What is the average cost per square foot for a new deck in Fredericton NB?

The average cost per square foot for a new deck in Fredericton ranges from $25 to $75 installed, with pressure-treated lumber at $25 to $40, cedar at $35 to $55, composite at $45 to $75, and PVC decking at $55 to $85 per square foot. These figures include materials, labour, footings, and basic railings for a standard single-level deck. The wide range reflects both the material you choose and the specific conditions of your building site.

Pressure-treated lumber remains the workhorse of Fredericton's deck building market, and at $25 to $40 per square foot it offers the lowest entry point for a quality deck. The lower end of that range applies to straightforward ground-level decks on flat lots with easy access, while the upper end covers elevated decks that require taller posts, more complex framing, and additional footings. Pressure-treated lumber is readily available from building supply dealers throughout the Fredericton area, and every deck contractor in the region has extensive experience working with it. The trade-off is maintenance: you will need to stain or seal a PT deck every two to three years to keep it looking good and to prevent the greying, cracking, and splintering that untreated exposure to Fredericton's freeze-thaw cycles causes.

Cedar decking at $35 to $55 per square foot gives you a more refined appearance with naturally warm tones and a pleasant scent when freshly installed. Western red cedar is the standard species used for decking in Atlantic Canada, and while it has natural rot-resistant properties, it is not immune to Fredericton's weather. Staining is still recommended every two to three years, and cedar boards are softer than pressure-treated, making them more susceptible to denting and surface wear in high-traffic areas. Cedar availability can fluctuate in the Fredericton market, and prices tend to be higher than what you would find in British Columbia where the wood is harvested.

Composite decking at $45 to $75 per square foot has become increasingly popular in Fredericton over the past several years. The appeal is straightforward: no staining, no sealing, no sanding, and a consistent appearance year after year. Modern capped composite boards resist fading, staining, and mould growth far better than the early composite products that gave the material category a mixed reputation. The substructure beneath composite boards is still pressure-treated lumber, so you are not eliminating wood from the project entirely, but the visible surfaces that you interact with daily are essentially maintenance-free. The higher per-square-foot cost is offset over time by the elimination of annual staining costs, which run $3 to $6 per square foot each time you have the work done professionally.

PVC decking sits at the top of the price range at $55 to $85 per square foot installed. PVC boards contain no wood fibre at all, making them completely impervious to moisture, rot, and insect damage. They perform exceptionally well in Fredericton's wet spring conditions and resist the mould growth that can affect both wood and some composite products. The drawback is that PVC can feel less natural underfoot and expands and contracts more with temperature changes, requiring careful installation with proper gapping.

Labour costs in Fredericton run $25 to $45 per hour for experienced deck builders, and labour typically represents 40 to 60 percent of your total project cost. This means that on a $50-per-square-foot composite deck, roughly $20 to $30 of that cost is labour and the remainder is materials, footings, hardware, and railings. Site conditions that increase labour costs include sloped lots requiring retaining work, limited access that prevents equipment from reaching the build site, and elevated decks requiring scaffolding or extra safety measures. Always get itemized quotes so you can see exactly where your money is going.

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