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Pillar Foundation House Guide for Lasting Construction

April 28, 2025

Ever wonder how a house stays upright and safe when the ground underneath isn’t exactly solid or flat? A pillar foundation—sometimes called a pier foundation—uses sturdy columns to hold your home above the ground, keeping everything level even when the soil is a bit unpredictable. This approach can really come in handy if your lot is soggy, sloped, or just not ideal for a typical slab foundation.

If you’ve ever peeked under a home with a crawl space, there’s a good chance it’s sitting on a pillar foundation. The piers or columns are spaced out and support the beams that hold up the whole house. You’ll see this style a lot in wet or flood-prone areas, since it keeps your floors dry and lets air move underneath.

Picking the right foundation really matters for your home’s safety and comfort. Whether you’re starting from scratch or fixing up an old place, understanding the ups and downs of pillar foundations can help you make a smarter choice.

Table of Contents hide
1) Understanding Pillar Foundation House Systems
1.1) What Is a Pier Foundation on a House
1.2) Pillar, Post, and Pier Foundation Types
1.3) Pier and Beam Foundation Diagram
2) Planning and Building a House on Pillar Foundations
2.1) Pier and Beam Foundation Plans
2.2) How to Build a Pier and Beam Foundation
2.3) Pier Footings and Support Considerations
2.4) DIY Pier and Beam Foundation Design
3) Frequently Asked Questions
3.1) What is a pillar foundation?
3.2) Is it cheaper to build a house on piers?
3.3) What is the most expensive foundation for a house?
3.4) What is the life expectancy of a pier foundation?
3.5) Related Posts

Understanding Pillar Foundation House Systems

concrete pier foundation repair

Pillar foundation house systems rely on strong, vertical supports buried deep in the ground. They’re built for stability, moisture resistance, and let’s be honest, they make repairs way simpler than with a concrete slab.

What Is a Pier Foundation on a House

A pier foundation (also called pillar or pile foundation) means a bunch of solid vertical columns—usually concrete, brick, or steel—are set into the ground. Each pier pushes the weight of your house straight down, so even if the soil moves or isn’t level, your place stays put.

Homes on piers are lifted off the ground, which is great for keeping out water and critters. Plus, you get a crawl space underneath. That makes it much easier to reach plumbing, wiring, or heating when something needs fixing or updating.

For places where the ground shifts or stays wet, pier foundations just make sense. If you want a little more detail, check out this overview on pier and beam foundations.

Pillar, Post, and Pier Foundation Types

There are a few different takes on pillar, post, and pier foundations, each with their own pros and cons. A post and pier foundation uses posts—wood or steel—set on piers to support the beams under your house. You’ll see this a lot with smaller homes or cabins.

Pier and beam foundations use concrete or brick piers, topped with horizontal beams (usually wood or steel). The beams spread out your home’s weight across the piers. Both styles lift your house higher than a slab, which helps keep water out and gives you that handy crawl space.

The post and beam foundation is similar, but relies on fewer, larger posts and beams. Which one’s best? It depends on your soil, local weather, and what you’re building.

Pier and Beam Foundation Diagram

A pier and beam foundation is basically a grid under your house. Concrete piers are spaced out and hold up big beams, which run in rows and support everything above.

If you looked at a simple diagram, you’d see vertical piers in the ground, beams laid across the top, and the house floor sitting above all that. This setup spreads out the weight and gives easy access underneath for plumbing or electrical work.

3D illustration of pier and beam foundation

Planning and Building a House on Pillar Foundations

A pillar foundation gets your home up off the ground, away from moisture, pests, and shifting soil. Picking the right pier and beam system matters for durability and cost.

Pier and Beam Foundation Plans

Planning starts with a good site plan and design. Things like your soil, drainage, and slope affect how many piers you’ll need and where they go. Most places make you get a licensed engineer to sign off before building, just to keep things safe and up to code.

For most homes, concrete pillars go under the main walls and key load points. Floor beams rest on top, sending the weight down to the ground. Layouts can vary—a simple crawl space, a full basement on piers, or a raised home for flood zones.

How to Build a Pier and Beam Foundation

Building a pier foundation has a few main steps. First, clear and level your site. Dig holes for the concrete posts—usually deeper than the frost line so things don’t move in winter. Pour concrete footings with rebar for strength.

Set your piers on the footings, making sure everything’s spaced and leveled right. When the concrete cures, lay out your horizontal beams (wood or steel) across the piers. Get the beams lined up—these support the whole floor above. Use sturdy anchors and weatherproofing to keep things from shifting or rotting.

Pier Footings and Support Considerations

Solid pier footings are the backbone of a good pier and beam foundation. Size and depth depend on your soil, house size, and how deep the frost goes. Usually, footings are at least a foot wide and go 12–24 inches down. Piers might be spaced 6 to 10 feet apart, but always check your local codes.

Beams and posts must line up under the main walls for even weight. You might need extra piers under heavy rooms like kitchens or near garages. Use materials that resist water to avoid rot and shifting.

DIY Pier and Beam Foundation Design

If you’re into DIY, designing your own pier and beam foundation means getting the details right. Measure carefully and mark where each pier will go. Dig holes to the right depth, set up forms, and pour your concrete.

Don’t rush—let the concrete cure before adding beams. Double-check level and spacing, since mistakes here can mean uneven floors or bigger problems down the road. If inspections are required, schedule them as you go. For small homes or cabins, lighter materials might work, but always check weight limits. Here’s a DIY video guide if you want to see the process in action.

Frequently Asked Questions

Pillar foundations definitely have some unique advantages, and you might be curious about how they stack up in terms of cost and long-term durability. What’s the priciest foundation type, anyway?

What is a pillar foundation?

A pillar foundation (also called a pier or pier-and-beam foundation) uses vertical columns to hold up the house. These are spaced out under the structure and send the weight straight down into the ground. You’ll see this in places with tricky soil or flood risks.

Is it cheaper to build a house on piers?

Usually, yes—a house on piers costs less than one with a full basement. You don’t need as much concrete or digging, and labor is often cheaper. But, it really depends on your soil and house size.

What is the most expensive foundation for a house?

Full concrete basements usually top the list for cost. They need deep digging, special waterproofing, and a lot of materials. Slab and pier foundations are almost always less expensive.

What is the life expectancy of a pier foundation?

If you build it right, a pier foundation can stick around for 75 years—sometimes even longer. Of course, it’s not totally hands-off; you’ll want to keep an eye out for rot or any settling, and maybe give it a quick check now and then. Stuff like drainage and the type of soil underneath can really make a difference in how long it lasts. If you’re curious about what can go wrong, or just want a few tips on keeping things solid, send us an inquiry.

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Filed Under: concrete piers, Foundation Piers, Pier And Beam Foundations

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Address:

801 Secretary Drive, Ste J, Arlington, Texas 76015

Contact:

Phone: (817) 226-7221

  • Home
  • Services
    • Slab Foundation Repair
    • Pier and Beam Foundation Repair
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    • Helical Piers
    • Mudjacking & Polyurethane Foam Lifting
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      • French Drains
      • Surface Drains
  • About Us
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Arlington, TX
801 Secretary Drive, Ste. J,
Arlington, Texas 76015
Phone: (817) 226-7221

Dallas, TX
325 North St. Paul Street #3100,
Dallas, Texas 75201
Phone: (214) 537-4577

Fort Worth, TX
420 Throckmorton St Suite 200,
Fort Worth, Texas 76102
Phone: (817) 798-5656

Frisco, TX
8992 Preston Rd Ste 110-742,
Frisco, Texas 75034
Phone: (817) 277-1719

Irving, TX
545 E John W Carpenter Fwy # 300,
Irving, Texas 75062
Phone: (214) 536-9119

Mansfield, TX
2364 Hwy. 287 Suite 107
Mansfield, TX 76063
Phone: (682) 422-3334

Retrace Logo HDFR White 1

Address:

801 Secretary Drive, Ste J, Arlington, Texas 76015

Contact:

Phone: (817) 226-7221

  • Home
  • Services
    • Slab Foundation Repair
    • Pier and Beam Foundation Repair
    • Drilled Piers
    • Helical Piers
    • Mudjacking & Polyurethane Foam Lifting
    • Drainage Systems
      • French Drains
      • Surface Drains
  • About Us
    • Our Company
    • Lifetime Foundation Warranty
    • Areas We Serve
    • Share Feedback
    • Financing
  • Methods Of Repair
    • Concrete Pier Foundation Repair
    • Steel Pier Foundation Repair
  • Blog
  • Contact Us

Arlington, TX
801 Secretary Drive, Ste. J,
Arlington, Texas 76015
Phone: (817) 226-7221

Dallas, TX
325 North St. Paul Street #3100,
Dallas, Texas 75201
Phone: (214) 537-4577

Fort Worth, TX
420 Throckmorton St Suite 200,
Fort Worth, Texas 76102
Phone: (817) 798-5656

Frisco, TX
8992 Preston Rd Ste 110-742,
Frisco, Texas 75034
Phone: (817) 277-1719

Irving, TX
545 E John W Carpenter Fwy # 300,
Irving, Texas 75062
Phone: (214) 536-9119

Mansfield, TX
2364 Hwy. 287 Suite 107
Mansfield, TX 76063
Phone: (682) 422-3334

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