Using the wrong assumption about bar weight can:
- Lead to undertraining or overtraining
- Cause muscle imbalance
- Even result in injury
Planet Fitness’ fixed path design helps prevent accidents, but using accurate data makes it safer and smarter.
2025 Equipment Update – What’s New at Planet Fitness?
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As of March 2025, many Planet Fitness locations upgraded their strength areas. Here’s what changed:
- New Smith Machines installed with digital tags displaying bar weight
- Integrated with Planet Fitness App for weight logging
- Lighter bar options added for beginners and rehab users
Real-life example:
“At my local Planet Fitness in Austin, the new Smith machine clearly shows ‘Bar Weight: 20 lbs’ on a small LED screen. It’s a game-changer!” — Jason M., member since 2022
How to Measure Your Planet Fitness Smith Machine Bar Weight
Here’s a quick trick:
- Unrack the bar with no plates.
- Use a luggage scale or fish scale (yes, really).
- Hook the scale to the middle of the bar and gently lift.
- Read the weight — boom, now you know.
Or… just ask the staff! In 2025, many PF trainers are now trained to give accurate equipment details.
Real-World Weight Examples
Let’s break it down further:
| Exercise | Weight w/ Bar Only | Feels Like (Effort) |
| Smith Squat | 20 lbs | Like air! |
| Smith Bench Press | 20 lbs | Light push |
| Smith Bent Rows | 20 lbs | Great for form |
Important: Always add plates after knowing the bar weight!
FAQ
Is the Planet Fitness Smith Machine bar 45 lbs?
Nope. It’s usually 15–20 lbs, depending on the machine’s make and counterbalance.
Why does it feel lighter than the regular gym bar?
Because it is. Counterweights and a fixed track reduce the real weight and make movements easier.
Should I still log the bar weight in my workout app?
Absolutely. For accurate progress tracking, always count the bar + plates.
Can I build muscle using the Smith machine?
Yes, especially for beginners, intermediate lifters, or those recovering from injury. Just focus on form, volume, and consistency
Final Thoughts
Understanding the Planet Fitness Smith Machine bar weight might seem like a small detail, but in the fitness world, precision = progress. In 2025, with new tech upgrades, better labeling, and smarter training tools, it’s easier than ever to lift with confidence.
So next time someone at PF asks, “Hey, how much does this bar weigh?” — you’ll have the answer.