How Much Does a Composite Deck Cost in Durham Region?

Dan - Icon Decks
Mar 25
4 min read

Updated: 7 days ago

Composite and PVC decking have become increasingly popular across Durham Region, York Region, Kawartha Lakes, and the East GTA due to their modern appearance, low maintenance requirements, and long-term durability compared to traditional wood decks.

However, the cost of a professionally built deck can vary significantly depending on factors such as:

deck size
elevation and structural requirements
stairs and landings
railing systems
decking material selection
custom outdoor living features

Below is a general pricing guide based on the types of custom deck projects commonly built throughout our area.

Average Composite & PVC Deck Cost in Durham Region

For most professionally built composite and PVC outdoor living projects in Durham Region and the surrounding GTA area, homeowners typically invest approximately:

Deck Type	Typical Investment Range
Pressure-Treated Decks	Approximately $35–$55 per sq ft
Composite Decks	Approximately $60–$95 per sq ft
PVC Decks	Approximately $75–$120+ per sq ft

These ranges typically include:

pressure-treated structural framing
composite or PVC decking materials
aluminum railing systems
standard stair systems (if required)
fascia/skirting around exposed sides
professional installation and labour

Every project is unique, but these ranges reflect the types of professionally built outdoor living spaces commonly constructed throughout Durham Region, York Region, and the East GTA.

Example Composite Deck Costs

Below are some general examples based on common project sizes.

Project Size	Typical Investment Range
Small Composite Decks (150–250 sq ft)	$15,000 – $25,000+
Medium Composite Decks (250–400 sq ft)	$25,000 – $45,000+
Large or Elevated Composite Decks (400+ sq ft)	$45,000 – $100,000+

Projects involving multiple stair runs, elevated structures, glass railing, pergolas, privacy walls, waterproofing systems, lighting, or custom design features may exceed these ranges.

What Affects the Cost of a Composite Deck?

Several factors influence the overall investment of a custom deck project.

Deck Size

Larger decks naturally require additional materials, framing, labour, and railing systems. However, some fixed setup costs are spread over a larger area, which can slightly reduce the overall cost per square foot on larger projects.

Decking Material Selection

Composite and PVC decking materials vary significantly depending on the brand, finish level, colour variation, and performance characteristics.

Common decking materials used throughout Ontario include:

composite decking (such as TruNorth, Trex, or TimberTech)
premium PVC decking systems
pressure-treated wood decking

PVC decking generally carries the highest upfront investment, but offers exceptional durability, low maintenance, and excellent resistance to moisture, staining, and expansion.

Railing Systems

Railing selection can have a major impact on overall project pricing.

Common railing options include:

pressure-treated wood railing
black aluminum railing systems
framed glass railing
frameless glass railing systems

Most modern composite decks utilize black aluminum railing systems due to their clean appearance, durability, and minimal maintenance requirements.

Deck Stairs

Stairs often add significant labour and material costs to a deck project due to additional framing, railing components, fascia finishing, and installation complexity.

A simple staircase may add several thousand dollars to a project, while larger feature staircases, wrap-around stairs, multi-level landings, or integrated lighting systems can increase the investment considerably.

Deck Height & Structural Requirements

Deck elevation also plays a major role in overall project cost.

Ground-level decks are generally less expensive because they require fewer structural components and shorter stair systems.

Elevated decks may require:

additional beams and framing
helical piers or deeper footings
longer stair systems
additional railing
engineering and permit requirements

These structural considerations can substantially increase the project investment.

Composite vs Pressure-Treated Deck Cost

Many homeowners compare composite decking against traditional pressure-treated wood decks when planning their outdoor space.

Below are typical installed pricing ranges for professionally built decks in Durham Region and the surrounding GTA:

Deck Type	Typical Installed Cost
Pressure-Treated Wood Deck	Approximately $35–$55 per sq ft
Composite Deck	Approximately $60–$95 per sq ft
PVC Deck	Approximately $75–$120+ per sq ft

Pressure-treated decks generally offer a lower upfront investment, but typically require ongoing staining, sealing, and maintenance over time.

Composite and PVC decking systems are designed to provide a long-lasting, low-maintenance outdoor living space with minimal upkeep.

Example Composite Deck Project

A typical professionally built composite deck project may include:

approximately 16’ × 20’ deck structure
composite decking boards
aluminum railing system
one staircase
fascia/skirting around exposed sides
pressure-treated structural framing
demolition and disposal of existing structure (if applicable)

Typical investment range:

Approximately $25,000 – $40,000+

Additional custom features such as pergolas, privacy screens, deck lighting, waterproofing systems, cedar ceilings, or glass railing systems may increase the total project investment further.

Why Deck Pricing Can Vary Between Builders

If you’ve started requesting quotes for a deck project, you may notice pricing can vary significantly between contractors.

Several factors contribute to this difference.

Materials & Product Quality

Not all composite or PVC decking products are the same.

Some builders install entry-level materials, while others utilize premium decking systems with improved durability, appearance, fade resistance, and warranty coverage.

Structural framing systems and hardware quality can also vary considerably between builders.