How Loud Is a Sim? Real Decibel Levels
Real Decibel Levels and Whether It's a Problem
Real decibels by ball, mat, screen type. Advice for apartments, basements, spouses with bionic hearing. Foam quieter but less satisfying.
The Short Answer
Real decibels by ball, mat, screen type. Advice for apartments, basements, spouses with bionic hearing. Foam quieter but less satisfying.
You’ve seen the YouTube videos. A guy in his garage. Clean impact screen. Nice projector. He takes a cut at a driver and it sounds like… nothing. The video audio cuts out or he’s talking over it.
Here’s the truth nobody shows you: a golf simulator makes noise. Real noise. Not “oh the neighbor might hear it” noise. More like “my wife just texted from the bedroom asking if everything’s okay” noise.
I’m not saying this to scare you. I’m saying it because the silence on simulator noise is the biggest disconnect between what YouTubers show and what owners actually experience.
The good news: you can manage it. The better news: most guys don’t need the $4,000 soundproofing solution the forums quote. They just need to know what they’re dealing with.
Let me show you the numbers.
How Loud, Exactly?
I pulled data from owner reports, forum threads, and a few guys generous enough to run decibel meter apps during their sessions.
Baseline for reference:
- Normal conversation: 50-60 dB
- Vacuum cleaner: 70 dB
- Lawn mower: 90 dB
- Rock concert: 110 dB
Golf simulator, real golf ball, basic setup (net + driving range mat):
| Sound Source | Decibels (at hitter position) | How It Feels |
|---|---|---|
| Ball strikes impact screen (driver) | 85-95 dB | Like someone hitting a couch cushion with a baseball bat |
| Ball strikes impact screen (wedge) | 75-85 dB | Firm handshake into a pillow |
| Ball hits net only (no screen) | 90-100 dB | Noticeably louder — the ball punches through |
| Club hits mat (driver) | 80-90 dB | Depends on mat quality. Good mats: thud. Cheap mats: SMACK |
| Ball bounces off enclosure frame | 95-105 dB | This is the one that wakes people up |
The headline number: a typical simulator session with real balls runs 75-95 dB at the source. That’s “vacuum cleaner” to “lawn mower” range.
Now — how that translates through walls:
- Same room, open door: Full experience. You’ll hear every shot clearly.
- Garage, door closed, house door closed: Muffled thumps. 50-60 dB in the living room. Conversation-level.
- Garage, house door open: 60-70 dB in adjacent rooms. Your spouse will definitely hear it.
- Basement, upstairs bedroom: 40-50 dB. Might hear the driver. Wedges are silent.
- Apartment, shared wall with neighbor: 50-70 dB through the wall depending on construction. This is the risky one.
What Makes It Louder
Three variables control your noise level. Everything else is minor.
1. The Ball
This is the single biggest lever you can pull.
| Ball Type | Peak dB | Sound Character |
|---|---|---|
| Real golf ball (Pro V1, Kirkland, etc.) | 85-95 | Sharp crack into screen, solid thud off mat |
| Limited-flight ball (Almost Golf, BirdieBall) | 65-75 | Soft pop, like hitting a wiffle ball |
| Foam ball (Callaway Foam, etc.) | 50-60 | Quiet tap. Barely audible through one wall |
| Rubber practice ball | 60-70 | Dull thump. Feels dead off the clubface |
Switching from real balls to limited-flight balls drops your noise by 20-30 dB. That’s the difference between “the neighbors are calling” and “nobody noticed.”
The trade-off: feel. Limited-flight balls don’t compress off the face the same way. Your wedges feel mushy. Driver feels like a marshmallow. But for late-night sessions or apartment setups, it’s the difference between having a simulator and having a problem. For budget builds pairing limited-flight balls with a Garmin R10 or Rapsodo MLM2PRO, the noise savings alone can make or break the wife-approval equation.
2. The Mat
Cheap driving range mats are the second biggest noise culprit. They’re a thin layer of nylon turf over hard rubber. Every swing sounds like you’re hitting concrete with a carpet sample on top.
Good simulator mats (Fiberbuilt, Gungho, True Strike) use suspended turf designs. The club passes through the turf and compresses foam underneath. The sound is a thud instead of a crack.
The difference: about 10 dB. That’s meaningful — 10 dB sounds like “half as loud” to the human ear.
The rule: if your mat costs less than $150, it’s loud. If it costs more than $300, it’s quiet. There’s a reason the best hitting mats guide exists.
3. The Enclosure
A proper enclosure with an impact screen is quieter than a net. This seems backwards — a screen is bigger, so it should make more noise, right?
Nope. A screen catches the ball and absorbs the energy. A net lets the ball punch through and hit whatever’s behind it — wall, garage door, drywall — which is WAY louder.
The Carl’s Place DIY enclosures with their Preferred screen material are the quietest setup I’ve found in the budget tier. The screen has a fabric backing that deadens impact noise. Hitting into it sounds like a firm handshake. Hitting into a net sounds like someone hit your garage door with a bat.
The Real Question: Will Your Wife Hear It?
This is what the forums actually want to know. The decibel numbers are interesting, but the real question is: will she come downstairs and ask what the hell you’re doing?
Here’s the honest answer:
If you’re in the garage and she’s in the living room/bedroom above: She will hear driver and woods. She will NOT hear wedges and short irons. If you schedule your driver practice when she’s out or watching something loud, you’ll never have a problem.
If you’re in the basement and she’s on the main floor: She won’t hear anything unless you’re hitting driver and the HVAC is running. Basements are naturally isolated. Add a drop ceiling with acoustic tiles and you’re basically silent.
If you’re in an apartment with shared walls: This is the hard mode. Real balls will be audible to your neighbor. Not “banging on the wall” loud, but “can hear it clearly in a quiet room” loud. Switch to limited-flight balls and you’re fine. Or talk to your neighbor and agree on hours.
If you’re in a detached garage: She won’t hear a thing. The car in between absorbs everything. This is the ideal setup for zero-noise-conflict simulator golf.
Real forum quote: “I hit balls in my detached garage while my wife watches TV 40 feet away in the house. She’s never once complained. She didn’t even know I had a simulator until I showed her.”
The Quick Fixes (Cheapest to Most Expensive)
Free: Switch to limited-flight balls for nighttime sessions. Drop from 90 dB to 65 dB for zero dollars.
$50: Buy a cheap decibel meter app and measure your actual noise through the wall. Most people discover it’s quieter than they thought. The anxiety is worse than the reality.
$100-200: Add a thick rubber mat under your hitting mat. The floor transmits more sound than you think. A 1/2“ rubber horse stall mat from Tractor Supply kills floor-borne noise completely. Check our best hitting mat guide for quiet mat picks.
$200-500: Acoustic panels on the wall between your sim and the house. Not the foam egg crate stuff — proper mass-loaded vinyl or rockwool panels. Mount them on the garage side of the shared wall.
$500-1,000: Replace your net with a proper enclosure + impact screen. The screen absorbs sound. The net amplifies it. This upgrade also improves your sim experience dramatically — better picture, no wild bounces, cleaner setup.
$1,000-4,000: Full soundproofing. Isolated floor, double drywall with green glue, acoustic sealant on every gap, solid core door. This is what the forums quote as “the real solution.” It works. But most guys don’t need it.
The Honest Take
A golf simulator is not quiet. It’s also not “call the cops” loud.
It’s about as loud as a vacuum cleaner running in your garage. If that would cause problems in your living situation, you need to plan for it. If a vacuum cleaner running in your garage sounds fine, you’re overthinking this.
The guys who complain about noise the most? They built a $500 net setup with a cheap mat and real balls, then wondered why it sounded like a construction site. A $1,500 setup with a proper enclosure, a good mat, and limited-flight balls for late nights is virtually silent to anyone not in the room.
Build it right. Pick the right ball for your situation. And if your wife has “bionic hearing” — well, that’s what the wife approval playbook is for.
Want the full quiet setup?