We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is a Mat Foundation?

Mary McMahon
Updated May 23, 2024
Our promise to you
InfoBloom is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At InfoBloom, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A mat foundation is a type of shallow foundation made by pouring concrete over a reinforcing mat of material, usually rebar. This design is also known as a raft foundation in some regions. A mat foundation distributes the weight of the structure very close to the surface, rather than deep into the ground, and it is suitable for a range of environments. If an engineer thinks that a mat foundation is appropriate or necessary for a structure, he or she can design the specifications to meet the need and can supervise the creation of the mat and the pouring of the foundation.

The depth of this style of foundation can vary and will depend on the specifications of the project. Engineers can find mat foundations helpful when they need space under a structure for underground facilities or when they build on potentially unstable soils. The foundation starts with a tight mat made from rebar to create a lattice of support. Some designs include plastic blocks for weight distribution that will also cut down on the amount of concrete needed.

Construction workers might require several days to set up and secure all of the rebar. Tensioner bars can be placed inside the mat to keep it stable. The workers pour concrete continuously over the foundation until the mat is entirely covered, and they use tools to vibrate it into place to eliminate air bubbles and any other issues that arise, before finishing off the top and allowing the foundation to set. After the foundation is finished curing, building can progress.

The finished mat foundation should distribute the weight evenly, without specific load-bearing pillars that send the weight of the structure deep underground. It can cover a large area and will remain stable and solid in a variety of conditions. Mat foundations can be used for residential and commercial construction. Foundation work such as repairs can be challenging with this design because it is a flat, closed area of concrete without easy access points.

Engineers and foundation specialists typically are needed to design a mat foundation unless the area is very small, such as a foundation under a shed. They review the work site and the building specifications to determine what kinds of loads will be present and how the soil under the building might behave. This information is valuable for the stage of the process when they design the foundation, including the configuration of supports in the mat to distribute weight and maintain tension across the finished foundation.

InfoBloom is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Link to Sources
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a InfoBloom researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments
Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

Learn more
InfoBloom, in your inbox

Our latest articles, guides, and more, delivered daily.

InfoBloom, in your inbox

Our latest articles, guides, and more, delivered daily.