Why concrete screw piles at all? To understand whether it's necessary to concrete a screw pile, let's first understand what the process actually entails. It's simple: after the pile is screwed into the ground, concrete is poured into its shaft. It may seem like a small detail, but this pouring can significantly improve the characteristics of the pile foundation. In what cases is concrete justified? Increasing Bearing Capacity The first and most obvious advantage of concreting is increasing the bearing capacity of the pile foundation. If you're building a lightweight frame house, bathhouse, or gazebo on level and stable ground, the screw piles will easily withstand the load without any additional measures. But imagine a different situation: you're building a large two-story house from timber or brick, which places a significant load on the foundation. Or the site is challenging—peat, with a high water table, or clayey, unstable soil. This is where concrete beco...