Here are some key steps to follow: carefully examine the lintel for defects or damage before installation, ensure the lintel is level both across the opening and front to back, bed the lintel on mortar to ensure even load distribution, and allow the mortar to cure before. Here are some key steps to follow: carefully examine the lintel for defects or damage before installation, ensure the lintel is level both across the opening and front to back, bed the lintel on mortar to ensure even load distribution, and allow the mortar to cure before. Learn how to design a lintel beam for a span of reinforced concrete lintel, including load calculations, steel reinforcement detailing, and proper sizing according to construction standards. more Learn how to design a lintel beam for a span of reinforced concrete lintel, including load. So, you've decided to take on the noble quest of making a concrete lintel. Kudos! It's not just a fancy word for a beam; it's the unsung hero holding up your walls and keeping your home from becoming a modern art installation. Above doors and windows, lintels prevent cracks and sagging and can also support floor joists or roof loads when. Before coming to the design part, it is important to know the importance of lintels in structure. A lintel is a horizontal structural member that is present on top of doors, windows, etc. DISCLOSURE: https://groundedinconcrete.