Prefab Stairs Exterior | Custom by DBM Factory
Prefab Stairs Exterior
Prefab stairs exterior arrive ready to bolt. Stringers pre-drilled, treads pre-fixed, handrail pre-cut to span. The move-fast option when the same outdoor stair repeats six, ten, or twenty times.
We build to your drawing in modular sections at our Guangdong workshop. Same finish, same size, same parts — across the whole run.
Pick Your Kit Configuration
Aluminum Kit — Lightweight Install
The everyday choice for deck retrofits and garden access. Easier to handle for a small crew. Anodized or powder-coat finish, no corrosion to chase.
Galvanized Steel Kit — Heavier-Duty Use
When the same prefab outdoor stair needs to take heavy daily traffic. Common across multi-unit buildings and back-of-house entries that repeat.
Tread Module — Aluminum or Composite
Anti-slip aluminum plank for a clean modern look. Wood-plastic composite board where you want a warmer underfoot feel. Both arrive pre-attached.
Module Sizes — Mix & Match
Standard module heights combine to match your floor-to-floor. Tread widths from narrow residential through wider commercial — built to your drawing.
Where It Fits — Four Common Project Types
Batch Renovation & Multi-Unit Development
When the same prefab stair kit repeats across many buildings. One drawing approval, one finish, and every unit lands matched. The home of prefab.
Apartment & Condo Decks
Side decks, rooftop access, fire escapes that need a tidy modular exterior stair. Bolt-together install means a small crew can get many units done in a few days.
New Home Build — Deck & Garden Access
Deck-attach bracket, helical pile, or simple pad mount. The prefab outdoor stair handles the level change without a custom one-off build.
Repeat New-Build Projects
Developments where the same outdoor staircase appears on every plan. A prefab stair kit lets your team install the same way on every site.
From Sketch to Site — Three Stages
Share a sketch, photo, or design reference — that's enough to start. We turn it into a working drawing covering modules, treads, handrail, and the anchor type for each site.
Every kit is assembled and photographed in our Guangdong workshop before being taken apart for shipping. On a repeat run, every unit gets the same check. Each part arrives labeled.
Wooden crates built for ocean freight, packed in the order your installer will assemble. Shipped to 60+ countries — including the USA, Australia, the EU, and across Asia.
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.
Prefab Stairs Exterior
When the Same Outdoor Stair Repeats — One Drawing Across a Whole Development.
Some outdoor stair projects are not one staircase at all. They are the same flight repeated across a row of townhouses, a block of balcony entries, or a garden scheme built in stages. The challenge shifts from designing a single stair toward making one design land the same way, many times over.
Owners and developers usually reach us once the wider plan is settled and the repeat becomes obvious. Every unit needs the same access, the same look, and the same dependable result on site. So the brief is no longer about one climb. It concerns a matched build that arrives consistent from the first unit through to the very last.
Why One Settled Drawing Carries the Whole Run.
A repeat order rewards the effort spent settling the very first drawing. Once we agree the modules, the treads, and the anchor detail, that single drawing governs every unit that follows. The benefit grows with the count, because the same approved build repeats instead of being redrawn building by building.
The modular method is what makes that repeat dependable. Each flight arrives in pre-drilled sections with the treads already fixed, so a small crew assembles the same way at every plot. The bolt-together method removes the field welding that would otherwise vary from one unit to the next.
So the early conversation covers the whole development, not a lone staircase. We discuss the unit count, the mounting points, and the delivery sequence together first. The working drawing then becomes a template the whole scheme can rely on, plot after plot.
How a Repeat Order Flexes With the Scheme.
A Handful of Units vs a Large Run.
The size of the order shapes how we organise it. A handful of units, perhaps six across a small terrace, ships as one matched set with shared hardware. A larger run of twenty or more rewards a tighter packing plan, where the modules nest neatly and the labels keep every unit clearly apart. The drawing stays the same while the packing scales to the count.
Uniform Sites vs Varied Mounting.
Sometimes every unit presents the same clean deck edge, so one foundation detail covers the whole development. More often the mounting varies, with a deck bracket here, a concrete pad there, and a pile footing on the soft-ground plots. We draw the alternative base configurations into the same package, so each crew picks the right one without altering the staircase above.
A Single Shipment vs a Phased Rollout.
How the project is built guides how the stairs arrive. A scheme finishing all at once accepts a single shipment, delivered together in one batch. A phased rollout instead asks for staged deliveries that match the build programme, so each group of units lands as that part of the site becomes ready.
What Coordination Looks Like for a Repeat Order.
Drawing-First Coordination begins with the first unit and the variants around it. We pin down the standard build, then add the alternative anchor details the scheme needs, before we cut any metal. The approved drawing becomes the reference we build every following unit against.
Trial Assembly Before Packing then stands the units upright across our Guangdong workshop floor. On a repeat run, each unit gets the same check, so the last flight matches the first. We photograph the result and take each one apart with care, labelling every part, so the build on your side becomes a clean bolt-together job at every location.
Export-Ready Crating then packs the units in the order your programme will raise them, whether as one batch or several. We seat the heaviest pieces low for a stable lift and keep each unit clearly separated. The crates arrive ready to open, sort, and assemble straight against the working drawing.
What to Send Us About the Scheme.
A rough sketch or a quick phone photo of a typical unit gives us a solid starting point. Add the floor-to-floor height, which simply means the climb from the lower surface up to the upper one. Then tell us how many units repeat, and whether each presents the same edge or a different one.
One further note helps us plan the delivery logistics. Tell us what each unit mounts onto, whether a deck, a pad, or soft ground, and whether you need everything together or in phases. From there we turn your notes into a working drawing and a matched run 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.
Chat on WhatsApp →Compare the Exterior Floating Stairs → · see the Custom Outdoor Curved Staircase → · browse the full Outdoor Staircase range → · or explore all our staircases →
