How Much Does a New Staircase Cost?
By Dave Emery, Owner & Stair Builder Updated August 2026
Every staircase we build is a one-off, so the honest answer to "how much" starts with a range, not a single number. A straight-run staircase in a standard material sits at one end of that range; a fully custom design in premium wood, welded steel, or glass sits at the other. What narrows the range for your project is covered below. Then you can run your own numbers in a couple of minutes.
What a new staircase costs
A new staircase typically prices out somewhere between a straightforward straight-run build in a standard material and a fully custom design with premium materials or complex geometry. Straight runs in standard wood cost less because they require less engineering and simpler fabrication. Curved, spiral, floating, or multi-level designs in premium materials cost more because they require more of both: more design time, more skilled labor, and often more code-driven scope.
The cost to build stairs also depends on whether you're starting from a blank opening (new construction) or working within an existing footprint. A brand-new opening gives more design freedom but also means the staircase carries more of the structural load-bearing decisions on its own.
If you want a number specific to your project instead of a general range, our stair cost calculator walks through the same factors below and gives you a starting estimate in a few minutes. No need to guess.
What drives the price up or down
A handful of things move a staircase quote more than anything else.
Material
Wood, steel, and glass all price differently, and so do the grades within each. A budget-friendly softwood costs less than a hardwood like white oak or walnut; standard steel costs less than a mirror-polished or blackened stainless finish. See wood species options or steel and metal finishes to compare what's available.
Design complexity
A straight run is the cost floor. Curved, spiral, floating, or multi-level designs all add labor and engineering before a single piece gets cut. The more geometry involved, the more time it takes to plan and build correctly.
Labor
Skilled fabrication time is often the single biggest driver of the cost to build stairs. Welded steel and custom joinery simply take longer than assembling stock parts, and that labor time is most of what separates a budget staircase from a custom one.
Permits & inspection
Structural stair work in Portland requires a permit, and code requirements can add scope you didn't plan for: a required landing, a different run than the existing opening allows, or a handrail that wasn't there before. See our Oregon stair code guide for permit and code basics.
Site conditions
Access to the space, whether an existing staircase needs to be torn out first, and whether the floor framing needs structural changes all add labor time before the visible staircase work even begins. A staircase going into a tight stairwell in an older home with limited access is a different job than the same design going into an open, easy-to-reach new-construction space, even if the finished staircase looks identical.
Why estimates vary so much between builders
Two builders can look at the same staircase and land on very different numbers, and it's usually not because one is padding the bid. It's because "material," "complexity," and "site conditions" get weighed differently depending on how a shop is set up to build: what they fabricate in-house versus sub out, what their current shop schedule looks like, and how much contingency they build in for the site conditions above. Asking any builder to itemize labor, materials, and permits separately (see the accordion below) is the fastest way to compare bids that otherwise look nothing alike.
Cost by staircase type
Once you know the floor and ceiling of the range, it helps to see where common staircase types tend to fall relative to each other.
Straight staircase
the cost floor. Simplest fabrication, simplest engineering, fewest surprises.
Spiral staircase
costs more than a straight run because a compact helical structure is harder to engineer and build, even though it takes up less floor space.
Floating staircase
a premium option, priced up by the steel stringer engineering and cantilevered tread fabrication it requires. See how floating stairs are built.
Hardwood staircase
costs more than a standard softwood build on material grade alone, before any design complexity is even factored in. Browse wood staircase design options by species.
Why in-house fabrication matters for your price
Most stair companies sub out the metalwork: they design the staircase, then send the steel stringer or railing out to a welding shop and mark up whatever comes back. Stumptown builds both sides in-house: wood fabrication and welded steel, under one roof, since 2016. That matters for your price in a practical way. Fewer subcontractor layers means fewer markups stacked on top of each other, and it means the person quoting your steel stringer is the same person building it, not relaying a bid from a shop that's never seen your site.
It also means a mixed-material design (wood treads on a welded steel stringer, for example) doesn't require coordinating two separate vendors on two separate timelines. That's one less place for cost (and schedule) to slip.
New build vs. remodel — which guide do you need
This guide covers new and replacement staircases: a project where the staircase itself is being built or rebuilt. If your staircase already exists and you're refinishing or updating its look rather than rebuilding it, that's a staircase remodeling project, and the costs work differently. Head there instead of trying to map remodel pricing onto a new-build range.
How do stair builders estimate cost?
A real estimate itemizes labor, materials, and permits separately rather than handing you one lump number. Ask any quote (ours included) to break those out, so you can see exactly what you're paying for and compare bids apples to apples if you're getting more than one.
What should be in a written stair proposal?
A proposal should spell out the project scope, specific material specs (species, finish, steel grade), a timeline, a payment schedule, and warranty terms. If any of those five pieces are missing, ask for them in writing before you sign anything.
Is a custom staircase worth the investment?
A well-built staircase is one of the few structural features buyers and guests notice the moment they walk into a home. It's hard to put a single number on resale value since that depends on your market and the rest of the house. But a staircase built to last, and built to code, is one of the few interior features doing real structural and first-impression work at the same time.
Do I need a permit to build a new staircase?
Structural stair work in Portland and Oregon generally requires a permit. Our Oregon stair code guide covers the permit basics and what the inspection process looks like.
Does a bigger staircase always cost more than a smaller, more complex one?
Not necessarily. Size matters, but complexity usually matters more: a large straight run in standard material can cost less than a small, tightly engineered spiral or floating staircase, since complexity drives the labor and engineering time that size alone doesn't. If you're comparing two very different staircase types, don't assume the bigger footprint is automatically the bigger bill.
Still Wondering About Staircase Cost?
How much does it cost to build a straight staircase?
A straight run is the cost floor for a new staircase, since it needs the least engineering and the simplest fabrication. It's the best starting point if budget is the primary driver behind your design.
What's the cheapest staircase material?
Standard softwood construction generally costs less than hardwood, steel, or glass: without sacrificing safety or code compliance, just the premium look and feel of higher-end materials. If budget matters most, material is usually the first place to adjust. Rather than guessing what "budget" means in real dollars, get your own number so you can see the actual trade-off for your project.
Does Stumptown Stairs offer free estimates?
The online estimate is free and gives you a starting range in minutes. A firm quote comes from a paid site visit, where we measure your actual space, confirm material availability, and account for anything specific to your site. That's what turns a range into a number you can build a budget around.
Are open-riser or glass-tread designs more expensive than a solid staircase?
Generally yes. An open riser or a glass tread adds engineering and fabrication steps a solid wood or steel tread doesn't need, on top of the material cost itself. See modern staircase design for where that style shows up most and what it looks like finished.