Columns placed inside the wall on 20' to 30'spacing extend from 18 to 36 from the wall into the interior of the building. With the installation of backdrops and player access alleys the effective space for a tennis court is only 114' +/-, some 6' less than most players are accustomed to. The resulting undersized courts have lead to numerous law suits with players claiming injuries for running into columns or walls.
First, letâs look at the cost of actually building a pool. Obviously, the fancier the pool, the more expensive it will be. On average, an in-ground pool can cost anything from $12,000 to $50,000. An above-ground pool may be a bit cheaper.
  the average price of an inground pool is between 25,000 and 40,000 the prices are very high but worth it     Many companies advertise that you can have a pool bui â¦ lt starting at $30,000. This will usually be what we call in Las Vegas a play pool.e are in the NY area. The average price of a typical built  in pool is around $30,000. A really cheap one might be built for  $20,000 in some parts of the country, but the pool will lack many  of the features most people expect in a new pool and very few pool  builders will want to build one.