Stainless steel or galvanised steel: which to choose

What actually separates stainless and galvanised steel

Galvanised steel is ordinary mild steel with a zinc coating applied over it, usually by hot-dip galvanising. The zinc corrodes instead of the steel underneath, so as long as the coating stays intact the base metal is protected. If the coating is scratched or cut through, that spot becomes vulnerable, though the zinc immediately around it still offers some protection.

Stainless steel is a different alloy altogether, with chromium mixed through the whole thickness of the metal rather than coated on top. That chromium forms a thin oxide layer on the surface that keeps renewing itself, so a scratch does not expose bare, unprotected steel underneath the way it does with galvanising.

In practice this means galvanised steel relies on an outer layer staying whole, while stainless steel resists corrosion all the way through. That difference is what drives most of the cost and appearance questions below.

Which one looks better

Galvanised steel has a dull, slightly matte grey finish with a faint crystalline pattern from the dipping process. It is not unattractive, but it reads as a working, industrial material, and most people paint or powder-coat it once it is up rather than leave it bare.

Stainless steel has a smoother, brighter finish that can be left as it is. A brushed or satin stainless railing looks deliberate and tidy on a newer house or a renovated flat, and it keeps that look for years without repainting.

For a gate or fence that is going to be painted anyway, the difference in appearance matters less, since the coating hides the base material. For an exposed railing on a balcony or staircase where the metal itself is the finish, stainless is usually the better-looking choice.

Which holds up better in the Estonian climate

Both materials are used outdoors in Estonia without trouble in the great majority of cases. Galvanised steel is the standard choice for garden fencing, gate frames and general outdoor structures across the country, and it copes well with freeze-thaw cycles, rain and road salt splashed up from nearby streets in winter.

Stainless steel has the edge in spots with more persistent moisture or salt exposure: close to the sea in places like Pirita or Viimsi, on structures that stay wet for long periods, or anywhere the coating on galvanised steel would be difficult to inspect or touch up, such as buried fence posts or fittings tucked into tight corners.

Where galvanised steel loses ground is at cut edges, drilled holes and welds made on site, since those expose bare steel that needs re-coating with a zinc-rich paint to stay protected. Stainless steel does not have that weak point, because the corrosion resistance runs through the material rather than sitting on the surface.

Which one is cheaper

Galvanised steel is the cheaper material by a clear margin, both as raw stock and as finished fittings such as brackets, posts and mesh. It is the reason most fences, garden gates and utility structures in Estonia are built from it rather than from stainless.

Stainless steel costs noticeably more, and it is also slower and more particular to weld, which shows up in labour time as well as material cost. For a small railing the difference might be manageable; for a long run of fencing or a large gate it adds up quickly.

The gap is wide enough that it is worth deciding early which material a project needs, rather than switching partway through. A fixed quote after seeing photos or a description will usually make the price difference concrete rather than abstract.

What we usually recommend

There is no single right answer, and the choice usually comes down to location, visibility and budget together rather than any one factor. For most gardens and general fencing in Tallinn and Harju county, galvanised steel does the job well and costs less.

Where the metal is on display, or where the site is genuinely damp or salty, stainless steel earns its higher price. If you are unsure which category your project falls into, describing the site and what it is for gets you a straighter answer than guessing from a materials list.

• Garden fences, gate frames and general outdoor structures away from the coast: galvanised steel, painted or powder-coated
• Balcony and staircase railings where the metal is visible and part of the look: stainless steel
• Structures near the sea, in Pirita, Viimsi or similar exposed spots: stainless steel, or galvanised with a good factory coating kept in mind for regular touch-ups
• Anything with buried posts, tight welds or spots that are hard to inspect later: stainless steel, since there is no coating to fail out of sight
• Budget-driven projects where appearance is secondary: galvanised steel

How this works with us

We build steel structures from 250 € per job, with the fixed price set after seeing photos or a description of what you need, and it holds for 30 days so you can plan around it. Straightforward welding work, including repairs or extensions to something already standing, is billed at 55 € per hour.

Fence repair and installation is charged from 45 € per hour, whether that means replacing rotten posts, rehanging a gate, or fitting new mesh to an existing frame. All work we do carries a 24-month guarantee, which covers the work itself rather than wear from weather or misuse.

If you send us a photo of the site and a rough idea of size, we can tell you fairly quickly whether galvanised or stainless makes more sense for that particular spot, and give you a number to work from before anything is ordered.