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Openings, Lintels and Ring Beams
Updated 9/26/2026
EN728.7 KB
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What you'll learn
- Understand the role of door and window openings in house construction and why correct sizing matters
- Set out door and window openings accurately, keep jambs plumb, and set frames or leave clean openings
- Identify lintel types (precast, cast in place) and know minimum bearing requirements (150mm each side)
- Explain why ring beams tie walls together and where they are placed in earthquake-prone regions
- Place reinforcement per structural drawings, set formwork, mix and place concrete 1:2:4, cure, and strike formwork
About
Learn to set out door and window openings, install lintels, and build ring beams that tie walls together — essential skills for safe masonry work in Tanzania.
What's inside· 14 lessons
- 1Lintels: Types and Installation
- 2End Test
- 3Reinforcement, Formwork and Concrete for Ring Beams
- 4Lintel Bearing Requirements
- 5Safety Note
- 6Lintels: Types and Installation
- 7Types of Lintels
- 8Key Vocabulary
- 9Setting Out Door and Window Openings
- 10Installation Steps for Precast Lintels
- 11Installation Steps for Cast In-Place Lintels
- 12Why Openings Matter
- 13Ring Beams (Tie Beams) Purpose and Placement
- 14Types of Lintels
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