The main cost drivers
Size is the most obvious factor. A large double driveway gate in mild steel requires more material and substantially more fabrication time than a single pedestrian gate. Beyond size, material choice has a significant effect: stainless steel gates cost considerably more than equivalent mild steel designs due to both material cost and the additional skill required to fabricate and finish them cleanly.
Design complexity matters too. A gate with a simple grid or flat-bar pattern is straightforward to fabricate. One with integrated timber cladding, custom house numbers, a coordinating pedestrian gate, automation hardware and intercom provisions is a different scope of work — and should be quoted as such.
What separates a R20,000 gate from an R80,000 gate
At the lower end, you are typically looking at a standard-size single gate in mild steel with a basic design, standard hinges and a straightforward powder-coat finish. At the higher end, the gate is larger, more complex in design, fabricated in stainless steel or with premium timber details, automated, and finished to an architectural standard that holds up under close inspection.
Installation costs vary by site. A flat entrance with a standard post is simple. A sloping driveway, a gate that needs to be suspended between existing masonry pillars, or a setting that requires significant groundwork to accommodate the automation mechanism can each add meaningfully to the total.
Why the cheapest quote is rarely the best value
A gate is a long-lived investment. One that is correctly specified, well-fabricated and properly installed will perform for twenty years or more with minimal intervention. One that is underspecified for its exposure, rushed in fabrication, or poorly hung will begin to show problems within a few seasons — and remedial work on an installed gate is disproportionately expensive.
The most useful question to ask a fabricator is not what the cheapest option is, but what they would specify for a gate in your specific position and why. The answer tells you as much about the quality of the supplier as it does about the gate itself.
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