Taking you to the next level, step by step.
Prostep is trusted to deliver precast staircases, lintels and concrete components for residential, commercial and industrial sites.
A South African precast manufacturer, building since 1996.
Prostep manufactures and installs reinforced precast staircases, lintels and concrete components from our yard in Witbank, Mpumalanga. Three decades on site has taught us that the building's safety depends on what arrives — so every component is engineered to SABS and SANS standards, sized for hand-placement, and ready to install.
About us
Concrete that lasts
From precast staircases and lintels to columns, cills and decorative brickwork — every Prostep component is engineered to spec, ready to install, no crane required.
Structural Lintels
Reinforced precast structural lintels, engineered to carry load over door and window openings across residential, commercial and industrial builds. Cast to SABS and SANS standards in Witbank and delivered sized for hand-placement — no crane, ready to install.
- Standard & maxi profiles
- Engineered to spec
- SABS / SANS compliant
Trusted by South Africa's leading builders.
An established partner for South Africa's contractors, developers and architects — trusted by Glencore, Raubex, Central Development and others for precast staircases and lintels that arrive ready to install. See where we've worked.
Projects
A four-storey
stair core.
Drawing 1956 L3/44, cast in Witbank and installed flight by flight. Turn the model around, then see it go up on site.
Featured project Move your cursor across to look insideExpert insights
Engineered to SABS & SANS standards
How we cast, test and certify every staircase, lintel and column at the Witbank yard — and why standards matter more than schedules when the building's safety depends on them.
- SABS 0144 reinforcement and cover
- SANS 282 precast lintel certification
- 30 MPa minimum cube test on every pour
No crane required: the install philosophy
Why every Prostep component is sized for hand-placement. Eliminates form work, eliminates screeding, and gets the next level walkable on day one — even on the tightest residential site.
- Two installers, hand tools, one day
- No formwork, no propping, no screed
- Level walkable the same day it's set
From single home to mega city
Inside the Ellijay Barayi Village rollout — how the same Prostep staircase system that goes into a family home scaled to one of the largest residential builds in Mpumalanga.
- 1,200+ precast staircases delivered
- Zero on-site casting, zero rework
- Three I Development · 2022–2024