Four decades of plastic injection moulding for South Africa's construction and fiber telecoms industries. We supply chair spacers, wheel spacers, piping spacers, piling cage spacers, manhole steps (steel-encapsulated or fully plastic for access chambers), and a full range of concrete and civils accessories — manufactured in Kew, Johannesburg.
Sierra Fiber has been moulding plastic components from our Kew, Johannesburg facility since 1984. We supply the construction industry with reinforcement spacers, and the fiber telecoms sector with splice enclosures and mounting hardware — all manufactured in-house.
Forty-plus years moulding plastic parts for South African industry. The track record speaks before we do.
Plastic injection moulding done under our own roof. You're buying direct from the manufacturer — no markup, no middleman.
Components for reinforced concrete works and fiber-optic installations. Three specialised divisions under one operation.
Every component is plastic injection moulded at our Johannesburg facility. We don't list prices online — quotes are tailored to volume, specification and delivery. Contact us and we'll come back quickly.
The hardware that keeps rebar correctly positioned in slabs, columns, piles and footings. Manufactured across the full range of standard sizes the civils trade depends on — supplied to contractors of every size across South Africa.
Cylindrical spacers that maintain pipe position within concrete pours.
18 sizes available, from PS10 to PS80
PS10 · PS13 · PS16 · PS19 · PS22 · PS24 · PS26 · PS29 · PS32 · PS34 · PS38 · PS40 · PS45 · PS48 · PS51 · PS55 · PS71 · PS80
Support rebar at the correct cover height in slabs and floor reinforcement.
11 sizes available, from CH15 to CH100
CH15 · CH20 · CH25 · CH30 · CH35 · CH40 · CH50 · CH60 · CH70 · CH75 · CH100
Maintain rebar cover in columns and circular formwork.
23 sizes available, from WH12 to WH50
WH12 · WH SM · WH 4/20 · WH 8/20 · WH 9/28 · WH 10/20 · WH 12/24 · WH 10/28 · WH 11/20 · WH 12/28 · WH 7.1/25 · WH 6.3/25 · WH 10/30 · WH 12/30 · WH 16/30 · WH 18/35 · CS10 · WH15 · WH11/15 · WH25 · WH30 · WH40 · WH50
Versatile rebar support across multiple bar diameters and applications.
UCH 20 · UCH 30 · UCH 40 · UCH 50
Keep rebar cages centred during piling and column pours.
CN20 · CN23 · CN25 · Dynamic Centraliser (20mm, 25mm, 32/40mm)
Protect exposed rebar ends — required on most South African sites.
Type B, Stud and Safety variants
Type B Caps (TB 4mm – 7.1mm) · Stud Caps (SC/1R, SC/4.5, SC/5, SC/5.6, SC/6.3, SC/7.1) · Safety Caps (8–16mm, 16–32mm)
Climbing steps for access chambers, manholes and pump stations.
Plastic Steps (Harpoon / Grapple / Punch-in) · Metal Steps · Step Ladder · Galvanized Bent Steel
Semi-circular profile spacers for curved or non-standard formwork.
Moulded plastic half-moon profile spacers
Spacer cages used in deep foundation piling to position reinforcement.
P/C 50mm · P/C 75mm
We manufacture splice enclosures and the mounting brackets that hang larger enclosures into place — supplying fiber rollouts across South Africa, including Vumatel.
Designed to bring a high-speed fibre connection and greater bandwidth closure to home and business. FTTH offers the user flexibility, with a compact, UV and water-resistant build for indoor or outdoor mounting.
A growing range of moulded plastic bollard lights, manufactured in-house with the same precision as our industrial components. Available in green, silver and black finishes — with the range expanding.
Green · Silver · Black finishes
New finishes & styles in development
We compete on the two things that actually matter to a buyer in this trade — price and delivery — and we've been doing it since 1984.
Manufacturer-direct rates with no reseller margin. We compete hard on price and the numbers show it.
Delivery within Gauteng is on us. Anywhere else in South Africa, we'll arrange courier at courier cost — no markup.
Founded in 1984. A manufacturer that's still here after four decades has proven the thing that matters most: reliability.
Supplier to major fiber rollouts including Vumatel, plus civils contractors of every size across South Africa.
Call, email, or message us on WhatsApp. We respond fast — usually same day — and we'll have a quote in your hands within 24 hours.
Message us on WhatsAppFill in the details and we'll respond within one business day with a quote.
Johannesburg, South Africa. Collections welcome by arrangement — please call ahead.
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