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 Housing Joint?

By Dale Marshall
Updated May 17, 2024
Our promise to you
About Mechanics 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 About Mechanics, 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 housing joint is a very simple, very strong woodworking joint that joins two workpieces at right angles by cutting a slot, or dado, into one piece and fitting the other piece into it. Commonly found in bookcases and other shelving units, as well as drawers and cabinet carcasses, they're favored by woodworkers because of the ease of their construction, typically requiring that only one workpiece be cut. A housing joint consists of a dado perpendicular to the front edge of a workpiece and no deeper than a third of its thickness. The width of the dado matches the width of a second workpiece, which fits into the dado and creates a strong right-angle joint.

One of the most common uses of a housing joint is in the construction of shelving units, but they're also frequently used in the construction of cabinet carcasses. When building shelves, identical dadoes are cut into each side of the unit, perpendicular to the front edge, to the exact dimensions of the end of the shelf. When both dadoes are properly cut, the shelf will fit perfectly in place. Modern housing joints are nearly always cut with a router and a jig, but were carefully cut by hand in the days before power tools.

If the cut is made all the way through from the front to the back of the supporting sides, the joint is called a "through" housing joint, and no cut is made to the shelf itself. A drawback of the through housing joint, though, is that the elements of the joint are visible from the front of the workpiece, which often detracts from its aesthetic appeal. An alternative is the "stopped" housing joint, in which the cut is stopped short of the front, and sometimes the back, of the side support. A stopped housing joint generally requires that the corners of the shelves be trimmed to facilitate fitting the ends into the stopped dadoes. When viewed from the front, the dado won't be visible, giving a clean, neat appearance.

Housing joints are one of a handful of strong, simple joints often used to make right-angle joints. It has three elements: two sides and a bottom. A "rabbet" joint is built almost the same, but is cut into the end of the workpiece so that it has only one side and a bottom. When a rabbet joint is used, the second workpiece is usually cut to fit. A butt joint is made by butting two pieces of wood together, edge to face, without any cutting at all. The two pieces are usually secured with nails and screws, as there would be too much pressure and stress for glue to secure a butt joint.

Like most woodworking joints, housing joints are usually secured with carpenter's glue and clamped until the glue has cured. Depending on the joint's use, nails or screws can also be driven through the bottom of the dado and into the edge of the shelf, but most woodworkers disdain the use of screws or nails in their joinery. Another, more popular way to strengthen housing joints is to secure them with glue blocks. These are simple blocks of wood that fit snugly into the angles of woodworking joints and are glued in place, providing additional support to both elements of the joint and reinforcing the joint itself.

About Mechanics 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.
Discussion Comments
By Talentryto — On Apr 01, 2014

@raynbow- I would not recommend installing your shelves in this particular part of your living room. If you put them into your drywall without connecting them to joints, you may find that your shelving unites fall down unexpectedly. Not only could this mishap cause items to break, but it could also leave you with an expensive wall repair bill.

Though there are some types of screws available for installing shelves and other hanging items in areas without joints, this method is not recommended for hanging heavy units or for shelving that will hold heavy collectibles and glassware. Bottom line is that it's best to place your shelves where your joints are located to avoid future problems.

By Raynbow — On Mar 31, 2014

Do you always have to use housing joints when installing shelving? I have a corner in my living room where I want to put some wall shelves, but there are no housing joints in this particular area. Does anyone know if installing the shelves in this area is still possible?

About Mechanics, in your inbox

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

About Mechanics, in your inbox

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