What is the difference between a fine sand and coarse sand stucco texture in Ottawa?

Fine sand and coarse sand stucco textures are two of the most popular finish coat choices in Ottawa, and the difference goes well beyond just how they look — texture choice affects durability, maintenance, water behaviour, and long-term performance in our climate.

Fine Sand vs. Coarse Sand Stucco Texture

Fine sand texture uses smaller aggregate particles, typically in the 0.5 to 1.5 millimetre range, to create a relatively smooth, even surface with subtle variation. It has a refined, almost plaster-like appearance that reads as elegant and contemporary up close. Many homeowners in neighbourhoods like Westboro, the Glebe, and New Edinburgh gravitate toward fine sand finishes because it complements both heritage architecture and modern infill homes. Fine sand texture is also easier to clean — dirt and biological growth like algae have fewer surface irregularities to cling to, which matters in Ottawa's wet springs and humid summers.

Coarse sand texture uses aggregate in the 1.5 to 3.5 millimetre range, creating a rougher, more pronounced surface with deeper shadow lines and visible grain. It has a more traditional, robust appearance that has been common on Ottawa residential construction for decades. Coarse texture is slightly more forgiving to apply because minor trowel imperfections are hidden by the aggregate pattern. It is also a popular choice for lower walls and foundation areas where a utilitarian look is acceptable.

From a durability standpoint in Ottawa's freeze-thaw environment, coarse sand texture has a slight edge because the deeper surface profile allows water to drain away from the wall face more efficiently rather than sheeting across the surface. Fine sand finishes, particularly when they approach a smooth finish, can hold surface water slightly longer, which increases the risk of freeze-thaw micro-damage over time. That said, both textures perform well when the underlying stucco system is properly installed with the right weather-resistive barrier, correct coat thickness, and appropriate expansion joints.

Maintenance differences are worth considering over a 10 to 20 year horizon. Coarse sand texture tends to accumulate more dirt, spider webs, and organic material in its deeper surface pockets, requiring more frequent cleaning — typically a gentle low-pressure wash every two to three years in Ottawa. Fine sand texture stays cleaner longer but shows efflorescence (white mineral deposits) and hairline cracking more visibly because there is less surface texture to camouflage them.

When it comes to painting, both textures accept elastomeric stucco paint well, but coarse sand surfaces require more paint per square foot to achieve full coverage — typically 15 to 20 percent more product. If you are planning to paint your stucco eventually, that is a minor cost factor worth keeping in mind. Elastomeric paint on either texture runs $3,000 to $7,000 for a full Ottawa home and should be reapplied every 7 to 10 years.

Pricing between the two textures is generally comparable — the finish coat labour and material cost difference is minimal, usually within $0.50 to $1.00 per square foot. The bigger cost drivers are always substrate condition, scaffold requirements, and total wall area rather than aggregate size.

If you are deciding between the two, think about your home's architectural style, how much maintenance you want to do, and whether you prefer a more contemporary or traditional appearance. Both are excellent choices for Ottawa's climate when properly applied during the May through October stucco season.

If you would like to see both textures in person before committing, ask any contractor you speak with for sample boards — most experienced applicators will have them. You can find stucco contractors serving the Ottawa area through the Ottawa Construction Network directory at justynrookcontracting.com.