Do You Need a Dinghy? Inflatable Boats & Tenders Explained

If your boat anchors out instead of tying up at a dock every time, you'll eventually need a way to get from the boat to shore — that's what a dinghy (or "tender") is for. A day boat that beaches directly or always ties up at a marina doesn't need one. A sailboat, trawler, cabin cruiser, or cuddy cabin that spends nights on the hook usually does.

Do You Actually Need One?

Ask yourself one question: when you're anchored, how do you plan to get to shore?

• You anchor out overnight or for extended periods — you need a tender, full stop.
• You mostly dock at a marina or launch ramp — you probably don't need one at all.
• You occasionally anchor for lunch or swimming near shore — a tender is a convenience, not a requirement.

Tender or Primary Boat? That Changes What to Buy

There's a clean rule of thumb here: if this boat is a tender for your bigger boat, prioritize portability — a roll-up wins on space and setup time. If this will be your only/primary boat, prioritize performance instead — a roll-up isn't rated to plane at all, so a Sportboat, HPIF, or RIB is the better call even though it costs more and stows less easily. Buying the wrong end of that trade-off is the single most common mistake here.

The Five Tender Types

Every tender is a trade-off between price, performance, and how much space it takes up on your boat:

• Roll-up / soft-floor — the most portable and cheapest option. Slats or an air floor instead of a rigid hull, so it deflates small and stores in a locker or lazarette. Rows and motors fine at low speed (up to ~5-6hp), but can't plane — best suited to being a tender, not a primary boat.
• Sportboat — a step up. A removable rigid floor (plywood, composite, or aluminum) lets it plane and take larger outboards (6-25hp), with more cargo capacity than a roll-up. Takes longer to assemble/break down and needs more stowage space, but it's a genuinely capable boat on its own.
• High-pressure inflatable floor (HPIF) — a different middle ground. A stiff, high-pressure air floor (not a removable rigid one) gives most of a Sportboat's performance while still rolling up more compactly — popular for boats with tight foredeck space.
• Rigid inflatable boat (RIB) — a true fiberglass or aluminum hull with inflatable tubes for stability. Tows and planes best of the inflatable options and can usually take the largest outboard, but it doesn't deflate at all — you need davits or real deck space to carry it.
• Rigid boat — no inflatable component at all (fiberglass, poly, or aluminum). The most durable option and immune to punctures, but the least compact — same stowage requirements as a RIB, and rowing/motoring performance depends heavily on hull design.

If you'll only use the tender occasionally and want it out of the way most of the time, a roll-up is the easier fit. If you'll actually run errands, ferry groceries, explore in it regularly, or want it to be your only boat, a Sportboat, HPIF, RIB, or rigid boat rewards you every time you use it — the trade-off is stowage space and price.

What It Actually Costs

Real prices vary by size, brand, and floor type, but as a starting point:

• Roll-up / soft-floor inflatable: roughly $1,400–$2,200
• Sportboat: roughly $1,800–$5,500
• Rigid inflatable boat (RIB): roughly $2,800–$4,700
• Rigid boat: roughly $600–$800 for a basic rigid model (e.g. a Classic Dinghy), up to $1,900–$5,500 for aluminum hull

Neither price includes the outboard motor — small tenders typically run a 2-15hp outboard, priced separately based on the tender's size and how loaded down it'll be.

Registration: The Part People Miss

A dinghy is a boat in its own right, and most states require it to be registered once it carries a motor — including a small trolling motor, not just an outboard. Purely rowed or paddled tenders are often exempt, but rules vary meaningfully by state. Check with your state's boating/DNR agency before assuming your tender is covered under your main boat's registration — in most places, it isn't.

Don't Buy This on Impulse

Unlike a lot of gear on a boat's checklist, a dinghy is a real second boat — it has its own hull, its own motor, and (usually) its own registration. Confirm you actually anchor out often enough to need one, measure your stowage space, and match the type to how you'll really use it, before you match it to price alone.