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12′ Inflatable Boats SD365 Review

12 Inflatable Boats SD365 KayakDIY Review
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Inflatable Boats · Reviews

12′ of inflatable boat, room for 5 people, rated up to a 30 hp (15″ shaft / 150 lbs) outboard. Here is an honest, spec-by-spec look at the SD365 — what it does well, what it costs, and who it is actually for.


Saturn’s 12' Inflatable Boats SD365 measures 12' and answers a simple question: how much boat can you get without a trailer? It is rated for 5 people with a 1433 lbs load capacity, which covers a realistic day on the water for most buyers.

At 12', it is the 10th largest of the 26 inflatable boats in Saturn’s current range. At $1,299, it lands in the middle of the pack on price. If you want to skip ahead, check the current price here.

For this review I went through the full spec sheet line by line, so everything below comes from what the manufacturer actually publishes — dimensions, capacities, and construction — plus what those numbers mean once the SD365 is on the water.

12' Inflatable Boats SD365
The 12' Inflatable Boats SD365.

Key Features

  • 12' long × 5.7' wide
  • 18" tubes
  • 3+1+1 air chambers
  • Rated for 5 people
  • 1433 lbs maximum load
  • Transom rated up to 30 HP (15" shaft / 150 lbs)
  • Weighs 110 lbs
  • Packs into 45x26x16"
  • Drop Stitch Air Floor
  • 1100 Denier Reinforced PVC
  • Listed speed: 25 mph (25HP w/2 adults)

On the Water

On the water, three numbers tell you most of what you need to know: length, beam, and tube diameter. At 12' long and 5.7' wide with 18" tubes, the SD365 is a mid-size inflatable with a reassuring footprint. In inflatables, tube diameter and beam do most of the work keeping you level — wide tubes are why these boats feel so much more stable than their weight suggests.

The transom is rated for up to 30 HP (15" shaft / 150 lbs). That keeps you in small-outboard territory — light, affordable motors that one person can lift and mount. That is the whole point of a boat like this: enough power to get you to the spot without the cost, weight, and upkeep of a big rig.

Saturn lists a speed of 25 mph (25HP w/2 adults). Treat that as a realistic expectation with the stated setup rather than a promise — load, prop, and conditions move that number around.

Plan around the 1433 lbs load rating, not just the person count. Add up people, motor, fuel or battery, cooler, and gear before you buy. If that math lands close to the limit, size up — a boat that runs near its rating is slower, wetter, and less fun.

12' Inflatable Boats SD365 — additional photo 2
The 12' Inflatable Boats SD365 — another view.

Build and Materials

The tubes are 1100 Denier Reinforced PVC. That is the heavy-duty end of the PVC fabrics used on inflatables this size — thicker fabric resists abrasion and holds air pressure more consistently. Seams are Quadruple Overlap. More overlap at a seam means more glued surface holding the tube together, which is exactly what you want on a boat that lives in the sun and gets dragged up beaches.

The spec sheet lists 3+1+1 air chambers. Separate chambers are a safety feature, not a spec-sheet decoration: if one compartment is ever compromised, the others keep you afloat. The Recessed One-Way valves sit flush in the tubes, so there is nothing sticking out to snag on a dock, a truck bed, or your fishing line.

The Drop Stitch Air Floor inflates drum-tight and gives you a rigid deck to stand on. If you fish standing up — sight casting on flats is the classic case — a hard-feeling floor changes the whole experience.

Weight, Portability, and Setup

The SD365 weighs 110 lbs. Plan on two people or a dolly for the carry to the launch. It packs into a 45x26x16" package (128 lbs). The packed bag fits in most car trunks or SUV cargo areas — no trailer, no roof rack, no storage unit.

BoatsToGo does not publish a setup time for this model. For an inflatable this size, plan on 15–20 minutes with a decent pump the first few times; it gets faster once you have done it a couple of times.

12' Inflatable Boats SD365 — additional photo 3
The 12' Inflatable Boats SD365 up close.

Who It's For — and Who Should Skip It

Who it is for: anglers, divers, and families who need a tender — or a standalone fishing boat — without owning a trailer, running up to a 30 HP (15" shaft / 150 lbs) outboard. If your fishing looks like trailer-free launches, skinny water, and packing the whole rig into a vehicle, the SD365 fits the program.

Honest trade-offs: it is still an inflatable, so inflation and setup are part of every trip. Sharp shells, hooks, and rocky shorelines demand the same respect you would give any PVC boat. Rinse it after saltwater use and store it out of long-term direct sun — UV is the slow killer of every inflatable ever made.

Who should skip it: if you want to turn the key and go with zero setup, or you regularly run rocky rivers, a rotomolded or aluminum hull will make you happier.

How It Compares

Within Saturn’s current range, the next step down is the 11' Extra Heavy-Duty Boat CN330 (11 ') at $1,099 and the next step up is the 12' PRO Inflatable Boats SD365 V1 (12 ') at $1,449. If you are torn between sizes, the usual advice holds: buy for the load you will actually carry most weekends, not the biggest crew you might take once a year. A smaller boat that runs light is faster, drier, and easier to handle than a bigger one loaded to its limit.

Care and Maintenance

An inflatable boat rewards basic care and punishes neglect — the good news is the care part is simple. Rinse it with fresh water after saltwater use, and let it dry before you roll it up; packing a damp boat away is how mildew starts.

Watch air pressure when temperatures swing. Air expands in the heat and contracts in the cold, so a boat inflated drum-tight on a cool morning can get very firm by midday. Bleed a little air if the tubes feel overly hard, and top up when evenings cool off.

For storage, keep it out of long-term direct sun — UV is the slow killer of every inflatable — and store it loosely rolled or partially inflated rather than folded tight on the same creases every time. Keep sand and grit out of the valves, and carry a small patch kit aboard. None of this is difficult; it is just the routine that keeps an SD365 going for years instead of seasons.

SD365 Specs

Spec Detail
Length 12'
Inside Length 7.7'
Width 5.7'
Inside Width 2.8'
Tube Diameter 18"
Air Chambers 3+1+1
Person Capacity 5
Max Load 1433 lbs
Max Motor 30 HP (15" shaft / 150 lbs)
Boat Weight 110 lbs
Shipping Size 45x26x16"
Shipping Weight 128 lbs
Floor Drop Stitch Air Floor
Material 1100 Denier Reinforced PVC
Seams Quadruple Overlap
Air Valves Recessed One-Way
Speed (approx.) 25 mph (25HP w/2 adults)
Color Red
12' Inflatable Boats SD365 — additional photo 4
The 12' Inflatable Boats SD365.

Frequently Asked Questions

How many people can the SD365 carry?

It is rated for 5 people, with a maximum load of 1433 lbs. Stay under both numbers — capacity and total weight — for the safest, driest ride.

What size outboard can I put on the SD365?

The transom is rated for up to 30 HP (15" shaft / 150 lbs). Stay at or under that rating — overpowering a small inflatable is dangerous and can void any warranty.

How much does the SD365 weigh?

The boat itself weighs 110 lbs; the shipping weight with packaging is 128 lbs.

How small does it pack down?

The packed size is 45x26x16" at 128 lbs. That fits in most car trunks or SUV cargo areas.

What kind of floor does it have?

It has a Drop Stitch Air Floor.

Where to Buy

The 12' Inflatable Boats SD365 is listed at $1,299 on BoatsToGo‘s website. If it sounds like your kind of boat:

Check Current Price

Pricing and availability change, so confirm the current price on the product page before ordering.

Affiliate disclosure: KayakDIY may earn a commission from qualifying purchases made through links in this article, at no additional cost to the reader. Product availability, pricing, and promo codes can change; verify them before purchasing.