The R15 Prestressed Concrete Lintel is a high-quality structural support manufactured in the UK by Stressline. Designed to provide strength, durability, and long-term reliability, it is suitable for a wide range of structural openings in both residential and commercial construction. Its universal profile means it can be installed either way up, offering flexibility during installation and simplifying on-site work.
Produced under strict quality control processes, these lintels are fully compliant with the relevant British Standards, ensuring consistent performance throughout the build. For safe and effective installation, a minimum end bearing of 150 mm is required on each side of the opening.
Available Sizes
100 × 140 × 900 mm
100 × 140 × 1200 mm
100 × 140 × 1500 mm
100 × 140 × 1800 mm
100 × 140 × 2400 mm
100 × 140 × 3000 mm
FAQs
What is a prestressed concrete lintel used for?
It is used to support structural openings such as doors and windows by transferring loads safely to the surrounding masonry.
Why does the lintel need a 150 mm end bearing?
A minimum 150 mm bearing ensures the lintel transfers weight effectively into the supporting walls, maintaining structural integrity and safety.
Can this lintel be installed either way up?
Yes. The universal profile is designed for flexible installation, allowing the lintel to be used in either orientation without affecting performance.
Absolutely. Check availability at your nearest branch during checkout or contact us directly.
Do you offer bulk pricing or trade discounts?
Yes, we offer competitive rates for trade customers and bulk orders. Contact our team for a tailored quote.
What if the product arrives damaged?
Please notify us within 48 hours of delivery. We’ll arrange a prompt replacement or refund as needed.
How fast is the delivery time?
Most items are delivered within 2–5 working days, depending on stock and location. Some products may take longer times.
What is the Return Policy?
We accept most returns within 14 days of delivery, provided the items are unused, in their original packaging, and in resalable condition. Please contact our customer service team to arrange a return or discuss any concerns.
Over 35 Years of Trading
+£3M Stock Value
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10 Branches Across London & South East
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