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Cost to Build A Deck Calculator Ontario

Reviewed by Calculator Editorial Team

Building a deck is a popular home improvement project in Ontario, but the cost can vary significantly depending on several factors. Our deck cost calculator provides an accurate estimate based on your specific requirements. This guide explains how to use the calculator, what factors influence the cost, and how to interpret the results.

Introduction

The cost to build a deck in Ontario typically ranges from $10,000 to $30,000, depending on the size, materials, and complexity of the project. Professional deck builders charge $25 to $50 per square foot for labor, while materials can cost $10 to $30 per square foot.

Our calculator takes into account the deck size, material type, labor costs, and additional expenses to provide a comprehensive estimate. Whether you're planning a small backyard deck or a large front porch, this tool will help you budget effectively.

Factors Affecting Deck Cost

Several factors influence the total cost of building a deck in Ontario:

  • Deck size: Larger decks cost more due to increased material and labor requirements.
  • Material type: Composite, wood, and pressure-treated wood have different price points.
  • Labor costs: Professional installation typically costs $25-$50 per square foot.
  • Permits and fees: Ontario may require permits, which can add $500-$2,000 to the total cost.
  • Additional features: Railings, stairs, and built-in seating increase the cost.

Deck Material Costs

Material costs vary depending on the type of decking you choose:

Material Cost per Square Foot
Composite $15-$25
Pressure-Treated Wood $10-$20
Cedar $20-$30
Redwood $25-$40

Composite decks are more expensive upfront but require less maintenance than wood decks.

Labor Costs

Labor costs typically range from $25 to $50 per square foot, depending on the complexity of the project and the builder's experience. Factors that can increase labor costs include:

  • Complex deck designs
  • Uneven or sloped terrain
  • Additional features like railings or stairs
  • Permit requirements and inspections

For projects under $5,000, Ontario may not require a permit, but it's always best to check local regulations.

Permit and Fees

In Ontario, deck construction may require a building permit, especially for decks over 30 square feet or attached to a dwelling. Permit fees typically range from $500 to $2,000, depending on the municipality.

Additional fees may include:

  • Inspection fees
  • Waste disposal fees
  • Sewer and water connection fees (if applicable)

Worked Example

Let's calculate the cost for a 200 square foot composite deck with professional installation:

Total Cost = (Deck Area × Material Cost) + (Deck Area × Labor Cost) + Permit Fees

Total Cost = (200 × $20) + (200 × $35) + $1,000 = $4,000 + $7,000 + $1,000 = $12,000

This example shows a total cost of $12,000 for a 200 square foot composite deck with professional installation and permit fees.

Frequently Asked Questions

How much does it cost to build a deck in Ontario?
The cost typically ranges from $10,000 to $30,000, depending on size, materials, and labor costs.
Do I need a permit to build a deck in Ontario?
Yes, for decks over 30 square feet or attached to a dwelling, a building permit is usually required.
What are the most common deck materials?
Composite, pressure-treated wood, cedar, and redwood are popular choices.
How much does labor cost for deck installation?
Labor typically costs $25-$50 per square foot, depending on complexity and builder experience.