Our shop is in Ventura, California, a few miles from the Pacific, so we see what salt air does to metal every day. A handrail that would last decades inland can start showing rust spots within a year or two on a beach house. If you live within a few miles of the ocean, the metal you choose matters more than the style.
The short answer
- Right on the water or in direct salt spray: 316 marine-grade stainless steel
- Coastal, but not in direct spray: aluminum
- A few miles inland, or a covered porch: powder-coated steel works, with some upkeep
316 stainless steel: the marine-grade choice
Stainless steel resists rust because of the chromium in it. 316 stainless adds molybdenum, which specifically resists chlorides, the salt in sea air. It's the same grade used on boats and docks. Standard 304 stainless is great almost everywhere, but in direct salt spray it can develop light surface staining, called tea staining, over time. 316 holds up better.
Brushed stainless also looks sharp on modern coastal homes. See our stainless steel handrail, and if you're near the water, ask for 316 in your quote.
Aluminum: can't rust at all
Aluminum doesn't contain iron, so it can't rust. It forms a protective oxide layer instead. Powder-coated aluminum is lightweight, low maintenance and usually costs less than stainless, so it's a great pick for exposed steps and decks near the coast.
See the aluminum handrail.
Powder-coated steel: strong, but needs care at the coast
Steel is the strongest and most affordable option, and a good powder coat protects it well. The weak point is any chip or scratch: once salt air reaches bare steel, rust can creep under the coating. If you choose steel near the coast:
- Rinse the rail with fresh water every few months to wash off salt
- Touch up chips right away. We include touch-up paint with every order.
- Use stainless hardware
More tips are in our guide to maintaining powder-coated railings.
Don't forget the hardware
A stainless rail mounted with plain steel screws will still show rust streaks. On coastal installs, make sure the brackets, screws and anchors are stainless too. Tell us your location and we'll send the right hardware.
Quick comparison
- 316 stainless: best salt resistance, premium look, highest price
- Aluminum: rustproof, lightweight, mid-price
- Powder-coated steel: strongest, lowest price, needs upkeep near salt
Get a rail built for your climate
Every rail we make is built to your measurements, and we'll recommend the right metal for where you live. Send us your measurements, a photo and your ZIP code.
Get a free quote or call/text (805) 394-8984.
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