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Gravel is the cheapest option, says Wyn-Harris. Gravel is easy to lay and permeable meaning that runoff into the storm water system isn't an issue. One the downside, loose gravel has a habit of moving. You can use a honeycomb base to reduce this problem, says Wyn-Harris.
Concrete is more popular than loose gravel and comes in many varieties. It can be made to look like aggregate, it can be textured, resemble brick and/or colour/accents. Concrete can be protected with a sealer, which ensures it remains looking clean. It has a lifetime of 25 to 50 years. Typically concrete would cost $80 to $140 per square metre depending on your needs.
Asphalt is another popular option and costs $60 to $100 per square metre according to the Builderscrack online cost estimator tool.
As a petroleum-based product it is quite flexible and not as prone to cracking as concrete. Asphalt is good where there are contours, he says.
The cons are that it's not ideal for steep driveways. It can also be sticky when it's very hot and you don't want to be walking it into the house.
Resin-bound gravel looks good and isn't loose, says Wyn-Harris. The resin locks the gravel into place and it's an aesthetically pleasing solution. It can be added over the top of old concrete, which is an advantage. It is permeable.
Likewise pavers, tiles and cobblestones are all permeable and can be lifted more easily if you need access to the services below the driveway. The cost ranges from $80 to $200 per square metre. Granite or basalt cobbles are at the higher end of the price range due to the amount of labour needed, says Wyn-Harris.