Sizing a triple or four-bay carport
Count the widest thing you park, not just the cars. A 9m × 6m triple takes three sedans, or two cars and a single-axle trailer; a 12m × 6m four-bay takes four vehicles, or a boat-and-trailer plus two cars — common on a coast where a ski-boat is a household item. On a larger stand the span often needs a taller 2.7–3.0 m beam for a bakkie with a canopy, and a mid-post layout the boat can reverse between.
| Structure | Size | Typical use | Price band |
|---|---|---|---|
| Triple | 9m × 6m | 3 cars, or 2 + trailer | R19,000 – R38,000 |
| Four-bay | 12m × 6m | 4 vehicles / boat + cars | R27,000 – R52,000 |
Wide spans on the coast
A wide roof catches more onshore wind, sun and rain, so the engineering matters more on a triple than on a single. KB Carports uses heavier hot-dip galvanised steel sections and full-length IBR runs on these spans, pitched to shed Durban's heavy summer downpours fast, and anchored against wind uplift. The corrosion-and-wind reasoning is in coastal corrosion and wind.
Where triples get built
Most triple and four-bay work is on the larger stands — the Upper Highway smallholdings around Hillcrest, the South Coast plots and sea-facing homes with room. Price the exact span on the carport prices in Durban page, or start with a double carport if the third bay can wait.
Common questions
How much is a triple carport in Durban?
A triple carport in Durban costs R19,000–R38,000 supplied and installed at 9m × 6m in hot-dip galvanised steel with IBR roofing. A four-bay (12m × 6m) runs R27,000–R52,000.
What size carport covers a boat and trailer?
A four-bay 12m × 6m carport, or a triple with an extended bay, covers a ski-boat-and-trailer alongside two cars. Specify a 2.7–3.0 m beam height so a boat on a trailer or a bakkie with a canopy clears the roof.
Can you build a large carport on an Upper Highway smallholding?
Yes. The Upper Highway smallholdings around Hillcrest and Assagay, and the South Coast plots, are where most triple and four-bay carports go, using heavier galvanised steel sections and taller beams for trailers, boats and bakkies.