How Much Would It Cost to Build a 25-Yard Pool?

Concrete in-ground swimming pools come in an endless variety of sizes and shapes. In part, an in-ground swimming pool's cost is based on its size, so larger, longer ones cost more than smaller, shorter ones. For example, as of July 2011, concrete 20 x 40-foot in-ground swimming pools cost about $39,000 installed. If you want a much larger pool, like a 25-yard long version, use square feet to estimate its acquisition cost.

Underwater Shot of a Young Man Swimming in a Pool
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A standard size 25-yard long swimming pool typically costs about $50 per square foot to build.

Pool Costs

Young Woman Swimming in a Pool
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Standard-size in-ground swimming pool costs vary from builder to builder and by region in the country.

Standard-size in-ground swimming pool costs vary from builder to builder and by region in the country. Outside of recreation centers and fitness clubs and the like, rarely are large 25-yard (75-foot) long swimming pools put into backyards. However, if you're thinking of having something like a 25-yard long swimming pool built, figure on $40 to $60 per square foot, complete. A 25 x 5-yard (15 feet) in-ground lap swimming pool, at $50 per square foot, would cost $56,250.

Reducing Costs

Young Man Sitting at the Edge of a Swimming Pool
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Often the quoted price of an in-ground swimming pool will double by the time all options, such as landscaping and decking, are added in.

Often the quoted price of an in-ground swimming pool will double by the time all options, such as landscaping and decking, are added in. If a 25-yard long in-ground swimming pool is what you'd really like, you can reduce costs by building some parts of it yourself. You can also elect to build a 25-yard long swimming pool entirely on your own. Unless you have heavy equipment needed to excavate for an in-ground swimming pool, plan on contracting that activity out.

Excavation

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Really large in-ground swimming pools found at hotels and health clubs, though, are only made of concrete.

Many activities go into building any in-ground swimming pool. Really large in-ground swimming pools found at hotels and health clubs, though, are only made of concrete. All in-ground swimming pool construction begins with site preparation and excavation. Even standard-size backyard in-ground swimming pools cost anywhere from $900 to $2,500 for excavation. Excavation companies charge $50 to $200 per yard to create the hole for a swimming pool. At $200 per yard, the cost to excavate a 25-yard pool would be $5,000.

Other Costs

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Concrete swimming pools are built on forms over which concrete is poured and shaped.

Concrete swimming pools are built on forms over which concrete is poured and shaped. In addition, concrete in-ground swimming pools feature a plaster topcoat. Concrete for a swimming pool is about $70 per cubic yard. If you need a 3-inch concrete base for your 25-yard long by 5-yard wide by 4-foot deep swimming pool, expect to pay about $26,000 dollars for concrete. Plaster topcoats for concrete swimming pools are 1/2-inch thick and are priced separately.

Do-It-Yourself Alternatives

Cinder or concrete block in-ground swimming pools with custom-made vinyl liners make for excellent do-it-yourself (DIY) projects. An 18 x 40-foot DIY in-ground block swimming pool costs about $11,000. The Homebuilt Pools Company website says average costs for different size DIY block pools vary greatly only if they're much smaller or larger. Twenty-five-yard long DIY block swimming pools are much larger than standard size block pools, so expect to pay more than their average $11,000 price tag to build one.