Choosing an inflatable boat is not simply a matter of counting how many people you want to carry.
A boat can have enough rated capacity for you and still feel cramped once you add an outboard, fuel or batteries, lifejackets, shopping, fishing equipment and everything else that inevitably comes along for the trip.
On the other hand, buying the largest boat available might give you plenty of room on the water, but it can also create more work every time you need to lift it aboard, fit it onto the foredeck, inflate it beside a lake or pack it back into the boot of the car.
For many European buyers, the real question is not:
What is the largest inflatable boat I can buy?
It is:
What is the largest boat that will still fit comfortably into the way I travel and use the water?
That might mean fitting across the transom of a sailing yacht, being light enough to pull onto davits, packing into a motorhome storage compartment or sitting in the boot of a family car until the next weekend at the lake.
The right inflatable boat size depends on how you intend to use it, where you will store it and what you need it to do once you are on the water. You can also compare the full True Kit range before looking at the individual use cases below.
For most people, the best place to start is not:
How many people can this boat carry?
It is:
What will I use this boat for most often?
That one question will usually narrow the options down fairly quickly.
Start With Your Main Use
A compact tender used for short trips between a yacht and shore has very different requirements from a boat used for full days exploring lakes.
A cruising couple may place the greatest value on low weight, quick handling and whether the tender fits neatly across the transom or on the foredeck.
A family spending the day on a lake may need space for children, a picnic, swimming equipment, lifejackets and perhaps the family dog.
An angler may spend several hours aboard with rods, tackle, an anchor, an outboard, batteries and safety equipment. Technically fitting everything aboard is one thing. Having enough room to move, cast and land a fish comfortably is another.
Someone travelling with a motorhome, campervan or caravan may want the largest practical boat that can still fit inside the available storage space without requiring a trailer.
Before comparing dimensions, decide which of these sounds most like you:
- Using the boat primarily as a yacht tender
- Exploring lakes, rivers or sheltered coastal water
- Travelling with a motorhome, campervan or caravan
- Carrying a tender on a sailing yacht or motorboat
- Making short trips between an anchorage and shore
- General family boating and swimming
- Fishing on lakes, rivers or coastal water
- Keeping a lightweight rowing tender or backup boat aboard
You may want your boat to do several of these jobs. Most people do.
The important thing is identifying the job it will perform most often, rather than choosing around the occasional trip you might make once or twice a year.
Does the Boat Need to Stay Inflated?
How you plan to store the boat is one of the most important parts of choosing its size.
A tender that remains inflated throughout the sailing season presents a very different decision from a boat that needs to be unpacked beside a lake and returned to its bag at the end of every day.
Keeping the boat inflated
When a boat will remain inflated, the limiting factor is often its full external dimensions rather than its packed size.
For a yacht tender, consider:
- The width of the yacht’s transom
- The available space on the foredeck
- Whether the boat will obstruct hatches or deck equipment
- Whether it will sit on davits or a bathing platform
- How the tender will be lifted
- Where it will be secured during passages
- Whether it can be launched and recovered safely by the usual crew
True Kit boats are exceptionally light for their size, but lightweight does not necessarily mean effortless.
A tender can still be awkward to manage if it is physically too large for the available foredeck, davits or lifting arrangement. A three-metre tender may be easy for two people to lift but completely unsuitable if it overlaps the yacht’s beam or prevents access to the anchor locker.
Measure the area where the tender will actually live before choosing a model. Do not rely only on the overall length of the yacht or assume that a larger foredeck will automatically accommodate a larger tender.
A few minutes with a tape measure now can prevent a fairly expensive game of inflatable Tetris later.
Packing the boat away after use
If you plan to deflate the boat after most trips, packed dimensions and setup effort become more important.
Every True Kit is designed to be folded and packed repeatedly, but a smaller model will still generally be quicker to handle, wash, dry and pack after a day on the water.
This matters in Europe, where the boat may need to fit inside:
- The boot of a family car
- A motorhome garage
- A caravan storage compartment
- A yacht locker
- An apartment storage room
- A small garage or shed
The interesting part is that a larger inflatable boat does not always require dramatically more storage space.
Discovery Inflatable Boat Size Range
For example, the Discovery 330 packs into a bag measuring approximately 105 × 70 × 35 cm. The considerably larger Discovery 400 packs into a bag measuring approximately 105 × 70 × 40 cm.
That additional five centimetres of packed depth gives you a boat that is 70 cm longer and 15 cm wider once inflated.
The trade-off is handling weight. The Discovery 400 weighs approximately 45 kg, compared with 36 kg for the Discovery 330.
So, while the larger boat may fit into almost the same area of a motorhome garage or vehicle, it will not necessarily be as easy for one person to lift and move.
That distinction matters. Packed dimensions determine whether the boat fits into your available space. Weight determines whether you are happy to pull it back out again next weekend.
How Much Space Do You Need on the Water?
Passenger capacity and usable space are not the same thing.
Rated capacity tells you the maximum permitted load. It does not tell you whether everyone will be comfortable once you add:
- An outboard
- Fuel or batteries
- Fishing tackle
- An anchor and rope
- Food and water
- Swimming or diving equipment
- Children
- Dogs
- Shopping or provisions
- Lifejackets and safety equipment
All of this weight must be included when considering the boat’s capacity.
More importantly, bulky equipment takes up physical space even when it does not bring the boat anywhere near its maximum permitted load.
A picnic box, beach bags and two excited children can occupy a surprising amount of boat.
Buyers primarily looking for family days on the water should therefore allow for children, pets, bags and safety equipment rather than basing the decision on adult seating alone.
For occasional short trips ashore, a compact boat may be perfectly adequate. For full days spent exploring a lake, swimming or fishing, additional floor space can be far more valuable than the headline capacity figure suggests.
What Size Inflatable Boat Is Best as a Yacht Tender?
Choosing an inflatable yacht tender is usually driven by the space available aboard the main vessel and the number of people who regularly travel ashore.
You should also consider whether the tender will:
- Stay inflated throughout the season
- Sit across the transom
- Be carried on davits
- Be stored on the foredeck
- Be deflated and placed in a locker
- Be lifted by one person or several crew members
- Carry shopping, fuel, water or other provisions
- Cover longer distances between an anchorage and shore
- Double as a boat for swimming, fishing or exploring
Tender buyers often focus on the maximum number of people they might occasionally carry.
In reality, the more useful question is how many people, and how much equipment, will use it on an ordinary day.
There is little point choosing a larger tender for the one week each year when guests come aboard if it is awkward to launch and recover for the other 51 weeks.
Navigator Inflatable Boat Size Range
Navigator 250
The Navigator 250 is the compact tender option for couples, smaller cruising yachts and owners with limited storage space.
It is 250 cm long, has a beam of 142 cm, weighs approximately 24 kg and packs into an 80 × 60 × 25 cm bag. It has a capacity of 350 kg and supports an outboard of up to 6 hp.
It is particularly suitable when:
- One or two people normally use the tender
- Low weight is a major priority
- The boat needs to fit into a small locker
- The tender is regularly lifted onto the foredeck
- One person may need to handle the boat
- Most trips are short runs between the yacht and shore
- The yacht has limited space across the transom
For a couple making regular trips from anchorage to shore, the Navigator 250 may be all the tender they need.
It remains light enough to handle without turning every launch into a full-crew operation, yet still provides the stability and carrying capacity needed for everyday tender use.
Navigator 300
For a family or larger cruising crew, the Navigator 300 provides considerably more capacity and space while remaining portable.
It is 300 cm long, has a beam of 155 cm, weighs approximately 31 kg and packs into a 105 × 60 × 30 cm bag. It carries up to 500 kg and supports an outboard of up to 10 hp.
It is often the better choice when:
- Three or four people regularly travel together
- You carry shopping, luggage or equipment
- The tender will cover longer distances
- You want greater outboard capacity
- The yacht has sufficient deck, transom or locker space
- You regularly carry children or pets
- The boat will also be used for swimming or exploring
The Navigator 300 gives a family or larger crew far more breathing room once bags, provisions and safety equipment are aboard.
For many European yacht owners, it represents the most useful balance between tender capacity and onboard handling. It is large enough to perform the everyday jobs of a proper family tender without becoming excessively heavy or difficult to store.
For tender use, however, do not automatically choose the largest model your yacht can carry.
A tender that is easy to launch and recover will usually be used more often than one that provides extra space but becomes a chore to handle.
Should You Choose a Navigator or Discovery as a Tender?
The Navigator was designed specifically as a yacht tender.
Its closed, high-volume bow allows people and equipment to be carried farther forward, making it a strong choice for everyday transport between a yacht and shore.
The Discovery uses an open, landing-craft-style bow. This makes it easier to:
- Step on and off at a beach
- Board from the water
- Load diving equipment
- Carry fishing gear
- Move between the tender and a bathing platform
- Use the same boat for lake trips and family days
- Bring children or dogs aboard from shallow water
Choose the Navigator when your priority is carrying people and provisions efficiently in a traditional tender role.
Choose the Discovery when you want the boat to do more than tender duty.
The Discovery 280 can work well as a compact multipurpose tender, while the Discovery 330 gives families and active cruisers more room for fishing, diving and exploring.
What Size Inflatable Boat Is Best for Lakes?
Lake use covers everything from short family outings to fishing, camping and exploring large inland waters.
The right size depends on what a normal day looks like for you.
A couple travelling in a campervan may want a compact boat that can be inflated beside the water and easily returned to its bag. A family may prefer more room for children, food and swimming equipment. An angler may value enough floor space to stand, cast and organise tackle.
A Discovery is generally the strongest choice when:
- The boat will be used for family days
- You want an open bow for swimming
- Fishing is part of the plan
- You will carry camping or picnic equipment
- You want a petrol or electric outboard
- You need a boat that can also work as a tender
- You want to explore beyond the immediate shoreline
Discovery 280
The Discovery 280 is the most compact model in the Discovery range.
At 280 cm long and 150 cm wide, it weighs approximately 31 kg, packs into a 100 × 65 × 35 cm bag and is rated for an outboard of up to 8 hp.
It provides a useful balance for buyers who want the open bow and versatility of a Discovery but still place a high priority on compact handling.
It is well suited to:
- Couples exploring lakes and rivers
- Small family outings
- One or two-person fishing
- Motorhome and campervan travel
- Buyers with limited storage space
- People who regularly need to inflate and pack the boat away
The Discovery 280 is a good fit when portability remains near the top of your list.
It gives you a genuine multipurpose boat without making every launch and pack-down feel like a major event. For many European buyers, this is enough boat to unlock days on the lake without needing a trailer, permanent mooring or large storage space at home.
Discovery 330
The Discovery 330 is often the strongest all-round choice for family lake use, exploring and fishing.
It is 330 cm long, has a beam of 165 cm and supports an outboard of up to 15 hp. At approximately 36 kg, it remains considerably lighter and easier to transport than most rigid boats of a comparable usable size.
Its packed bag measures approximately 105 × 70 × 35 cm.
It is a practical option for:
- Families spending full days on the water
- Two anglers and their equipment
- Motorhome and caravan travel
- Swimming, exploring and occasional tender use
- Buyers wanting more outboard capacity
- Carrying children, dogs and equipment
- Exploring larger lakes and sheltered coastal areas
The Discovery 330 is the sweet spot when you want enough space for a proper day out but still need the boat to fit into a vehicle or storage compartment.
It can serve as a family lake boat during the summer, a fishing platform at the weekend and a yacht tender during a sailing holiday.
If you want one portable boat to cover several jobs well, the Discovery 330 will often be the first model worth considering.
Discovery 400
The Discovery 400 is designed for buyers who prioritise space, load capacity and performance.
It is 400 cm long, 180 cm wide and rated for an outboard of up to 20 hp. The boat weighs approximately 45 kg and packs into a 105 × 70 × 40 cm bag.
It makes sense when:
- Several adults will regularly be aboard
- You carry substantial camping, diving or fishing equipment
- You want to use a more powerful outboard
- The boat will often remain inflated
- Two people are normally available to launch and recover it
- You explore larger lakes or sheltered coastal water
- Maximum onboard room is a priority
- You have a larger vehicle, motorhome or suitable storage space
The important point is that the Discovery 400 occupies only slightly more packed space than the Discovery 330.
You are not giving up half the garage to gain the extra room. The more meaningful difference is handling the additional length and nine kilograms of extra weight once the boat comes out of its bag.
For buyers already planning to transport the boat in a large motorhome garage, van or spacious vehicle, the Discovery 400 may therefore be more practical than its four-metre length initially suggests.
It is likely to be more boat than the average European tender buyer requires, but it can be an excellent option for larger families, anglers and buyers regularly exploring bigger lakes.
What Size Inflatable Boat Is Best for Fishing?
When choosing a portable inflatable fishing boat, it usually makes sense to select a slightly larger model than the minimum needed to carry the anglers.
Fishing requires room to move, cast, land fish and organise equipment without rods, hooks and tackle constantly crossing over one another.
You may be able to fit two anglers into a compact boat, but that does not necessarily mean both anglers will enjoy fishing from it for the entire day.
The Discovery 280 is a practical choice for one angler or a compact two-person setup.
The Discovery 330 gives two anglers substantially more working room while remaining manageable enough for car, caravan and motorhome transport.
The Discovery 400 is the better choice when several adults, a large amount of tackle or substantial camping equipment will regularly be carried.
What About the Tactician?
Not every angler needs a wide, multipurpose Discovery.
The True Kit Tactician is a narrower, fishing-focused kayak alternative designed for reaching lakes and rivers that are difficult to access with a conventional boat and trailer.
Tactician Boat Size
The Tactician 350 is 350 cm long but only 115 cm wide. It weighs approximately 28 kg and packs into a bag measuring 80 × 60 × 25 cm.
Despite its compact packed size, it has a transom rated for an outboard of up to 6 hp.
This makes it particularly useful for:
- Solo anglers
- Two-person fishing trips
- Lakes, rivers and estuaries
- Carrying a boat in a car, motorhome or yacht locker
- Launching away from formal slipways
- Buyers who prioritise access and compact storage
- Anglers who want more capability than a conventional fishing kayak
Its catamaran hull provides the stability needed for standing, casting, moving around and landing fish.
A small electric outboard can provide quiet and efficient propulsion, which is particularly useful on European lakes where petrol engines may be restricted or prohibited.
A petrol outboard can also be used, with up to 6 hp available for anglers who need to cover more water. A short-shaft outboard in the 4 to 6 hp range is the more appropriate option when planing performance is required.
Choose the Tactician when fishing is the absolute priority and you value compact transport and access to less accessible water.
It is for the angler who sees a quiet lake without a slipway and thinks, “That looks worth exploring.”
Choose a Discovery when you need a wider, more multipurpose platform for fishing, family use, tender duty and carrying larger amounts of equipment.
When Is a Stowaway the Better Choice?
Some owners do not need an outboard-powered tender at all.
The True Kit Stowaway is designed as a compact, human-powered boat for rowing between a yacht and shore, carrying in a motorhome or keeping aboard as a lightweight backup.
The Stowaway 250 is 250 cm long, has a beam of 132 cm, weighs approximately 14 kg and packs into a bag measuring around 72 × 42 × 20 cm.
It does not have a transom and is intended for human-powered use.
Stowaway Boat Size
A Stowaway may be the right choice when:
- Storage space is extremely limited
- The boat is only needed for short rowing trips
- You do not need an outboard
- Low weight matters more than speed or range
- You want a compact secondary or backup boat
- You need something that is particularly easy to lift aboard
- The boat must fit inside a small yacht or motorhome locker
At 14 kg, the Stowaway is the model you choose when simplicity matters more than horsepower.
There is no outboard, fuel tank or heavy battery to find space for. Unpack it, inflate it and row ashore.
It is not intended to replace a powered tender for longer trips, exposed anchorages or carrying substantial equipment. For short distances and simple transport, however, that lack of complexity is exactly the appeal.
Do You Need a Petrol or Electric Outboard?
Should You Buy the Bigger Boat?
When choosing between two sizes, consider how often the advantages of the larger boat will outweigh the additional handling.
Size up when:
- Several adults regularly use the boat
- Fishing is an important part of its use
- You spend full days on the water
- You carry significant equipment
- You want a larger outboard
- You have enough storage space
- You normally launch with another person
- The packed dimensions are manageable for your vehicle
- The boat will frequently remain inflated
Stay smaller when:
- The boat must fit across a yacht transom or foredeck
- You inflate and pack it away after every short trip
- Storage is very limited
- It must fit into a smaller car or yacht locker
- You need to carry the boat over a meaningful distance
- Quick setup matters more than maximum space
- Tender trips are short and lightly loaded
- One person needs to lift or manage the boat
For European yacht owners, the Navigator 250 versus Navigator 300 decision will often come down to available deck space and how many people regularly travel ashore.
For lake users, the Discovery 280 versus Discovery 330 decision is more likely to come down to storage space, family size and how much equipment normally comes along.
If both models fit inside your vehicle or aboard your yacht and the extra weight is manageable, sizing up can make sense.
If the larger model turns every outing into a two-person job when you usually boat alone, the additional space may quickly lose its appeal.
The best boat is not necessarily the largest one you can afford. It is the largest boat you can store, transport, launch and use without creating unnecessary friction.
The boat that gets used every weekend is better than the larger boat that stays in its bag.
True Kit Inflatable Boat Size Comparison
| Model | Best suited to | Length | Weight | Packed size | Maximum outboard |
|---|---|---|---|---|---|
| Stowaway 250 | Compact rowing tender or backup | 250 cm | 14 kg | 72 × 42 × 20 cm | Human powered |
| Navigator 250 | Couples and compact yacht-tender use | 250 cm | 24 kg | 80 × 60 × 25 cm | 6 hp |
| Navigator 300 | Family and larger yacht-tender use | 300 cm | 31 kg | 105 × 60 × 30 cm | 10 hp |
| Discovery 280 | Compact multipurpose use | 280 cm | 31 kg | 100 × 65 × 35 cm | 8 hp |
| Discovery 330 | Fishing, family use and travel | 330 cm | 36 kg | 105 × 70 × 35 cm | 15 hp |
| Discovery 400 | Maximum room, equipment and performance | 400 cm | 45 kg | 105 × 70 × 40 cm | 20 hp |
| Tactician 350 | Compact solo or two-person fishing | 350 cm | 28 kg | 80 × 60 × 25 cm | 6 hp |
Specifications should always be confirmed on the current product page before selecting a boat or outboard.
A Simple Way to Choose
If you mainly need a compact rowing tender or lightweight backup boat, consider the Stowaway 250.
If you need a lightweight powered yacht tender for one or two people, start with the Navigator 250.
If you regularly carry a family, larger cruising crew or substantial provisions, the Navigator 300 will usually be the more versatile tender.
If you want a compact boat for lakes, family outings, fishing and occasional tender use, look at the Discovery 280.
If you want the strongest balance of lake space, portability, fishing capability and multipurpose use, consider the Discovery 330.
If onboard space and performance matter more than one-person handling, look at the Discovery 400.
If your priority is reaching less accessible fishing locations with the smallest practical packed setup, choose the Tactician 350.
Final Thoughts
The right inflatable boat size is determined by more than its length or stated passenger capacity.
Think about the complete experience:
- Where will it be stored?
- Who will carry and launch it?
- Will it stay inflated?
- How much equipment will be aboard?
- How long will you spend on the water?
- What outboard will you use?
- What will the boat be used for most often?
For tender buyers, a slightly smaller boat can make lifting, deck storage and everyday trips ashore much easier.
For lake users, sizing up can provide the space needed for children, fishing equipment, swimming gear and full days spent exploring.
Choose the boat that best fits the way you will genuinely use it, rather than the unlikely occasion when you might need to carry the maximum possible number of people.
Compare every True Kit model by length, weight, packed dimensions, capacity and maximum outboard to find the best fit for your next adventure.
