Choosing between wood and composite decking is one of the most important decisions in a deck project. Both can produce a strong, attractive outdoor space when the design, framing and installation are handled correctly. The better choice depends on the property, budget priorities, maintenance expectations and preferred appearance.
Homeowners in London and surrounding Southwestern Ontario communities should also consider changing temperatures, snow, moisture, direct sun and seasonal use.
Appearance and design
Wood remains popular because of its natural grain and traditional appearance. Pressure-treated lumber is widely used, while cedar may be selected for its colour and character. Wood can be cut and detailed in many ways, and its finish can be changed with stains or coatings.
Composite decking is manufactured in a range of colours, board profiles and textures. Higher-quality products can create a consistent, finished appearance with less variation between boards. However, samples should be viewed in outdoor light because colour and texture can look different than they do online or indoors.
The surrounding home matters. A material that looks appropriate on one property may feel out of place on another. Siding, brick, landscaping, railings and architectural style should be considered together.
Maintenance expectations
Wood usually requires more ongoing attention. Cleaning, inspections and periodic finishing may be needed depending on the product and desired appearance. Boards can weather, split, stain or change colour over time.
Composite decking is often chosen to reduce staining and refinishing work. It is not maintenance-free. Dirt, organic buildup and spills still need to be cleaned, and care instructions vary by manufacturer.
Homeowners should decide how much maintenance they are realistically willing to complete. Selecting a lower-maintenance surface provides little benefit if other components, such as wood railings or trim, still require regular refinishing.
Weather and moisture
Outdoor materials in Southwestern Ontario experience wet seasons, summer heat, freeze-thaw cycles and snow accumulation.
Good performance depends on more than the deck board. Proper framing, ventilation, drainage, spacing and fasteners are essential. Water should not be trapped against the house or between components. The area beneath the deck must also be considered, especially where the yard has known drainage concerns.
Composite boards can expand and contract, so product-specific installation requirements matter. Wood also moves as moisture levels change. These behaviours must be accommodated during installation.
Heat and comfort
Dark surfaces can become hot in direct sunlight. This is relevant for decks with strong afternoon sun, limited shade or frequent barefoot use.
The material colour, board composition and exposure all affect surface temperature. Homeowners should compare physical samples and consider shade structures, pergolas or lighter colours where comfort is a concern.
Snow and winter use should also be discussed. The cleaning tools and de-icing products that are suitable for one surface may not be recommended for another.
Structure beneath the surface
Deck boards receive most of the attention, but the framing determines the structure's support and layout.
Some composite products require specific joist spacing or additional framing for picture-frame borders and angled patterns. Rail posts, stairs, privacy screens and future additions also affect the framing plan.
Replacing only the surface of an older deck may not be appropriate if the existing framing is damaged, undersized or poorly configured. A professional assessment should determine whether the structure can be reused safely and whether it meets the needs of the new material.
Initial cost and long-term value
Composite decking often has a higher initial material cost, while wood can have lower upfront material costs but greater maintenance demands over time.
A useful comparison includes expected upkeep, desired lifespan, warranty terms, appearance and the likelihood that the homeowner will maintain the surface properly. The cheapest purchase is not always the best value, and the most expensive product is not automatically the right choice.
Warranty details should be read carefully. Product warranties may cover specific manufacturing issues but not labour, improper installation, normal weathering or every type of damage.
Questions to ask before choosing
Homeowners should consider:
- How much direct sun reaches the deck?
- Is a natural or highly consistent appearance preferred?
- How much maintenance is realistic?
- Will the deck be used by children, pets or barefoot guests?
- Are stairs, borders or custom patterns planned?
- Is the existing framing being reused?
- What warranty applies to the product and installation?
- How will the material work with the home's exterior?
The cost difference between wood and composite
As a general reference, pressure-treated decking runs roughly $45 to $58 per square foot installed, while composite runs $65 to $95 per square foot. That upfront gap is real, composite typically costs 40 to 60 percent more to install. The comparison that actually matters is total cost over the life of the deck: PT needs recurring staining or sealing that composite does not, so the gap narrows over a 15 to 20 year horizon even though the installed price never does.
The right next step
Material selection should happen after the property and deck design are understood. Byre Construction can compare suitable options, explain the trade-offs and build a complete system that fits the home, not just install whichever board happens to be popular.
Next step
Planning a deck in London or Southwestern Ontario? Contact Byre Construction for a site review and a material recommendation based on your property, design and maintenance expectations.