A good rule of thumb on the cost of precast, in-home concrete installations is around $85 to $100 per square before delivery and installation. Your budget for delivery and installation will vary depending upon access to your site and the complexity of your installation, but on average will add another 40% to your costs. Keep in mind that project installation costs may vary widely as it is difficult to anticipate all site conditions.
In some cases, more complex design and installation scenarios require a time and materials approach.