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Size guide · Double skis
Find your
double ski size.
Drag the sliders below — we'll match your height and weight to the right pair from the kids' 42-inchers all the way through to a full adult 65–68". Built from the same chart we use in the Brisbane shop.
Combo ski size calculator
Your measurements
We'll do the metric/imperial maths for you.
Tall for your weight?
Bump up to the next size — longer skis ride higher and need less throttle to plane.
Wide-body or hybrid doubles?
Easier deep-water starts. Can ride a size shorter.
Heavier for your height?
Try a wide-body pair, or step up one size for more float and a softer ride.
Recommendations are a starting point — not a hard rule. Riding style, ski technology and water conditions all matter. Not sure? Call the Brisbane shop on 07 3379 6933 and we'll match you up.
Combo Ski Size Calculator
How combo ski sizing works
Double water skis, also called combo skis or trainer skis, are sized mainly on rider weight, with height as a second check. Ability level and the boat you're towing behind also matter, but weight does most of the work.
The right length makes deep water starts easier, gives more stability at recreational speeds, and lets beginners and families progress with confidence. A ski that's too short sits low and takes more throttle to get up. A ski that's too long feels stable but is harder to turn and control.
Use the calculator above to get your starting length, then check the guidance below.
Combo ski size chart
| Group | Length | Weight | Height |
|---|---|---|---|
| Kids | 42–50" | Up to 32 kg | 107–114 cm |
| Junior | 55–59" | 35–52 kg | 145–152 cm |
| Youth | 60–64" | 52–80 kg | 152–168 cm |
| Adult | 65–68" | 55 kg and up | 168 cm and up |
When to size up
- You're taller than average for your weight. Longer skis ride higher and need less throttle to get up.
- You're a beginner doing deep water starts behind a smaller boat. More length gives you more surface area to get up on.
- You're between two bands (for example 52 kg, on the line between Junior and Youth). Size up for easier starts.
When to size down
- You're shorter than average for your weight. A shorter ski will feel more natural underfoot.
- You're on a wide body combo. Wide body skis have more surface area at a shorter length, so you can usually drop one size from the chart.
- You ski often and want a more responsive feel through turns.
Wide body vs traditional combo skis
Wide body combos are wider through the middle and tip, which makes deep water starts easier and the ride more stable. The Connelly Big Easy and Radar X-Caliber are both wide body pairs. If you're learning, or buying for a heavier skier who struggles to get up on a standard pair, wide body is the safer choice.
Traditional, narrower combos turn more easily and suit lighter or more experienced skiers, but take a little more effort to get up. The HO Excel Youth and Radar Origin Junior are traditional shapes.
Not sure which pair? See our combo water skis buyers guide for picks from first trainers to adult skis, or browse all combo water skis.
Related guides
- Buyers Guide: Best Combo Water Skis
- The Breakdown: Double Skis
- How to get up on two water skis for the first time
- How to turn on combo water skis
- How to cross the wake on combo water skis
- 5 awesome ways to teach kids to waterski
- Buyers Guide: Best Kids Slalom Skis, for the next step to one ski
- Buyers Guide: Best Kids Life Jackets