What size of above-ground pool is most popular with Ottawa homeowners? | Pool IQ

The most popular above-ground pool size among Ottawa homeowners is the 24-foot round, followed closely by the 18-foot round for smaller yards and the 15×30 oval for families who want a swimming lane. These three sizes account for roughly 70% of all above-ground pool sales in the Ottawa market, with the 24-foot round dominating at nearly 40% of installations on its own.

The 24-foot round hits the sweet spot for several Ottawa-specific reasons. Most suburban lots in neighbourhoods like Barrhaven, Kanata, Orleans, and Stittsville run between 40 and 60 feet wide with backyards averaging 30 to 50 feet deep. A 24-foot round pool with a 3-foot deck surround and the required setbacks from property lines and structures fits comfortably on these lots without consuming the entire yard. You still have room for a patio, a garden, or space for kids to play off the deck. The pool holds approximately 52,000 litres of water, which is enough for a family of four to five to swim, float, and play without feeling cramped.

Pricing for a 24-foot round pool in Ottawa ranges from $4,500 to $8,500 for the pool kit alone (frame, liner, pump, filter, skimmer, and return), or $8,000 to $14,000 fully installed including ground preparation, sand base, assembly, basic plumbing, and startup chemicals. That installed price is roughly 10-12% below what the same pool costs in the GTA, where higher labour rates and longer wait times inflate quotes. Adding a deck pushes the total to the ranges I'll discuss below, but the pool-only price point is what makes the 24-foot round so accessible.

The 18-foot round is the second most popular choice, particularly for townhome backyards, infill lots in older Ottawa neighbourhoods like Alta Vista, Westboro, and Centretown West, and cottages in the Gatineau Hills or along the Rideau system. It holds roughly 31,000 litres — enough for three or four people at once — and fits on lots as narrow as 30 feet with proper setbacks. Expect to pay $3,500 to $6,000 for the kit or $6,000 to $10,000 installed. The smaller footprint also means lower annual operating costs: less water to heat, fewer chemicals, and a smaller pump drawing less electricity. For a couple or a small family who mainly wants to cool off during Ottawa's increasingly hot summers (we've seen stretches above 35°C in recent years), the 18-foot round delivers excellent value.

Why ovals are gaining ground in Ottawa

The 15×30 oval is the premium choice and the fastest-growing segment in the Ottawa above-ground market. Ovals provide a proper swimming lane — you can do laps in a 15×30, which you really can't in any round pool — and they look more like an inground pool, especially when partially recessed or surrounded by a well-designed deck. A 15×30 oval runs $7,000 to $14,000 for the kit and $14,000 to $22,000 installed, with the higher cost driven by the buttress or buttress-free support system that ovals require along their straight walls.

Oval pools need more ground preparation than rounds. The buttress systems (either external supports that extend 3-4 feet out from the pool wall or internal strap systems that run under the pool floor) require precise excavation and compaction. In Ottawa's clay-heavy soil — particularly in areas like Riverside South, Findlay Creek, and much of the west end — this prep work is critical. Clay soil shifts dramatically through our freeze-thaw cycles, and inadequate base preparation under an oval pool can lead to wall buckling or liner failure within just a few seasons.

Pool depth is another consideration that affects Ottawa buyers' choices. Standard above-ground pools come in 48-inch (4-foot) and 52-inch (4.33-foot) wall heights. The 52-inch wall is overwhelmingly preferred in Ottawa — it provides a water depth of approximately 46-48 inches, which is deep enough for adults to submerge to chest level and for kids to swim properly. The 4-inch difference between the two wall heights seems minor, but it meaningfully changes the swimming experience. The price difference between 48-inch and 52-inch walls is only $200 to $500, making the taller wall an obvious upgrade.

Salt water systems have become extremely popular in Ottawa above-ground pools, with roughly 60% of new installations now including a salt chlorine generator. A salt system adds $800 to $2,000 depending on the pool volume and generator brand (Hayward, Pentair, and CircuPool are the most common in the Ottawa market). The appeal is straightforward: salt systems produce chlorine continuously and gently, eliminating the harsh chemical swings that traditional chlorine dosing creates. In Ottawa's short swimming season — realistically mid-June through early September for most families — every comfortable swimming day matters, and salt water feels noticeably softer on skin and eyes.

When choosing your pool size, consider these Ottawa-specific factors: your lot dimensions and City of Ottawa setback requirements (typically 1.5 metres from property lines and structures), winter cover logistics (a 24-foot round cover is manageable for two people, but a 15×30 oval cover is heavy and awkward), snow load on the cover and frame during our 200+ centimetre snow seasons, and whether you want to add a heater to extend the season. A larger pool volume means higher heating costs — extending a 24-foot round pool's season by four weeks with a propane heater costs roughly $600 to $900 in fuel, while the same extension for a 15×30 oval runs $900 to $1,400.

For most Ottawa families on a standard suburban lot, the 24-foot round with a 52-inch wall, salt water system, and a quality winter cover represents the best balance of swimming space, cost, and seasonal practicality. Budget $10,000 to $16,000 for the pool fully installed with a salt system, or $28,000 to $38,000 with a full deck package.