Yellow Sentinel flat-deck sectional steel barge with red pin-flange connection pins in the yard

Modular Barges.
Lock Them. Float Them.
Build Anything.

Sectional steel barges built by our Canadian manufacturing partner in Cornwall, Ontario, and shipped to contractors across the United States and Canada. Flat closed deck, 36,000 lb evenly distributed on the Standard Barge, and one pin-flange system that pins every section to every other. Configure yours and get a written quote in US dollars.

  • Fleet discount on orders of 4 or more barges.
  • Financing program available — ask with your quote.
  • Rush builds available.
10′ × 40′
Standard Section
36,000 lb
Standard Deckload
58 t
HD Payload / Section

The Lineup

One barge.
Built four ways.

All Barges →
Close-up of Sentinel cast double-head connector pins joining two flat-deck sectional steel barge hulls

The Sentinel System

Pin-flange.
Two pins make it solid.

Every Sentinel section uses the same pin-flange connection system with a double-head connector pin. Precisely aligned holes give a solid connection after just two pins. Many simple connections spaced close together spread stress across the whole joint so no single pin becomes a critical stress point. Pin every hole before starting a project. Standard, Heavy Duty Crane and Back Lake sections all pin together.

  • ▸Two pins make a solid connection
  • ▸Pins designed to resist corrosion jamming
  • ▸Upper pin heads support a 2×4 flush with the deck
  • ▸One system across every model in the lineup
  • ▸Double heads make connection and removal quick
  • ▸No frozen bolts or damaged bolt hardware at disassembly; pins resist corrosion jamming
  • ▸Easy assembly and disassembly make transport quick
How the system works →

Built For

Marine contractors.
Real jobs. Real water.

Bridge construction, pile driving, dredging, offshore wind support, dock and seawall construction, and marine transportation. Our manufacturing partner has built more than 900 barges operating across Canada and the United States. Built in Cornwall, Ontario, at a fabrication facility that sits on the St. Lawrence Seaway international shipping channel; a newly opened second shop has tripled production capacity. Designed to operate on rivers, canals, sounds, bays and inland lakes. Uses include heavy equipment and materials platforms, floating bridges and docks, marsh mats and custom applications, plus offshore oil, gas and wind projects of all sizes. Engineered with an engineer and marine architect, Transport Canada approved, with engineered and stamped drawings supplied with every barge.

Row of Sentinel flat-deck sectional steel barges in various hull and connector-pin color variants staged in the yard

In Stock Now

Inventory ready to ship.

Inventory can include new barges, used barges, barge accessories and specialty marine equipment. New 10′ × 40′ × 5′ sections are available for pickup with about a two-week lead time; used 20′ × 40′ × 5′ two-section barges and Canadian-built 8′ × 20′ × 4′ ready-to-deliver barges are listed too. Prices exclude taxes and delivery.

Questions

Frequently Asked Questions

Pricing, specs, lead times, and delivery — straight answers.

How much does a Sentinel sectional barge cost?
Pricing depends on the configuration — Standard 10×20 / 10×40 sections, Heavy Duty Crane 10×40×7, Back Lake 8×20, and any options (spuds, ramps, rakes, hoppers). Most contractors spec a fleet of multiple sections that lock together. Request a quote for current pricing.
What is the lead time on a new barge build?
New standard sections are typically available for pickup in about two weeks, and rush builds are available. Your exact lead time is confirmed in writing with your quote.
Can you customize a barge to my exact specifications?
Yes. Every barge ships with engineered and stamped drawings, and fully custom barges are built to your project requirements — non-standard dimensions, internal or external spuds, rake (angled bow) sections, drive-on/drive-off ramps, hopper boxes, kevels, lifting shackles, ladders, and railings. Send us your job specs and we will engineer the platform.
Do you ship barges to the USA and Canada?
Yes. We deliver throughout the United States and Canada. Sectional barges break down into truckable sections, and the Back Lake stacks two high on a truck and moves anywhere in Canada without permits. The barges are built by our Canadian manufacturing partner in Cornwall, Ontario, and quoted in US dollars.
How much weight can a Sentinel barge hold?
The Standard Barge is rated for 36,000 lb evenly distributed deckload. The Heavy Duty Crane Barge carries 58 tons with 1 ft of freeboard per 41′4″ section. The Back Lake Barge carries 20.3 tons with 1 ft of freeboard per 20′ section.
What engineering documentation comes with a Sentinel barge?
Every Sentinel barge is engineered with an engineer and marine architect, is Transport Canada approved and ships with engineered and stamped drawings. Steel conforms to CSA G40.20-13 / G40.21-13 grade 350W, welds are ¼″ fillet unless noted, and the design follows CSA S16-14.
How do the sections connect together?
Sentinel sectional barges use a pin-flange connection system with a double-head connector pin. Two pins make a solid connection, the pins resist corrosion jamming, and the upper pin heads support a 2×4 flush with the deck. Every model shares the same system. Precisely aligned holes give a solid connection after two pins; many closely spaced connections distribute stress across the joint. Pin every hole before starting a project. Double heads make connection and removal quick, and easy assembly and disassembly make transport quick.
Is there a fleet discount?
Fleet discount on orders of 4 or more barges.
Is financing available?
Financing program available — ask with your quote.
Are rush builds available?
Rush builds available. Your exact lead time is confirmed in writing with your quote.

Next Step

Tell us your project.
We'll spec the barge.

Bridge work, dredging, piling, marine construction — tell us the job and we'll come back with the model, section count, and options.

Request Quote →