Our Construction Services in Ottawa and Surrounding Areas

As a general contractor, Centennial Construction is the ideal partner for all your construction projects. We offer a vast array of services, including the following:

  • General construction 
  • Concrete work
  • Foundations and formwork 
  • Excavation 
  • On-site mixing and delivery of concrete, cement and mortar 
  • Equipment rental 
  • Sale and delivery of sand, gravel and earth


If you have any questions or if you would like to know more about our construction services in the Ottawa region, please contact us today.


If you have a square or rectangular surface, measure the length and width in feet, and the thickness in inches. Multiply the length by the width, and then by the thickness. Divide by 12, and then by 27. The result is the number of yards required. If you are using gravel, add 1/3 to take compacting into account.

To cover a square surface measuring 12 feet long by 12 feet wide with 4 inches of earth, you would need 1.78 yards of earth. 

12 ft. x 12 ft. x 4 in. / 12 / 27 = 1. 78 yards 

If you are covering a surface that has multiple sections, or if the surface is not square or rectangular, try to divide it into square or rectangular sections to facilitate your calculations. Calculate each section, and then add the sums to get your total required materials.


Construction AND excavation

Our team is equipped to carry out all your commercial and residential projects.


Concrete mixed on site

You only pay for the materials you receive, with no waste.

Truck rental

Do you need to rent a truck?

Get access to our fleet of trucks rental.

Centennial Construction Rockland Ltée
1211, rue Saint Jean C.P. 368
Rockland, ON K4K 1K5

Service Areas – Construction
Outaouais (Ontario)

Service Areas – Delivery
Outaouais (Québec et Ontario)

Business Hours

Monday to Friday,
7:00 AM to 5:00 PM

Delivery of concrete on Saturdays upon request.

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