PRODUCT INFORMATION

The Grand Canyon Gold Standard

For paddlers who want maximum gear capacity and stability on the biggest rivers, the SOTAR Classic ST 18’ is the gold standard. With a massive footprint and excellent weight distribution, it’s the top choice for long expeditions through challenging whitewater, including the Grand Canyon and the Stikine.

Big Water, Big Loads, and Big Comfort

This raft handles oversized gear stacks, heavy loads, and long hauls with grace. Its design keeps weight evenly distributed for a smooth, balanced ride—even when fully loaded. It’s the ultimate expedition platform for rowers or teams looking to push their boundaries on remote rivers.

Legendary Performance on the World’s Hardest Runs

The ST 18’ Classic made history as the first paddle raft to descend the Stikine River—a testament to its unmatched stability and control. Whether you're paddling with 3–4 thwarts or setting it up with a rowing frame, this inflatable whitewater raft delivers unmatched performance for your most ambitious trips.


STR 18

BUILD TEMPLATE

MODEL STR 18
MATERIAL40oz REZCOAT URETHANE
LENGTH18 FEET
EXTERIOR WIDTH96 INCHES
TUBE DIAMETER24 INCHES
STRAIGHT SECTION94 INCHES
INTERIOR WIDTH48 INCHES
THWARTS2 THWARTS
THWART DIAMETER14 INCHES
FLOOR DROP17 INCHES
FLOOR THICKNESS6 INCHES
FLOOR I-BEAMS9 I-BEAMS
VALVE ORIENTATIONS
D-RINGS10 D-RINGS
HANDLES6 HANDLES
AIR CHAMBERS7 CHAMBERS
BOW & STERN RISE14 INCHES
BOW & STERN RAKE14 INCHES
LOAD CAPACITY2968 POUNDS (AT 1/3 SUBMERGENCE)
CAPACITY PERSONS10 PEOPLE
WEIGHT151 POUNDS
WARRANTY10 YEAR LIMITED

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DESIGN MODIFICATIONS

Together we can tailor the size and shape of your boat to perfectly suit your unique water or cargo requirements.

HANDLES & D-RINGS

Modify the placement and quantity of D-rings and handles to expand functionality and meet your specific needs.

LOGOS & GRAPHICS

Showcase your graphic designs prominently on the side of your boat for a personalized and professional touch.

CUSTOMIZED COLORS

Get a unique color scheme, including tubes, floors, thwarts and highlights to match your style or branding.

TOP CHAFE

Improve comfort, stability and protection with custom top chafe strips, offering extra grip for seating areas.

BOTTOM WRAP / CHAFE

Toughen up with a bottom wrap that sheilds your boat from rugged rapids and shallow water.

THWARTS

Secure seating positions and organization by modifying thwart placement or size to keep your paddlers comfortable during calm and wild rides.

VALVE PLACEMENT

Custom valve placement on your inflatable allows for optimized inflation, deflation, and accessibility based on specific user needs.

FOOT CUPS

Get more leverage for stronger paddle and keep paddlers balanced, by installing foot cups that anchor your feet securely in place.

HANDMADE IN THE USA

BY SKILLED CRAFTMEN AND RIVER GUIDES
WHO FLOAT THE ROGUE RIVER WITH OUR

SMALL FAMILY BUSINESS

FAQs

Also check out our GENERAL FAQs page to learn more.

How long will it take you to build my boat after I order?

While all our boats are made-to-order, they do not enter our production process immediately after the order is placed. Your order will be put in our standard queue and our current lead time is around 8 weeks +/-.  

If your looking to get a boat right now, check out what we have instock.

Am I making a deposit?

Not on orders purchased through our online store. A 50% deposit is required on custom build phone orders.

What does your warranty cover?

We provide a limited warranty on our rafts, catarafts, tubes, and inflatable kayaks, covering up to 10 years for recreational use and 6 years for commercial use.
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