Deck foundations are a key element of any deck. The foundation supports the weight of the deck and everything that sits on it, ensuring the structure is stable and safe. The result of an improperly installed deck foundation will result in deck failure, potential injury and damage. Popular options for deck foundations are screw pile, concrete pile and concrete pad foundations. In this article, we will discuss the differences between these three types of deck foundations and determine which one is better.
Screw Pile Deck Foundations
Screw pile deck foundations consist of long, steel screws that are twisted into the ground using a hydraulic torque motor. These screws are made from durable materials such as galvanized steel, which makes them resistant to rust and other environmental factors. Screw piles are typically installed using a skid-steer or small excavator, which can access tight spaces where large equipment cannot.
One of the primary advantages of screw pile deck foundations is that they can be installed quickly and with minimal disruption to the surrounding area. The installation process does not require any excavation, which means there is no need to remove large amounts of soil or disrupt any existing landscaping. This can be especially beneficial in areas with limited space, steep terrain, or delicate ecosystems. They are relatively low cost due to their quick installation with no materials being hauled off site.
Another advantage of screw pile foundations is their versatility. They can be used in a wide range of soil types, including sandy, loamy, and clay soils. They can also be installed at a variety of depths, depending on the load requirements of the deck. Additionally, screw piles are relatively easy to remove, making them a great option for temporary structures.
Once installed, you can immediately begin installing the deck which is a great advantage as opposed to concrete piles. Also once set, you can make minor height adjustments to the screw piles for added ease of installation with the deck beams.