Stainless or galvanised steel garden gate: the real difference

Weight and hinge load over the years

Stainless steel gate frames are usually built from slightly thinner box section than galvanised ones, because stainless does not need the same wall thickness to resist rust. That can make a stainless gate a touch lighter for the same size, which matters less than people expect, since the hinges and posts are the real weak point over time, not the frame material itself.

A heavy gate on undersized hinges will sag within a couple of years whichever steel it is made from. What decides how well a gate keeps its swing is hinge diameter, the quality of the weld or bolt fixing at the post, and whether the post itself is set deep and straight in concrete. Galvanised gates are more often built to a heavier practical standard because the material is cheaper per kilogram, which sometimes means a sturdier hinge is paired with it by default.

Corrosion in Harju county's coastal air

Along the Tallinn coastline and out towards places such as Viimsi or Aegna direction, salt-laden air speeds up corrosion on anything ungalvanised or poorly coated. Galvanised steel handles this reasonably well for a long time, but the zinc layer does wear thinner where the gate rubs against a latch or where a chain is looped through it, and once it is through to bare steel, rust starts locally rather than evenly.

Stainless steel resists salt air better as a rule, though not all stainless is equal. Cheaper grades can still show light surface staining or small rust freckles near the coast within a few years, particularly at cut edges or weld points that were not finished properly. For a gate within a kilometre or two of the sea, a decent stainless grade is the safer bet, but it needs to be specified and welded correctly, not just labelled stainless on a supplier's invoice.

Price and upkeep in practice

Galvanised gates are cheaper to buy or have made, often by a noticeable margin, and this gap tends to widen with gate size. For a standard garden gate the difference is usually enough to matter to most household budgets, and galvanised remains the default choice for that reason alone in a lot of Harju county gardens.

Upkeep is where the balance shifts a little. A galvanised gate benefits from an occasional check for scratched coating and a touch-up with cold galvanising spray where the zinc has worn through, particularly at the latch and hinge points. Stainless needs almost no maintenance against rust itself, but keeping the brushed or polished finish looking good means an occasional wipe to remove salt film and grit, which is a cosmetic task rather than a protective one.

If you already have posts and hinges installed and only need the gate leaf replaced or repaired, our fence repair and installation work, from 45 € per hour, covers straightforward swaps of either material without redoing the whole run.

Appearance after five and ten years

A well galvanised gate that has been painted or powder-coated on top tends to look presentable for a long time, provided the coating is not chipped repeatedly at the same spot. Left as plain galvanised finish without paint, it dulls to a flat grey and can develop light white staining in patches, which is cosmetic rather than structural but does change the look.

Stainless steel keeps its appearance more consistently over a decade, especially a brushed finish, which hides small scratches better than a mirror polish does. The main risk to appearance is not corrosion but dents and scrapes from daily use, since stainless shows impact marks clearly and they are harder to disguise than on a painted galvanised surface.

Which material we would usually recommend

For a typical house in Harju county away from the immediate coast, a galvanised gate with a good powder coat is a sound, cost-effective choice, and it is what we recommend to most customers unless there is a specific reason to spend more. It performs well, is straightforward to repair, and the price difference buys a better gate overall for the same budget.

For a property directly exposed to sea air, or where a client wants a specific look that will hold for a decade with minimal fuss, stainless earns its higher price. We would also lean towards stainless for a gate that gets handled a great deal, such as one with a childproof latch used several times a day, since the finish holds up better under constant touching.

The lock and hinges need attention whatever the material

Whichever steel the gate frame is made from, the parts that fail first are usually the lock mechanism and the hinge pins, neither of which is solved by material choice alone. A cheap padlock rusts regardless of the gate it is fixed to, and hinges without a grease point wear a groove into the pin within a few winters.

It is worth having hinges and locks fitted or replaced by someone used to outdoor ironmongery rather than relying on whatever came boxed with the gate. Our metal fitting service, from 45 € per hour, covers exactly this, and where a hinge bracket needs to be welded on rather than bolted, our welding work, from 55 € per hour, is the right call.

• Check hinge pins for wear or looping play once a year, ideally before winter
• Grease or oil hinge pivots rather than leaving them dry, even on stainless
• Touch up any bare metal on a galvanised gate as soon as it appears
• Wipe salt residue off a coastal gate a few times a year to protect the finish
• Use a weatherproof padlock or a mortice lock rated for outdoor use, not an indoor spare