1. Start With Deep Coordination
   
   Before touching a single block, study and coordinate all drawings — Architectural, MEP, Interior, and Façade.
   This step is critical. Most site problems come from missing coordination.
   
   Example:
   In toilet areas, if you’re using concealed tanks, the wall must be thicker than 25 cm to fit the system and maintain acoustic performance.
   
   Always document your coordination and send it to all parties by email. Clear communication protects you later.
   
   
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   2. Mark Clearly and Color-Code Walls
   
   Use color coding for each wall thickness.
   Don’t rely only on hatching — workers can easily mix up 15 cm and 20 cm walls.
   Clear colors = fewer mistakes.
   
   
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   3. Always Build From Grid Lines
   
   Grid lines are your best friend.
   
   Never measure block walls from other walls.
   Always measure from axes — that’s how you guarantee accuracy and perfect 90° corners.
   
   
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   4. Build the First Layer and Inspect
   
   Lay one layer of blocks, check alignment and measurements, then call for inspection.
   Only after approval do you continue.
   
   This step saves days or even weeks of rework.
   
   
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   5. Ensure Straightness & Verticality
   
   The most challenging part of block work is keeping walls straight.
   
   Use:
   
   Plumb bob
   
   Plumb fixed from slab
   
   String line
   
   
   Your workers must follow these references continuously.
   
   
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   6. Check Block Quality
   
   Cure blocks with water
   
   Test samples when possible
   
   Simple drop test helps detect weak blocks (not perfect, but practical)
   
   
   
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   7. Manage Lintels, Openings & Levels
   
   Confirm finishing levels with the MEP teams
   
   Fix aluminum/steel guides on walls for windows and doors
   
   Make sure all teams use the same +1.00 m level throughout the building
   
   
   
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   8. Structural Requirements
   
   Walls higher than 3 m or longer than 4 m must include:
   
   Concrete stiffeners
   
   Proper lintels
   
   
   This prevents cracks and instability.
   
   
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   9. Protect Walls From Cracks
   
   Spray water regularly to avoid shrinkage cracks.
   Install steel corners where walls meet columns or shear walls — this prevents corner cracking.
   
   
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   10. Distribute Materials Properly
   
   Do not allow workers to store all blocks and mortar in one location.
   It causes slab deflection and safety risks.
   
   
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   11. Keep the Site Clean
   
   A clean site reflects professionalism and helps visitors and consultants see your real work.
   It also improves morale and mental well-being.
   
   
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   Extra Notes From Experience
   
   • Safety
   
   PPE, stable scaffolding, and designated cutting areas for dust control.
   
   • Mortar Mixing
   
   Follow ratios, avoid overmixing, and never add water to expired mortar.
   
   • Door & Window Coordination
   
   Confirm all opening dimensions with aluminum/carpentry teams early.
   
   • Practical Tolerances
   
   Verticality: ±5 mm
   
   Straightness: ±5 mm
   
   Level: ±3 mm
   
   
   • Toolbox Meetings
   
   Before starting, gather your team and explain wall colors, codes, and levels.
   
   • Documentation
   
   Daily logs of progress, photos, issues, and decisions create transparency and protect you in disputes.

Block work may look simple, but it requires engineering discipline, technical understanding, and real leadership on site.
A well-coordinated block work phase sets the foundation for the entire project—literally and figuratively.

If you’re a young engineer or a manager leading a project, master these basics. They will save you time, money, and countless headaches.