Tandem or single inflatable kayak: which one to buy

Buy the tandem only if it is the Sea Eagle SE370; otherwise buy a single, and for most solo paddlers that is the Sevylor QuikPak K1. The SE370 is the one two-seater in this registry whose rated capacity still works when you divide it between two adults, and it is the one a single paddler can take out alone without running out of boat.

That conclusion comes from one piece of arithmetic nobody in this category publishes: what each seat in a tandem is rated to carry. A rating is a boat figure. Buyers need a seat figure.

How we judged it, before any boat is named

Every figure below is a manufacturer's published rated capacity, worked through the same convention the rest of this site uses. We plan to two thirds of a rating rather than all of it, because a rating is the point at which the maker stops making claims and not a load the boat is comfortable at. Then we subtract 20 lb of kit per person: paddle, PFD, water, dry bag.

Run that one way and you get the heaviest single paddler a boat supports. Run it the other way, splitting the working load between two seats, and you get the heaviest each of two paddlers can be. The second figure is the one this page exists for, and no manufacturer in this registry publishes it.

Every boat, both ways round

The finding: a tandem rating is not two paddlers

Both Intex tandems are rated at 400 lb. That is a perfectly respectable number for a boat of their size and it is the number the listings lead with. Divided between two seats at our working load it supports two paddlers of 114 lb each, which is not two adults.

Even read at the raw rating rather than our convention, 400 lb is two 180 lb adults plus 40 lb of kit exactly: one hundred percent of rated capacity with nothing spare. That is the number people are unknowingly buying when they buy the cheapest tandem, and it is why so many of them end up being paddled solo.

The Sea Eagle SE370's 650 lb rating is the outlier, and it is the whole reason it keeps winning tandem comparisons on this site. One hundred and ninety-seven pounds per paddler is the only figure here that describes two grown adults with gear.

Can one person paddle a two-person inflatable kayak?

On capacity, comfortably. A solo paddler in a tandem has more load margin than they would have in any single-seat boat we cover: 413 lb of paddler on the SE370, 280 lb on the Voyager 2, 247 lb on either Intex. The second seat becomes dry-bag space, which is why the tandems also do well on the overnight-trip page.

What goes wrong is trim. Sitting in one seat of a two-seat boat puts your weight behind the balance point, the bow lifts, and a lifted bow is a sail. On flat water in still air you will not care. In any wind you will, and the boat will try to turn downwind every time you stop paddling.

The fix the manufacturers offer is a movable seat: slide it toward the middle and the boat trims close to level. Sea Eagle goes further and sells the SE370 as a one-to-three-person boat outright, which makes solo use its intended configuration rather than a workaround.

The costs that remain are the ones a capacity table cannot show you. You carry the whole boat by yourself, you pump the whole boat by yourself, and you are paddling a hull that is wider at your hips than a single would be, so every stroke reaches further out.

When the single is the better boat

If you paddle alone nine times out of ten, buy a single. The margin a tandem gives a solo paddler is real but it is bought with weight at both ends of every outing, and with a hull shape that is compromised for the trip you are actually making.

The arithmetic is less lopsided than it looks, though. The Sevylor QuikPak K1 supports a 247 lb paddler, the same as either Intex tandem, on half the hull and 18 lb instead of 37. That is the trade stated plainly: identical load ceiling, half the boat to deal with.

Where the singles genuinely lose is the top end. Nothing single-seat in this registry comes near the SE370's 413 lb, so a heavy paddler carrying a lot of gear is pushed toward a tandem whether or not anyone else is coming. That case is worked through on the page for bigger paddlers.

Two singles instead of one tandem

It is the option people forget. Two paddlers in two boats each control their own line and neither has to match the other's stroke, which is the single biggest complaint about tandems and the reason for the old joke about them being divorce boats.

The cost is logistics. Two QuikPak K1s are 36 lb in two bags against 32 lb in one for the SE370, and two pump sessions instead of one. If you always paddle together, the tandem is lighter, cheaper and quicker to get on the water. If you paddle together sometimes and separately other times, two singles is the setup that covers both.

Two boats we did not rank, and why

The Driftsun Voyager 2 appears in the table on its published specifications and is not a pick. Its Amazon listing has returned "currently unavailable" on four consecutive checks between 23 September and 23 October 2026, and we do not recommend a boat we cannot confirm is buyable. On the numbers it would otherwise sit second here, at 130 lb per paddler and 280 lb solo.

The Aquaglide Chelan 120 is in the table for the same reason and excluded as a pick for a different one: it has no Amazon listing, Backcountry and Campmor both show it out of stock or on pre-order as of 23 October 2026, and Aquaglide's own store no longer lists kayaks at all. Its figures are unchanged and we have left them standing.