Picking the right size grappling dummy makes the difference between a training partner that moves and feels like a real opponent, and one that throws your technique off every time you drill. The problem is, most buyers don't realise that grappling dummies come in two distinct posture types — standing and sitting — and each one needs to be measured differently.
Get the measurement wrong and you'll end up with a dummy that's too short for realistic takedowns, too long to control on the mat, or simply doesn't match the size you thought you ordered. This guide breaks down exactly how to measure both posture types so you order the right size the first time.
Why Grappling Dummy Sizing Isn't One-Size-Fits-All
Grappling dummies aren't built like a mannequin with a single straight-line height. The internal frame and stitching determine how the dummy holds its shape once filled, and that shape changes how you should measure it.
There are two distinct posture types you'll come across when shopping for a grappling dummy: standing and sitting.
Knowing which posture type you're buying — and measuring it the right way — is the single most important step in getting an accurate size before you commit to a purchase.
Standing Dummies: Measure Straight From Head to Toe
A standing grappling dummy is built to hold an upright position, much like a person standing on their feet. Because the body sits in a straight line with no permanent bends, measuring it is straightforward.
How to Measure a Standing Dummy
- Lay the dummy flat or stand it upright.
- Measure in a straight line from the very top of the head to the bottom of the feet.
- Record this as the total length.
Since there are no fixed bends in the frame, this straight head-to-toe measurement gives you an accurate read on the dummy's total length — no adjustments needed.
Sitting Dummies: Measure Along the Curve, Not in a Straight Line
A sitting grappling dummy is a different build entirely. It's designed with permanent bends at the knees and hips, so the legs sit in a seated position rather than extending flat.
This is what makes sitting dummies so effective for ground work, guard passing, and mount training — but it also means you can't measure them the same way you'd measure a standing dummy.
Because the frame is permanently bent, a sitting dummy cannot be stretched completely straight. If you try to measure it in a straight line, you'll get an inaccurate number that doesn't reflect the size you're actually ordering.
How to Measure a Sitting Dummy
- Keep the dummy in its natural seated position — don't force the legs straight.
- Measure along the curve of the body, following the bend at the hips and the bend at the knees, from the head all the way down to the toe.
- Add up the measurement along this curved path rather than a straight line.
This curve-following method accounts for the seated posture and gives you the true length of the dummy as it will actually sit once it's on your mat.
A Quick Note on Fill
Once your grappling dummy arrives and is fully filled, the total length will come out at approximately the size you ordered.
Filling material and technique can cause very slight variation, but the measurement you take before purchase whether straight-line for a standing dummy or along the curve for a sitting dummy — is the number you should trust when comparing sizes.
Standing vs Sitting: Which Should You Choose?
| Feature | Standing Dummy | Sitting Dummy |
|---|---|---|
| Posture | Upright, straight body line | Permanent bend at hips and knees |
| How to measure | Straight line, head to toe | Along the curve, head to toe |
| Best for | Takedowns, clinch work, throws, standing grappling | Ground work, guard passing, mount and side control drills |
| Feel on the mat | Mimics a standing opponent | Mimics a grounded opponent already in a seated or guard position |
If most of your training is takedown and throw-focused, a standing dummy will give you the realistic resistance you need.
If you're drilling ground control, guard retention, or top-position pressure, a sitting dummy replicates that scenario far better.
Getting Your Measurement Right Before You Order
- Identify the posture type of the dummy you're looking at — check the product listing or ask before you buy.
- Standing dummy: measure straight from head to toe.
- Sitting dummy: measure along the curve of the hip and knee bends, from head to toe — never force it straight.
- Compare your number against the sizing listed on the product page.
- Remember: the filled dummy will come out at approximately the size you ordered, so trust your pre-purchase measurement.
Find Your Perfect Training Partner
At DAAN MMA, our grappling dummies are built for fighters who train hard and expect their gear to keep up.
Whether you're after a standing dummy for takedown reps or a sitting dummy for ground control drills, getting the size right from the start means every session on the mat feels realistic.
Browse the full range of grappling dummies at daanmma.com.au and use this guide to order the size that actually matches how you train.
FAQ
Can a Sitting Grappling Dummy Be Straightened Out for Storage?
No — the bends at the hips and knees are permanent by design. This is what gives the dummy its seated posture for ground grappling drills, so it won't lay fully flat.
Will My Dummy Be the Exact Size I Ordered Once It's Filled?
Once fully filled, the total length will come out at approximately the size you ordered, allowing for minor variation depending on how firmly it's stuffed.
How Do I Know If I Should Buy a Standing or Sitting Dummy?
Choose a standing dummy if you primarily drill takedowns, clinch work, and throws. Choose a sitting dummy if your training focuses on ground control, guard passing, or top-position work.