What is the price per square foot for a 400 square foot deck in Dieppe NB?

For a 400 square foot deck in Dieppe, you're looking at $25-40 per square foot for pressure-treated lumber, $45-75 for composite, or $55-85 for premium PVC decking. This puts your total project cost between $10,000-$34,000 depending on materials and complexity.

Pressure-treated lumber remains the most popular choice in the Moncton/Dieppe area at $25-40 per square foot installed. For your 400 sq ft deck, expect $10,000-$16,000 total. This includes proper footings extending 1.2 metres below grade (Dieppe's frost depth), structural framing, decking boards, and basic railings. The wide price range reflects factors like deck height, railing style, and site accessibility.

Composite decking (Trex, TimberTech, Fiberon) runs $45-75 per square foot, putting your 400 sq ft project at $18,000-$30,000. While the upfront cost is significantly higher, composite eliminates the annual staining and sealing that pressure-treated requires in New Brunswick's harsh freeze-thaw climate. Many Dieppe homeowners choose composite specifically to avoid the maintenance headaches of wood decking.

Premium PVC options like AZEK cost $55-85 per square foot ($22,000-$34,000 for 400 sq ft). This is the most expensive option but offers complete moisture resistance—ideal for Dieppe's Maritime humidity and proximity to the Petitcodiac River.

Additional costs to consider include permits ($100-200 through the City of Dieppe), upgraded railings (glass or cable systems add $50-150 per linear foot), and stairs if your deck is elevated. Multi-level designs or complex shapes can increase costs by 20-30%.

Timing matters significantly in the Dieppe area. Book your contractor by March or April for summer construction, as the prime building season (June through August) fills up quickly. Concrete footings need consistent temperatures above 10°C, making late May through September the ideal construction window.

For the most accurate pricing on your specific project, factors like soil conditions, deck height, access to your backyard, and your choice of railing style will all impact the final cost. New Brunswick Decks can match you with local Dieppe contractors who can provide detailed estimates based on your exact requirements and site conditions.