Custom Outdoor Curved Staircase | Custom by DBM Factory

Custom Outdoor Curved Staircase

An outdoor curved staircase turns the approach into a sculptural arc. Where a straight run would feel utilitarian, the sweep becomes the garden's quiet centerpiece.

We custom-roll each stringer to your shop drawing radius. Share a sketch, photo, or plan, and we'll work out the curve, the treads, and the fit.

Decide the Curve, the Tread, and the Finish

Where It Fits — Four Common Project Types

From Sketch to Site — Three Stages

After delivery, your contractor or installer handles fitting. We provide an assembly guide and a step-by-step video. Where local installation is available in your region, we can help you find a vetted installer.

Custom Outdoor Curved Staircase

When the Stair Follows the Land — A Sweeping Approach Across a Sloping Garden.

A curved outdoor stair does more than join two heights. It shapes the way a person arrives, drawing a graceful line from a terrace down toward a lawn or a courtyard. Where the ground itself falls away across a slope, that sweeping curve can follow the land instead of cutting harshly against it.

Owners usually reach us once the garden has a clear level change and a straight flight feels too blunt for it. They want the descent to feel generous and deliberate, part of the landscape rather than bolted onto it. So the brief is really about the arrival, and how the arc settles naturally into the slope and the planting around it.

Why the Ground Shapes the Curve Before the Look Does.

The fall of the land sets the geometry long before anyone admires the sweep. A gentle slope lets a wide, relaxed radius unfold across the garden, so the curve reads as an easy, open gesture. A steep drop instead asks for a tighter arc or a turning flight, because the same height now has to resolve within a shorter horizontal reach.

What the curve lands on matters just as much as its shape. A stair meeting soft, sloping soil needs structural footings detailed for that uneven ground, positioned at the right elevations to keep every tread true. A landing onto firm paving or a stone terrace gives a simpler foundation, yet the transition still has to sit flush so the arrival feels seamless.

So the early conversation studies the contour as closely as the styling. We examine the slope, the levels, and the surrounding planting together first. The working drawing then shapes the radius and the tread geometry around the land you genuinely have.

How the Sweep Adapts to the Garden It Sits In.

A Gentle Slope vs a Steep Drop.

The steepness of the ground drives the whole geometry. A gentle fall invites a broad, sweeping radius that spreads across the garden in relaxed proportion. A sharp drop calls for a tighter curve, or a flight that turns around a mid-landing, so the descent stays comfortable underfoot rather than steep. We shape the arc to the gradient you have, never to a fixed catalogue dimension.

A Formal Courtyard vs a Natural Garden.

The character of the setting guides the materials and the line. A formal courtyard suits a symmetrical sweep with stone-edged treads and a measured, even rhythm. A looser, planted garden welcomes a softer curve with timber treads and a cable railing, so the stair settles quietly among the planting rather than dominating it.

A Single Sweep vs a Turning Flight.

The height and the available space decide whether one curve is enough. A modest level change resolves in a single graceful sweep, unbroken from top to bottom. A taller descent often reads better as a turning flight with a generous landing, which breaks the climb into two calmer arcs and gives a natural pause along the way.

What Coordination Looks Like for a Curved Garden Stair.

Drawing-First Coordination begins with the slope and the elevations the curve must connect. We pin down the upper terrace, the lower landing, and the footing positions across the uneven ground before we cut any metal. We resolve the radius and the tread geometry here too, so the rolled stringer suits the contour your side prepares.

Trial Assembly Before Packing then stands the whole curved flight upright across our Guangdong workshop floor. We fit each tread to its place along the arc, apply the finish, and review the sweep one step at a time. We photograph the result and take it apart with care, labelling every part, so the build on your side becomes a clean, ordered job rather than guesswork on the slope.

Export-Ready Crating then protects the rolled stringer and the shaped treads across the long ocean passage. We pack the parts in assembly order and seat the heaviest pieces low for a stable lift. The crate arrives ready to open, sort, and raise straight against the working drawing.

What to Send Us About Your Garden.

A rough sketch or a quick phone photo of the slope and the approach gives us a solid starting point. Add the floor-to-floor height, which simply means the climb from the lower level up to the terrace above. Then tell us roughly how the ground falls between the two, whether gently or steeply.

One further note helps us shape the sweep. Tell us what the lower end lands on, whether soil, paving, or stone, and the feeling you want, formal or natural. From there we turn your notes into a working drawing and a stair ready to ship.

After delivery, fitting is on your side — on site, your contractor or installer handled fitting directly from our drawings. Follow our assembly guide and step-by-step video, or use your own local installer where needed.

Compare the Outdoor Spiral Staircase → · see the Metal Staircase Outdoor → · browse the full Outdoor Staircase range → · or explore all our staircases →