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Setting out and safe structure

PRO · 30 minutes · Set out square and understand load paths.

Visual learning map for Setting out and safe structure: observe, try, then explain. Set out square and understand load paths.
Visual learning map for Setting out and safe structure: observe, try, then explain. Set out square and understand load paths.

Answer by: Type. You can change method or take a break at any time.

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Our learning goal

Set out square and understand load paths.

Your turn: Choose one thing you would like to understand by the end.

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Full teaching script
  1. Today: Setting out and safe structure. Our goal: Set out square and understand load paths.
  2. Take one idea at a time. Pause after each sentence; ask for repetition whenever you need it.
  3. Every load must have a continuous path to the ground: roof to rafter, rafter to wall plate, wall to foundation, foundation to soil. Break the path and something sags. Set out square with the 3-4-5 method and check the diagonals — equal diagonals mean a true rectangle. Openings need a lintel with adequate bearing each side (usually 150 mm minimum) and structural work needs Building Regulations approval; load-bearing changes need a calculation, not an opinion.
  4. Together: choose one example from the explanation and show how it works. What do you notice?
  5. Your turn: Set out a 3 m × 4 m base with 3-4-5 and prove it with diagonals.
  6. Reflect: what made sense, and what would you like explained differently?
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