Whether it’s a home or commercial tower, the foundation is one of the most important structural features. It handles the weight and stress of the building to ensure it’s sturdy and safe throughout its life span. There are two types: low and deep, and each is unique, and selecting the right new foundation construction will ensure your structure is supported.

The Difference Between Low & Deep Building Foundations

Low Foundations

Low, or shallow, foundations are poured near the surface of a property. They’re used when the surface soils are strong enough to support the weight of the structure. During new foundation construction, there’ll be light excavation below the surface, and individual concrete footings will be poured. These squares support individual columns that carry most of the structure’s weight. If walls carry the weight, a larger foundation will be poured, and this is known as a strip footing.

Shallow options are cheaper because long cylinders or concrete won’t have to be piled into the ground. If the soil is compressed, as with peat or alluvial deposits, low foundations aren’t the best option. They also can’t be used near bodies of water where scouring is a threat.

Deep Foundations

Deep foundations rely on concrete pillars installed far below the surface to bear the load of the building and transfer weight. This is best for tall, heavy buildings, like high rises or commercial towers, because they can handle higher loads than low foundations.

There are two options: end-bearing piles, which transfer the weight of the building through weak layers of soil into the stronger strata below, and friction piles, which disperse the weight throughout their entire length into the soil. The latter is best when the strong strata are out of reach. Deep foundations are more expensive; however, they’re far more versatile and provide superior support.

If you’re ready to start new foundation construction, contact the professionals at Anchor Systems Hawaii in Kailua. Serving Oahu for over 20 years, these skilled contractors use proven stabilization techniques for new projects and foundation repairs. They work closely with local engineers to ensure optimal results and can provide concrete crack repair and retaining wall installation. Learn more about their past projects online, or call (808) 262-9002 to speak with an expert about your new foundation construction plans.