Modular Barges.
Lock Them. Float Them.
Build Anything.
The Standard Sectional Barge is the barge most marine contractors buy — flat closed deck, 36,000 lb deckload, locks together to any size. Need more depth, a lighter footprint, or a fully custom platform? Same proven hull, sized for the job.
The Lineup
One barge.
Built four ways.
Standard Barge
The barge most contractors order. 36,000 lb deckload, flat closed deck, interlocking couplers. Start here, scale to any size.
Learn more →Heavy Duty Crane Barge
Same hull, 7 ft deeper. 58-ton payload per section, more freeboard — for heavy cranes and rough water.
Learn more →Back Lake Barge
Same architecture, 8 ft wide. Stacks two-high on a flatbed — no oversize permits. Built for remote and back-country sites.
Learn more →Custom Barges
Same proven hull, built to your spec. Different dimensions, deeper sections, custom options — stamped drawings included.
Learn more →
The Sentinel System
Cast couplers.
No bolts to seize.
Bright-red cast male couplers on one hull seat into matching female sockets on the next. The pair self-aligns under gravity and is retained against wave-loading uplift — no torque wrenches, no exposed threads to gall, no on-site welding. Truck to water to working deck in a single shift.
- ▸Distributed couplers spread stress across the entire perimeter
- ▸Self-aligning male-female geometry — no drift fits or wrestling
- ▸No exposed threads. Nothing to corrode shut after a season in salt water
- ▸Couplers are field-replaceable if ever damaged on the job
Built For
Marine contractors.
Real jobs. Real water.
In Stock Now
Inventory ready to ship.
New and used barges available beyond our order schedule. Fleet discount applies to orders of four or more sections.
AEO
Frequently Asked Questions
Pricing, specs, lead times, and delivery — straight answers.
- 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, and orders of four or more sections qualify for our fleet discount. Request a quote for current pricing.
- Standard sectional barges typically ship in 8–14 weeks from order confirmation, depending on order size and shop schedule. Heavy Duty Crane Barges and fully custom builds run 12–20 weeks. We also keep a rotating in-stock inventory of new and used sections — see the Inventory page for what's available now for immediate delivery.
- Yes. Every barge ships with engineered and stamped drawings, and our shop builds fully custom barges 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.
- Yes. We deliver throughout Canada and the United States by truck — sectional barges break down to fit standard truckable loads (the Back Lake even stacks two-high without permits). For overseas projects we coordinate ocean freight from the Port of Montreal. Our shipyard is located in Ontario, Canada.
- Our Standard Barge is rated for 36,000 lb evenly distributed deckload. The Heavy Duty Crane Barge supports a 58-ton payload per 41′4″ section with one foot of freeboard. The Back Lake Barge handles 20.3 tons per 20′ section.
- Yes. Every Sentinel barge ships with engineered and stamped drawings and is Transport Canada approved. Steel conforms to CSA G40.20-13 / G40.21-13 grade 350W and welding meets CSA W59 standards.
- Sentinel sectional barges use an interlocking coupler system — a cast male coupler seats into the matching female socket on the adjoining section on adjacent sections. It seats positively, doesn't jam from corrosion, and can be field-disconnected for redeployment. No bolting, no welding on site.
How much does a Sentinel sectional barge cost?+
What is the lead time on a new barge build?+
Can you customize a barge to my exact specifications?+
Do you ship barges across Canada, the USA, and worldwide?+
How much weight can a Sentinel barge hold?+
Are Sentinel barges Transport Canada approved?+
How do the sections connect together?+
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.