Built in the U.S.A.

Built from scratch. Engineered to fly.

The Platinum 428 is a 42-foot, all-carbon-fiber catamaran designed from a clean sheet by champion offshore racers, refined with aerospace science, powered by twin Mercury Racing 500R outboards, documented at 131 mph on GPS — and built, start to finish, in the United States.

Explore the 428 → Watch the Founder Story
USAProudly built in America
0HPTwin Mercury Racing 500R
0MPHGPS-documented speed
42′8″Length overall

The Founder Story

Two champions.
One clean sheet.

Scott Grants and Edwin Scheer raced together in 1999 in the Super Cat Lite classes, compiling a string of victories that included a world championship in Key West with Team Motion. Twenty-five years later, they came back to do something harder: build the boat they always wanted to exist.

“We started with a clean sheet … to build the best quality boat on the market.”

Scott Grants — Co-founder, Platinum Powerboats

Their 17-minute documentary, Built From Scratch, follows the whole journey — from CAD file to 120-plus-mph carbon-fiber catamaran.

Meet Edwin & Scott →
Built From Scratch — the Platinum Powerboats founder story documentary ▶ 17-min documentary

Built in the USA — no exceptions

Quality over savings.
Every single hull.

Some builders move construction overseas because it costs less. We build in the United States because it builds a better boat. Every Platinum catamaran is laminated, rigged and finished by our own American team, under our own roof — never shipped out, never outsourced.

The most critical hours of a boat’s life happen in the mold. If nobody is standing over the layup while the carbon cures, no amount of finish work can fix what’s underneath. At Platinum, the racers whose name is on the side of the boat supervise every ply, every cure and every rig — from the first sheet of carbon to sea trial.

American labor American facility Founder-supervised construction
American craftsmen vacuum-infusing a carbon fiber Platinum hull in the USAEvery layup supervised — in our plant, by our team

The Lineup

Choose your Platinum

Pleasure · 6 or 8 seats

Platinum 428

The flagship. A 42′8″ all-carbon catamaran with twin Mercury Racing 500Rs, suspension seating and a cockpit built for eight.

Explore the 428 →
Factory Stock · Raceboat

Platinum 428 R

The canopied competition version, built to Factory Stock class spec — and already flying the Good Boy Vodka colors in offshore racing.

Explore the 428 R →

No hype. Just GPS.

Watch it pull to 131

Plenty of builders talk numbers. We film ours. This onboard clip follows the Garmin GPS speedometer as a 428 walks from 71 to 131 miles per hour — flat, level and composed the whole way.

“Stability and safety get you a lot farther than fast and flighty.”

Edwin Scheer — Co-founder, Platinum Powerboats

In its first full review, Speed on the Water crossed steep two- to three-foot wakes at 110 mph and carved hard 180-degree turns at high speed — and called the 428 “a catamaran of substance.”

Why it’s different

Science you can feel at 120

Three years of development with naval architects, aerodynamic specialists and carbon-fiber chemists — before the first hull ever touched water.

Five-axis CNC router carving the Platinum 428 hull plug
01

Five-Axis Precision

Hull and deck plugs machined by five-axis CNC router — accuracy no hand-faired mold can match.

 Vacuum infusion of a carbon fiber hull at Platinum Powerboats
02

Carbon, Infused

All-carbon-fiber-and-epoxy construction, vacuum-infused with a proprietary process and post-cured for strength.

 Carbon fiber bucket seats built in-house by Platinum Powerboats
03

Obsessive Detail

In-house carbon seat buckets, 3D-printed dash components and a one-piece acrylic windscreen.
See how a 428 is built →
Speed on the Water “First Impression — The Platinum 428 Is A Catamaran Of Substance” Poker Runs America “The Platinum Standard” Speed on the Water “New Video! Platinum Powerboats ‘Built From Scratch’” Speed on the Water “Platinum Powerboats To Open New Florida Production Headquarters” Speed on the Water “First Impression — The Platinum 428 Is A Catamaran Of Substance” Poker Runs America “The Platinum Standard” Speed on the Water “New Video! Platinum Powerboats ‘Built From Scratch’” Speed on the Water “Platinum Powerboats To Open New Florida Production Headquarters”
Motion offshore racing catamaran at speed — the founders' racing heritageTeam Motion — where it started

Heritage

Racing isn’t our marketing.
It’s our résumé.

Before Platinum, there was Motion — Edwin Scheer owned the catamaran company, and Scott Grants was its leading dealer. Together they raced Super Cat Lite in 1999, stacking wins and a Key West world championship. Edwin still competes in Factory-class offshore racing today.

That heritage is why the 428 exists: a boat built by people who have spent decades holding throttles at three-digit speeds — and who know exactly what keeps a crew safe there.

Read their story →

Where we run

Lake of the Ozarks Shootout Key West Powerboat Week 1,000 Islands Charity Poker Run Binks Memorial Fun Run Fort Myers Offshore

Limited to 12 builds per year

Your hull number
is waiting.

Every 428 takes roughly five months of hand-finished carbon-fiber work. Talk to Scott and Edwin about your build slot, your layout and your one-of-a-kind paint.

Start the conversation →