Vertical Stainless Rod Railing Built for Redondo Beach Salt Air
About This Project
The homeowners had already replaced this railing once. The original installer used 304 stainless — fine inland, wrong here. Three blocks from the Esplanade, with onshore wind carrying salt spray year-round, 304 develops surface rust ("tea staining") within a couple of seasons.
We rebuilt it in 316 marine-grade stainless with vertical rod infill. Vertical was the homeowners' preference and it has a practical advantage in a coastal home: horizontal members collect salt deposits and airborne grit along their top surface, while vertical rods shed it. We also specified mechanically polished welds rather than as-welded joints, because the heat-affected zone at a weld is exactly where coastal corrosion starts.
What the Homeowner Needed
A railing that would not tea-stain like the previous one, in a vertical pattern, matching an existing settled staircase.
Challenges on Site
Matching a replacement guard to an existing stair whose treads were slightly out of level front-to-back — common in older beach homes that have settled. Every post base was individually shimmed and the cap rail scribed rather than cut to a single angle.
How We Solved It
Full 316 specification including fasteners, vertical rod infill to shed salt, and individually shimmed post bases to absorb the stair's settlement.
Project Highlights
- ✓ True 316 throughout including hardware
- ✓ Vertical infill sheds salt deposits
- ✓ Scribed to a settled stair
Common Questions
What is tea staining on stainless railings?
A brown surface discolouration that appears on 304 stainless in coastal air. It is not structural failure, but it will not polish out permanently. The fix is specifying 316 alloy from the start — including the fasteners, which are often overlooked.
How close to the ocean do I need 316 stainless?
As a working rule, anywhere the onshore wind reaches you — roughly within a mile of open water in the South Bay. If you can taste salt on a windy day, specify 316.
Project Overview
A vertical-rod guard three blocks from the water, specified in 316 stainless because 304 does not survive this microclimate.
Materials & Details
- 316 Marine-Grade Stainless Rod
- Polished Stainless Posts
- Mechanically Polished Welds
We learned the hard way that not all stainless is the same. This one still looks new after a winter of onshore wind.
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