What is the difference between a deck and a patio in terms of cost and value in NB?

A deck in New Brunswick typically costs $25 to $75 per square foot and is an elevated wood or composite structure, while a patio runs $15 to $35 per square foot and sits at ground level using concrete, pavers, or stone. Decks generally deliver stronger resale value, but the right choice depends on your lot, your home's layout, and how you plan to use the space.

The cost difference starts with the structural requirements. A deck requires footings that extend below the frost line, which in most of New Brunswick is four to five feet deep. Those footings support posts, beams, and joists that create the elevated platform. The lumber, hardware, and labour involved in building this structure account for a significant portion of the cost. A ground-level patio, by contrast, sits on a compacted gravel base or directly on prepared soil. There are no posts, no joists, and no railing requirements. The materials are typically concrete, interlocking pavers, or natural flagstone, and the installation process is fundamentally different from framing a deck.

Within the deck price range, the spread from $25 to $75 per square foot reflects material choices and complexity. A simple rectangular pressure-treated deck with basic railings will land near the lower end. A multi-level composite deck with aluminum railings, built-in lighting, and custom stairs will push toward the upper end. Similarly, patio costs vary based on material. A basic concrete slab is the cheapest option, while natural stone laid in a pattern with a polymeric sand base costs considerably more.

Resale Value Comparison

Decks consistently outperform patios in terms of return on investment in the New Brunswick real estate market. A well-built deck typically recovers 65 to 80 percent of its cost at resale, making it one of the better-performing exterior improvements. Patios also add value, but they are generally perceived as less of a feature by buyers because they do not extend usable living space in the same way an elevated deck does. A deck attached to a main-floor kitchen or living room effectively creates an outdoor room, which is a strong selling point in the Moncton, Fredericton, and Saint John markets where buyers increasingly prioritize outdoor living.

That said, patios have clear advantages in certain situations. If your yard is flat and your main-floor level is close to grade, an elevated deck may look and feel out of proportion. A patio is also the better choice for fire pit areas, outdoor dining spaces that benefit from a solid surface, or heavily shaded areas where wood decking would stay damp and develop mould. Patios require virtually no ongoing maintenance beyond occasional pressure washing, while wood decks need staining or sealing every two to three years.

Many New Brunswick homeowners find that the best approach is a combination. A deck off the back of the house provides the elevated outdoor living area connected to indoor spaces, while a patio at grade level serves as a landing for stairs, a fire pit zone, or a garden seating area. This combination maximizes both function and curb appeal without over-investing in either one. When budgeting, consider the total cost of ownership over 10 to 15 years, including maintenance, not just the upfront installation price.

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