Timber & Composite Decking Installations

Structural Precision

Outdoor Timber Engineering Built to Endure

A truly great deck relies on precision beneath the surface. We engineer robust, level substructures using CCA-treated framing timber, stainless steel fasteners, and concealed clip fixings to prevent cupping, warping, and premature degradation under the South African sun.

Whether you prefer the natural richness of exotic hardwoods like Balau and Garapa or the zero-maintenance longevity of high-performance capped composite decking, our carpenters deliver clean perimeter step mitres, flush poolside junctions, and integrated timber pergolas.

✓ Hardwood options: Balau, Garapa, Thermo-treated timber

✓ Capped composite decking with concealed clip fixings

✓ Precision substructure framing & pool coping detailing

Natural Hardwood Decks

Ethically sourced Balau and Garapa timbers, precision-planed, sealed, and installed for a timeless, organic architectural finish.

Capped Composite Decking

UV-resistant, splinter-free, and stain-resistant composite boards with concealed fastener clips for a sleek, screw-free surface.

Pool & Patio Integrations

Multi-level platforms, cantilevered pool surrounds, sunken fire pit seating, and flush timber transitions to interior tiled floors.

Highveld Outdoor Timber Engineering

Hardwood vs. Capped Composite Decking Comparison for Gauteng

Gauteng UV radiation and summer electrical storms demand engineered substructures. We build pool decks, entertainment patios, and pergolas across Pretoria East, Centurion, and Johannesburg using H3/H4 CCA-treated framing and 304/316 stainless steel fasteners.

Decking Material	Expected Lifespan & Maintenance	Heat & UV Performance in Gauteng	Supply & Install Guide (per m2)
Yellow & Red Balau Hardwood	25 - 35+ years; annual UV decking oil application required unless left to silver naturally	High density Class 1 durable hardwood; rich warm reddish-brown grain	R2,400 - R3,400 per m2
Brazilian Garapa Hardwood	25 - 30+ years; annual oiling maintains golden honey tone or weathers to silver-grey	Reflects solar heat well around pools; fine, splinter-resistant grain	R2,500 - R3,500 per m2
Co-Extruded Capped Composite	25+ year manufacturer warranty; zero sanding, oiling, or sealing required	UV-stabilised polymer cap resists fading, pool chlorine & moisture	R2,800 - R4,200 per m2

Frequently Asked Questions About Decking Installations in Pretoria & Gauteng

Both perform exceptionally well when installed on a properly engineered H3/H4 CCA-treated substructure. Balau and Garapa offer authentic natural hardwood warmth and lower initial cost, requiring a yearly coat of UV oil, whereas co-extruded capped composite decking offers zero-maintenance convenience and splinter-free poolside performance.

Turnkey decking supply and installation in Pretoria and Gauteng typically ranges from R2,400 to R3,500 per square metre for Balau or Garapa hardwood decking, and R2,800 to R4,200 per square metre for premium capped composite decking, including substructure framing and stainless steel fasteners.

We space H3/H4 treated pine joists at strict 350mm to 450mm centres depending on board thickness, apply bitumen joist tape to shed water, maintain 5mm to 6mm expansion and drainage gaps between boards, and ensure cross-ventilation beneath the deck.

Technical Guides & Case Studies