Galvanized Steel Fabrication Shipped Across Canada

The two questions that decide whether a fabricated grate or steel assembly lasts are rarely about the steel itself. They are: how is it finished, and how does it arrive intact on a site two thousand kilometres away? We fabricate in-shop in Ontario and handle galvanized steel fabrication shipped across Canada every week, so finishing and freight are not afterthoughts in our process. They are designed in from the first drawing.

This guide explains how we approach hot-dip galvanizing for grates, where powder coat and duplex systems fit, how to design steel so it galvanizes cleanly, and how crating and nationwide freight actually work for grates and metalwork.

Hot-Dip Galvanizing for Grates: The Canadian Workhorse

For exterior steel in a Canadian climate, hot-dip galvanizing is the default for good reason. The part is cleaned, fluxed and dipped in molten zinc, which metallurgically bonds to the steel and forms a coating that protects both as a barrier and sacrificially at any scratch or cut edge. That sacrificial behaviour is what makes it forgiving on site, where coatings inevitably get nicked.

For bar grating, trench drain grates and catch basin grates exposed to rain, road salt and freeze-thaw, hot-dip galvanizing routinely delivers decades of service before first maintenance.

We galvanize to the relevant CSA/ASTM coating-thickness specifications and arrange dipping with established galvanizing partners; we do not run an in-house kettle, so when we say a piece is galvanized to spec, that means we manage the process and verify the result rather than overstating what happens under our own roof.

Where Powder Coat and Duplex Systems Fit

Powder coat is a colour and appearance decision more than a corrosion decision. Applied directly over bare steel it gives clean colour but limited long-term protection in harsh exterior service, because once the film is breached the steel underneath has no backup. The stronger approach is a duplex system: hot-dip galvanizing first, then powder coat over the prepared zinc.

You get the sacrificial protection of zinc and the colour, UV stability and smoother finish of powder, and the two systems together typically outlast the sum of their individual lifespans. Duplex is what we usually recommend when an architectural screen, railing or visible custom grate has to be both a specific colour and durable outdoors.

For interiors, wash-down or hygienic environments, stainless steel is often the better answer than any coating at all, which is why our stainless steel floor grates exist as a separate product line.

Designing Steel That Galvanizes Cleanly

Galvanizing quality is decided on the drawing board, not at the kettle. Molten zinc has to flow into, through and back out of every part of the assembly, and trapped air or trapped zinc ruins both the coating and the part. The practical rules are straightforward once you build to them, and we resolve them in our drawings before anything is cut.

• Vent and drain holes: Hollow sections, tube frames and box assemblies need correctly sized and positioned holes so air escapes on the way in and molten zinc drains on the way out. Skip them and you risk a blowout, an uncoated interior, or zinc that solidifies as dead weight inside the member.
• Distortion control: Galvanizing heats steel to around 450 °C, and uneven or highly stressed sections can warp. We balance plate thicknesses, sequence welds and detail symmetrical assemblies to keep thin, wide or long pieces flat through the dip.
• Continuous welds and clean details: Overlapping surfaces and skip welds can trap cleaning chemicals that later bleed and stain. Continuous seal welds at critical joints keep the coating uniform.
• Bath-size awareness: Large grates, access platforms and long structural steel members may exceed a single kettle and require progressive dipping or designed splices. We plan piece sizes around the bath up front so a part never arrives at the galvanizer impossible to dip.

Matching the Finish to the Environment

There is no single best finish, only the right finish for where the steel lives. A dry interior mezzanine, a salted municipal sidewalk, a coastal platform and a food-grade wash-down room are four different corrosion problems. We match the system to the service condition, and our metal and finish guide lays out the comparison in detail so engineers and specifiers can choose with confidence.

Environment	Typical recommendation	Why
Dry interior	Galvanized or painted mild steel	Low corrosion load; cost-effective
Exterior, salted / freeze-thaw	Hot-dip galvanized	Barrier plus sacrificial protection at edges
Exterior, colour-critical	Duplex (galvanize + powder coat)	Durability with specified colour and UV stability
Wash-down / hygienic	Stainless steel	Cleanability and chemical resistance
Coastal / aggressive chemical	Stainless or heavy duplex	Chloride and chemical exposure exceeds zinc alone

For a deeper side-by-side on coatings and metals, our post on galvanized vs stainless vs powder-coated grates walks through how each option ages in real service, and the grate load class guide helps you pair the right finish with the right structural rating.

We Build From Your Drawings, and We Produce Full Shop Drawings

Finishing decisions only hold up if they are documented and coordinated, which is why drawings sit at the centre of how we work. We collaborate directly with the engineers and architects on a project, and every fabrication we ship leaves the shop backed by complete shop drawings and, where the assembly carries load or ties into structure, full structural drawings.

Galvanizing vent and drain holes, weld sequencing, splice locations and finish callouts are all resolved on those drawings before a single part is cut, so nothing about the finish or the corrosion strategy is improvised at the kettle or on site. Bring us a stamped engineering set, an architectural intent, or a rough sketch with loads and a service environment, and we will turn it into a buildable, fully dimensioned package.

Engineers can see how we handle load and connection detailing on our page for engineers, and architects can see how we carry pattern and finish intent through to fabrication on our page for architects.

Crating and Freight: How Nationwide Shipping Actually Works

A perfectly finished grate is worth nothing if it arrives bent, rubbed bare, or short a piece. Shipping across Canada is part of the fabrication, not a hand-off, so we crate and palletize for the trip, not just for the loading dock. Grates are stacked and banded with edge protection so the galvanized surface is not chafed in transit, structural members are bundled and dunnaged to prevent racking, and assemblies are blocked so they cannot shift.

Frames, fasteners and loose components ship clearly labelled and tied to the drawing set, so the crew on the other end knows exactly what mates with what. We coordinate LTL and flatbed freight to sites across every province, and we work with general contractors on delivery sequencing so material lands when the site is ready for it rather than weeks early.

Whether you are a general contractor staging a phased install or a property manager handling a single replacement, the goal is the same: it arrives complete, protected and ready to set.

Supply-Only or Supply-and-Install

Because we ship nationwide, most projects outside our immediate region are supply-only, with a clear drawing package and labelled crating so your installer can set the work confidently. Where it makes sense, we also offer supply-and-install. This flexibility applies across the catalogue, from heavy-duty grates and metal stairs to grate replacement programs that keep a facility's worn grates on a managed refresh cycle.

One Shop, From Finish to Freight

Galvanizing for grates, duplex finishes for visible metalwork, stainless where coatings will not do, design that lets zinc flow, and crating that survives the highway: these are not separate vendors to manage, they are one coordinated process under one set of drawings. We fabricate in Ontario, finish to your service environment, and handle galvanized steel fabrication shipped across Canada so the steel you specified is the steel that gets installed.

Explore our galvanized grates, browse the full range on our homepage, or talk through your finish and freight requirements with us directly.