When you’re building a house, you quickly realize that the most critical components are often the ones you can’t see when the project is finished.
Lintels are a prime example. They sit quietly above your doors and windows, doing the heavy lifting—literally—to ensure your home stands strong for decades.
If you're embarking on a self-build, an extension, or a large-scale residential project, getting your lintel strategy right is paramount. Here is a breakdown of what lintels do, the types you need to know about, and how you can save time and money sourcing them.
What is a Lintel and Why Do You Need It?
A lintel is a horizontal structural beam used to span an opening in a wall, usually above windows and doors.
When you cut an opening into a brick or block wall for a window, you create a weak point. The weight of the masonry, roof, and floor joists above that opening still needs to be supported. A lintel redistributes that weight (load) safely to the jambs (the vertical sides of the opening), preventing the wall from collapsing or cracking.
Key Types of Lintels
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Steel Lintels: The industry standard for modern cavity wall construction. They are lightweight, incredibly strong, and galvanized to prevent rust.
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Concrete Lintels: Often used for internal walls or load-bearing openings where aesthetics aren't a priority. They are cost-effective and highly fire-resistant.
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Timber or Stone Lintels: More common in traditional or heritage builds where architectural authenticity is required.
The Lintel Headache: Getting the Sizes Right
Choosing the right lintel isn't just about measuring the width of your window. You have to account for:
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The Structural Load: Is it just supporting a few rows of bricks, or is a heavy roof truss sitting right above it?
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The End Bearings: A lintel must extend past the opening on both sides (usually a minimum of 150mm) to bed securely into the wall.
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Wall Construction: Cavity widths vary, and your lintel must match the specific profile of your external brick and internal blockwork.
Get the calculations wrong, and you risk structural sagging. Buy the wrong sizes, and you waste thousands of pounds in delays and returns.
Take the Stress Out of Ordering with Construction Megastore
This is where most self-builders and contractors hit a roadblock. Reading architectural drawings to extract every single lintel size and load requirement—a process known as a "take-off"—takes time, precision, and structural expertise.
At Construction Megastore, we believe you shouldn't have to pay extra just to figure out what you need to buy.
Our Free Lintel Take-Off Service
We offer a 100% Free Lintel Take-Off Service to take the guesswork out of your build. Instead of spending hours squinting at blueprints, you simply hand them over to our experts.
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How it works: You send us your architectural drawings and structural calculations.
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What you get: Our specialist team will analyze your plans, calculate the exact schedules, lengths, and load capacities required, and provide you with a fully itemized, competitive quote.
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The Benefit: You get the exact lintels you need, delivered straight to your site, with zero wasted materials and total peace of mind.
Ready to Simplify Your Build?
Don't risk the structural integrity of your home on guesswork. Let Construction Megastore handle the hard work for you.
Get in touch with our expert team today to submit your plans or ask any questions about your upcoming project:
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📧 Email us: sales@constructionmegastore.co.uk
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📞 Call us: 0203 4042535
Send over your drawings today, and let's get your project moving safely and efficiently!
