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Deck Railing Cost Calculator
Price deck railing by the linear foot, in the material you actually want — and find out whether the code requires a guard here at all.
Why your estimate is what it is
What drives deck railing costs in La Jolla
Railing is priced by the linear foot, and the spread between the cheapest and most expensive option is close to five to one. On a small deck it can be a quarter of the whole project. This calculator prices deck runs and stair runs separately, because stair railing costs more per foot, and it flags the California guard height rule that catches most people importing a railing kit from out of state.
Material
Pressure-treated wood runs $35 to $70 a linear foot, cedar or redwood $45 to $85, composite $45 to $90, cable $70 to $150 and glass $100 to $200 or more.
Guard height
Where a guard is required, California wants 42 inches, not the 36 inches common elsewhere. Taller posts, more material, and a common reason kits get rejected.
How far the drop is
Under 30 inches, no guard is required at all and anything you build is a design choice. Over about six feet, expect the post connections to get real scrutiny at inspection.
Stairs
Stair railing runs about 35% above deck railing per foot — everything is cut on an angle, and California wants a graspable handrail in addition to the guard.
Shape of the run
Straight runs with square corners are cheapest. Angles and bays add posts. Curves mean custom fabrication.
Removing the old railing
Straightforward if the posts are sound — a few dollars a foot. If the posts are rotten, the post bases and blocking need rebuilding first, and that is framing work.
What could push your price higher
- Glass or cable infill instead of wood or composite
- Curved sections or several changes of angle
- Rotten posts that need the framing rebuilt underneath
- Post-cap and under-rail lighting
- A drop of more than six feet, which means taller posts and heavier blocking
- Self-closing gates and pool-barrier compliance
What could bring it down
- Wood or composite infill rather than cable or glass
- Straight runs with square corners
- Sound existing posts that can carry a new rail
- A drop under 30 inches, where no guard is required at all
- Doing the railing at the same time as other deck work, so the crew is already on site
Turn the estimate into a real number
This calculator works from published 2026 cost figures for coastal San Diego. It cannot see your framing, your flashing, how a crew would reach the work, or what is behind the siding at the ledger — and those are exactly the things that decide a real price. We will come out, measure, and give you a written scope with no pressure attached.
Book a free site visitFrequently asked questions
How much does deck railing cost per foot in La Jolla?
Pressure-treated wood runs about $35 to $70 a linear foot installed, cedar or redwood $45 to $85, composite $45 to $90, powder-coated aluminium in a similar range, cable $70 to $150 and glass panel $100 to $200 or more. Stair railing costs roughly a third more per foot than deck railing.
How high does a deck railing have to be in California?
42 inches where a guard is required. That is the California requirement and it is higher than the 36 inches used in much of the country — one of the more common reasons an out-of-state railing kit will not pass inspection here. A guard is required wherever the walking surface is more than 30 inches above what is below it.
Do I need a railing on a low deck?
Not if the walking surface stays within 30 inches of the ground below it. Below that threshold the code does not require a guard, so anything you build is for looks, for children or pets, or to define the edge — which also means you are free to use a shorter rail or none at all.
Is cable railing worth it?
On a deck with a view, usually — that is the entire argument for it. Cable costs roughly twice a composite rail and gives you a nearly uninterrupted sightline. On a deck facing a fence it is money that would do more elsewhere. One thing to plan for: every cable is under tension pulling the end posts inward, so those posts and their connections have to be substantially built.
How long does glass railing stay clean near the ocean?
Not long. Salt spray shows on glass within days in La Jolla, and a glass rail that is not cleaned regularly looks worse than a cable rail that is never cleaned at all. It is still the best option for an unbroken view — just budget the time or the window cleaner.
Can I just replace the railing and keep the deck?
Often yes, and it is one of the better value improvements to a tired deck. The condition of the posts is what decides it: if the post bases are sound and bolt into solid framing, a new rail goes straight on. If they are soft, water has been getting into the frame at the post bases and the problem is bigger than the railing.
Related calculators
Planning the whole project? Start at the La Jolla deck cost calculator hub, or read more about our Deck Railing Installation service.