SUP board compared: inflatable or hardboard , and which size?

Before buying a SUP there are three questions: inflatable or hardboard, which size and which type? Here’s the honest comparison , no invented test badges, but clear recommendations on which board suits which use. If you then want to go deeper, the SUP buying guide helps.

Inflatable (iSUP) or hardboard?

	Inflatable (iSUP)	Hardboard
Transport & storage	in a backpack, fits anywhere	needs space & roof rack
Durability	very tough, bounces off	more delicate (dings)
Ride feel	great all-rounder, a touch softer	more direct, faster, better in waves
Effort	pumping up (5–10 min)	ready to go instantly
Entry price	cheaper, usually as a complete set	tends to be pricier
For whom?	the vast majority , beginners, family, touring, travel	ambitious riders, waves, if you have space

Verdict: For the vast majority , and especially on the Baltic with changing spots , an inflatable iSUP is the more practical choice. A hardboard pays off mainly if you specifically want to ride waves or seek the direct ride feel and have the space.

Which size? By body weight

What matters is the volume (in litres) relative to your weight , the more volume, the more stable. Guide values for an all-round iSUP:

Body weight	Volume (guide)	Length (all-round)
up to 70 kg	from approx. 240 l	approx. 10’0″ – 10’6″
70–90 kg	approx. 260–290 l	approx. 10’6″ – 11’0″
90–110 kg	approx. 290–320 l	approx. 11’0″ – 11’6″
over 110 kg	from approx. 320 l	11’6″ and up, wider

Which type , which board for what?

• All-round: the beginner classic , wide, stable, for flat water, touring and family. The best first choice.
• Touring: longer and pointier, tracks better in a straight line , for longer distances and calm bay tours.
• Wave/surf SUP: shorter and more manoeuvrable , for the Baltic wave on good days, but wobblier on the flat.
• Race: narrow and fast , only for the ambitious, too tippy for beginners.

What to look for in an iSUP

• Stiffness: double-layer or fusion drop-stitch material is much stiffer (and lasts longer) than simple single-layer.
• Pressure: it should take at least 15 psi , the stiffer, the better the ride.
• Set accessories: a good iSUP comes with a paddle, double-action pump, leash, fin and backpack. Look for an adjustable, not-too-heavy paddle.
• Fin system: a click or US box beats a screw fin for convenience.
• Weight limit: mind the maximum load, especially if a dog or child comes along.

What should it cost?

Rough guide: beginner sets start at around 250–350 €, a solid mid-range with better material and accessories is about 400–700 €, premium above that. Steer clear of the very cheap offers under 200 € , wobbly material spoils the fun. More on renting, buying and saving in What does a SUP cost?.

Safety: vest & leash

In some countries a buoyancy or life vest is mandatory for SUP , in Denmark a SUP counts as a vessel depending on the water, and a vest is expected on open water. Check the local rules before your tour. A leash is always part of the kit anyway , it keeps you together with the board when the wind picks up.

In short: the right SUP

• For most: an inflatable all-round iSUP.
• Size by body weight , as a beginner, more volume and width.
• Look for stiff material (double-layer/fusion), a good paddle and set accessories.
• Hardboard or wave SUP only if you specifically want waves.
• Avoid bargain-basement boards under 200 €.

Note: as soon as our shop and partner links are live, you’ll find concrete board recommendations per category here. Until then: the content stands on its own, even without a single click.