What is the price difference between a ground-level and raised deck in Dieppe NB?

A ground-level deck in Dieppe typically costs $25 to $45 per square foot, while a raised deck runs $45 to $85 per square foot or more, meaning a raised deck generally costs 60 to 100 percent more than a comparable ground-level build. The difference comes down to structural requirements, materials, and labour complexity.

For a standard 12x16-foot deck (192 square feet), a ground-level build in Dieppe would run approximately $4,800 to $8,600 all in. This type of deck sits close to the ground, often on concrete deck blocks or shallow footings, and uses a straightforward joist-and-decking structure without the need for tall posts, extensive bracing, or railings. Because a freestanding ground-level deck under 600 millimetres (24 inches) above grade is typically exempt from building permit requirements in Dieppe, you also save on the $100 to $300 permit fee and the engineering drawings that a permitted deck demands. However, you should always confirm exemption with Dieppe's building department, as municipal interpretations can vary.

That same 192-square-foot deck built as a raised structure, say 4 to 8 feet off the ground to match a main-floor door height, jumps to roughly $8,600 to $16,300. The cost increase comes from several factors. First, every footing must extend below the frost line at approximately 1.5 metres depth, which in the Greater Moncton area including Dieppe means significant excavation work at $150 to $350 per footing. A raised deck also requires engineered beam-and-post framing with proper lateral bracing to handle both the live load and New Brunswick's snow load requirements of 2.0 to 3.5 kPa depending on the specific location. Posts, beams, joist hangers, and through-bolts for a ledger board attachment all add material costs that a ground-level deck avoids entirely.

Railings are another major cost driver. The National Building Code requires guards on any deck surface more than 600 millimetres above adjacent grade, with a minimum height of 1,070 millimetres (42 inches) and balusters spaced no more than 100 millimetres apart. Pressure-treated wood railings add $30 to $50 per linear foot, while aluminum railings run $60 to $120 per linear foot installed. On a raised deck with 50 to 60 linear feet of railing, that is an additional $1,500 to $7,200 that a ground-level deck simply does not require.

Stairs are yet another expense unique to raised decks. A set of stairs with proper stringers, treads, and a handrail costs $800 to $2,500 depending on height and material. Attached raised decks in Dieppe also require a building permit, which means submitting a site plan, deck plan, cross-section, and railing details, then waiting 2 to 4 weeks for approval before breaking ground.

Composite decking narrows the gap somewhat because the decking material cost is the same regardless of height, but the structural framing difference remains significant. If your lot and home layout allow for a ground-level deck, it is by far the more budget-friendly option in Dieppe.

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