Pier & Beam Foundations
Raised off the ground on piers, with wooden beams and floor joists carrying the weight above, with a crawl space underneath that tells the whole story.
A pier & beam foundation is the traditional way homes were built across the Texas Gulf Coast for generations. Instead of sitting directly on a concrete slab, the home is raised off the ground on a series of piers, with wooden beams and floor joists forming the structural floor system above.
That open space between the ground and your floor is the crawl space. It’s the reason pier & beam homes behave differently from slab homes, and the reason they’re worked on so differently.
How a Pier & Beam Foundation Is Built
A pier & beam foundation works as a system. Concrete, brick, or wood piers are set into the ground at intervals, and horizontal beams rest on top of them. Floor joists then span between the beams to support the subfloor and everything above. A common setup is a concrete pier poured up to just above grade with a pressure-treated wood post on top, keeping the rot-prone wood out of the wet soil while staying adjustable. When any one part of that system settles, shifts, or deteriorates, it affects the floors you walk on every day.
- Piers support the weight of the home from below: concrete, brick, or wood
- Beams run across the piers and carry the load horizontally
- Floor joists span between beams and hold up the subfloor
- The crawl space commonly provides access beneath the home, though access and conditions vary
What Goes Wrong Over Time
Because pier & beam homes are open underneath, they’re exposed to the ground’s movement and the coastal humidity in ways slab homes aren’t. Piers settle as the soil shifts. Wood beams and joists absorb moisture, age, and can rot. Supports that were level fifty years ago rarely still are today.
- Soil conditions and changes in ground moisture can cause movement beneath the home
- Wood beams and joists weaken with age and humidity
- Improper or missing support in problem areas
- Previous additions or modifications that shifted the load
Why Pier & Beam Is Different From a Slab
A slab foundation is a solid concrete pad the home sits directly on. A pier & beam foundation raises the home, with wood doing the structural work in between. That means the signs of trouble look different, the way you inspect them is different, and the repair process is entirely different. It’s also why we focus on pier & beam exclusively, because it’s a specialty, not a general job.
The Signs of a Pier & Beam Foundation in Trouble
Uneven or sagging floors are usually the first thing people notice. Doors and windows that stick, interior wall cracks, and bouncy or springy floors are all common signs that something underneath has shifted or weakened. If you’re noticing any of these, the first thing to do is understand what’s actually going on in the crawl space.
Frequently Asked Questions
How do I know if my home is on a pier & beam foundation?
Pier & beam homes are raised off the ground, usually with a crawl space underneath. You can often see vents around the perimeter of the home and an access panel to get beneath it. If you’re not sure, describe what you’re seeing when you call and we can help you figure it out.
Is a pier & beam foundation better than a slab?
Neither is inherently better. They’re just different systems. Pier & beam homes commonly include an accessible area beneath the home, although access and conditions vary. That’s a big part of why we specialize in them.
Do pier & beam foundations require more maintenance?
They benefit from periodic attention to the crawl space, including watching for moisture and checking the condition of piers, beams, and joists. Catching small issues early is usually far less involved than waiting until the floors are noticeably off.
Ready to Talk It Through?
Learn how a pier & beam foundation is built and why it settles.