Should I build a ground-level or elevated deck on my property in Oromocto?

The right choice depends almost entirely on your home's floor height relative to grade and how you plan to access the deck, but for most Oromocto homes, a moderately elevated deck between 3 and 5 feet off the ground makes the most practical sense. Oromocto's housing stock is heavily influenced by the military base, with large numbers of PMQ-style bungalows, split-entries, and bi-levels built from the 1960s onward, and each house style points toward a different deck height.

A ground-level deck, meaning the surface sits less than 24 inches above grade, works beautifully when your back door is close to ground level. Some of the bungalows in Oromocto, particularly the ranch-style homes along Restigouche Road and in the older sections of town, have rear entries that step down to within a foot or two of the yard. For these homes, a ground-level platform deck creates a seamless transition between indoors and outdoors. You step out the door and you are essentially at yard level, which feels open and connected. There are meaningful practical advantages too. A deck under 24 inches above grade in New Brunswick does not require a building permit if it is freestanding, and it does not need railings. Eliminating the railing saves $1,500 to $4,000 on a typical deck and removes the visual barrier that can make a small deck feel enclosed.

The challenge with ground-level decks in Oromocto is moisture and ventilation. The deck surface sits close to the soil, and with our heavy snowfall of 250 to 300 centimeters annually, snow will pack against and underneath the deck through the winter months. Pressure-treated lumber can handle this, but the boards will stay damp longer than they would on an elevated deck, which accelerates wear and promotes moss and algae growth. You need to ensure at least 6 inches of clearance between the bottom of the joists and the ground, and the area beneath the deck should be graded so water flows away from the house. Laying landscape fabric under the deck and covering it with gravel helps suppress weed growth and improves drainage.

An elevated deck makes more sense for the split-entry and bi-level homes that are common throughout the Oromocto subdivisions. When your back door opens from the upper living level, you could be 6 to 10 feet above the yard. Building at that height requires posts set on footings that extend below the frost line, which is 1.2 meters in the Oromocto area. You will need a building permit from the Village of Oromocto for any deck that is attached to the house or more than 24 inches above grade, and the permit requires a framing plan showing your joist sizes, post spacing, and footing details. Railings are mandatory at this height, built to the 36-inch minimum height with 4-inch maximum baluster spacing.

Cost is a real consideration. A ground-level 12x16 pressure-treated deck on deck blocks might run $3,500 to $5,500 because you are skipping deep footings and railings. The same 12x16 footprint elevated 5 feet off the ground with proper footings, posts, beams, railings, and a staircase jumps to $6,500 to $10,000 in pressure-treated lumber. In composite, that elevated deck runs $10,500 to $16,500.

The elevated deck does give you something valuable that the ground-level version cannot: usable space underneath. At 5 feet of clearance, you have room for storing bikes, lawnmowers, and patio furniture during the winter. Some Oromocto homeowners enclose the space below the deck with lattice panels to keep it tidy and keep animals out while still allowing air circulation.

Oromocto sits along the Saint John River and parts of town are in identified flood-risk zones. If your property is anywhere near the river or Gage Creek, check with the village office about flood plain restrictions before committing to a ground-level build. An elevated deck on a flood-prone lot is not just preferable, it may be required.

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