How to Choose Surfboard Volume for Your Level

A board can look perfect on the rack and still feel hopeless once you are out back. If you are asking how to choose surfboard volume, start with the litres, but do not stop there. The right amount of foam should help you paddle into more waves, pop up with control and keep progressing in the conditions you actually surf - not just the clean, overhead days shown in board adverts.

Volume is one of the quickest ways to narrow down a surfboard choice. It is especially useful when comparing boards with different lengths, widths and shapes. But a 35-litre groveller and a 35-litre performance shortboard will not paddle, catch waves or turn in the same way. Your weight, fitness, experience, local break and the board’s outline all matter.

What surfboard volume actually means

Surfboard volume is the amount of space inside a board, measured in litres. More litres generally means more buoyancy. A higher-volume board sits higher in the water, supports more of your body weight and makes paddling and wave-catching easier.

That does not automatically mean more volume is always better. Too much foam can make a board harder to duck dive, slow to turn from rail to rail and less responsive on a steep wave face. Too little volume, meanwhile, can leave you battling to catch waves, tiring early and standing up only on the occasional perfect one.

Think of volume as the board’s engine for paddling and wave entry. Shape determines much of the handling once you are up and riding.

How to choose surfboard volume by weight and ability

Your body weight is the sensible starting point, but ability decides where you sit within a volume range. A fit surfer who has spent years riding a shortboard may be comfortable on fewer litres than a newer surfer of the same weight. Equally, a beginner with good balance from skating or snowboarding still benefits from extra foam while learning to paddle, position and read waves.

As a rough guide, divide the board volume by your weight in kilograms. The result gives you a litres-per-kilogram figure that helps compare options.

For example, a 70kg surfer on a 42-litre board is riding 0.6 litres per kilogram. That is generous volume for a beginner or a surfer choosing an easy-going mid-length. The same 70kg surfer on a 28-litre shortboard is at 0.4 litres per kilogram, a more realistic range for an experienced surfer who is confident in the line-up.

These ranges are useful guideposts rather than rules:

• New surfers: around 0.7 to 1.0 litres per kilogram, usually in a foam board, mini mal or longboard shape.
• Beginners who can already catch and trim waves: roughly 0.55 to 0.75 litres per kilogram, often a wide mini mal or stable mid-length.
• Improvers: around 0.45 to 0.6 litres per kilogram, depending on board type, fitness and how consistently they surf.
• Confident shortboard surfers: often 0.32 to 0.45 litres per kilogram, with the final choice depending heavily on wave quality and board design.

A 75kg first-timer will commonly get on far better with 55 to 70 litres than with a sleek-looking 35-litre board. It may feel oversized on land, but it will catch more waves and create more opportunities to learn. That is the point.

Volume for children and lighter surfers

Do not simply copy an adult board recommendation for a younger surfer. Lighter riders need less total volume, while children also benefit from a board they can carry, turn and control safely. A soft board with stable width and sensible thickness is usually a better first choice than a narrow, high-performance shape with the same litre figure.

For teenagers moving beyond a foamie, volume can drop gradually as their paddling strength, pop-up and confidence improve. There is no prize for downsizing too soon.

Shape changes how those litres feel

Two boards can share identical volume numbers yet feel completely different underfoot. Where the foam sits matters as much as how much there is.

A wide board with a fuller nose and thicker rails spreads volume across the outline. It tends to paddle early, glide well and remain forgiving when your feet are not perfectly placed. This is why a 40-litre fish or groveller can feel easier than a 40-litre narrow shortboard.

A performance shortboard may carry its foam under the chest and through the centre, then taper into a pulled-in nose and tail. It can still paddle well for its size, but it expects cleaner footwork and more committed turns. A rounder, fuller rail gives forgiveness. A thinner, sharper rail grips better on a steep face but is less friendly when conditions are weak or messy.

Length plays a part too. More length creates glide, which helps you get into waves before they break. Width adds stability. Thickness adds flotation, but excessive thickness can make rails feel corky and difficult to bury. That is why chasing litres alone can lead to the wrong board.

Match your volume to the waves you surf most

Choose for your usual sessions, not your occasional best day. For plenty of UK surfers, that means softer beach-break peaks, changing tides, wind chop and waves that are fun rather than flawless. A little extra volume is often a smart choice.

If you regularly surf small, slow waves, a fuller board with more litres will keep your wave count up. A fish, groveller, hybrid or mid-length can be far more enjoyable than forcing a low-volume shortboard through knee- to waist-high surf.

For punchier waves, a slightly lower-volume board with a narrower outline may give more control and hold. The change does not need to be dramatic. An experienced surfer might keep one everyday board with enough foam for average conditions, then use a lower-volume step-up only when the surf has real size and power.

On the Gower, where a session can vary hugely with tide, swell direction and wind, a versatile board is often worth more than a highly specialised one. If you are building a first quiver, prioritise the board that gets used most.

Know when to add or reduce litres

If you are missing waves because you cannot get up to paddling speed, add volume. If you catch plenty but struggle to control the board through turns, first check whether the shape is too wide, too long or too full for the wave. Reducing litres is not always the answer.

A common progression mistake is dropping too much volume after a few good sessions. You might be able to stand on a smaller board, but can you catch waves consistently, angle your take-off, make sections and finish a turn? If not, the bigger board is still helping you improve faster.

It is also sensible to add a few litres when you are returning after time out of the water, surfing in a thicker winter wetsuit or travelling to unfamiliar, softer waves. Fitness and paddle strength change through the year. Your ideal board volume can change with them.

A quick shop-floor check

Before buying, compare the board to what you already ride. Note the litres, length, width and thickness, then be honest about what you want to improve. More wave count? Look for extra volume and a forgiving outline. Faster, tighter turns in decent surf? Keep the litres manageable but consider a more performance-led shape.

Do not choose purely because a board is labelled intermediate or advanced. Those labels vary between brands. Board dimensions, volume and intended wave range tell a clearer story.

The best board is not the smallest one you can occasionally stand on. It is the one that has you paddling out with confidence, catching enough waves to learn and wanting another session as soon as you dry off.