Stone Selection
Choosing Natural Stone for Your Driveway
Granite, limestone, bluestone, and fieldstone each behave differently under load and frost. A breakdown of the main options for Canadian driveways.
Practical guidance on choosing the right stone, preparing the base, laying flagstone and cobble, and keeping surfaces intact through freeze-thaw cycles.
Covering stone selection, installation methods, and seasonal upkeep for driveways and garden paths in Canada.
Stone Selection
Granite, limestone, bluestone, and fieldstone each behave differently under load and frost. A breakdown of the main options for Canadian driveways.
Installation
Step-by-step process for setting flagstone on a compacted granular base, including joint spacing, levelling, and filling options.
Maintenance
Frost heave, de-icing chemicals, and spring re-levelling are recurring concerns in Canada. What to check each season and how to address common issues.
Canada's most widely used paving stones — granite, limestone, sandstone, and slate — vary in hardness, water absorption, and frost resistance. Granite and some quartzites top the durability scale; softer sandstones need more maintenance in wet climates.
Most of Canada experiences multiple freeze-thaw cycles each winter. Water absorbed into subgrade soils expands on freezing, pushing pavers upward — a process called frost heave. Proper base depth (typically 200–300 mm of compacted granular material) is the primary defence.
The depth of compacted base required varies by climate zone. Colder regions — northern Ontario, the Prairies, Quebec — generally need deeper bases than coastal British Columbia. Local building authorities or a licensed landscape contractor can provide zone-specific guidance.
The subbase determines how long a stone surface holds its level. These are general reference figures — site conditions vary.
Remove topsoil and organic material to reach stable subgrade. Depth depends on stone thickness plus base layers required for your climate zone.
Crush run or ¾-inch clear stone, compacted in lifts of 100–150 mm. Each lift is compacted before adding the next. Adequate drainage is essential.
A 25–50 mm layer of coarse sand or stone dust allows fine-tuning of slope and level before stone placement. Not compacted — screeded flat.