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Something a new planner on your job would get wrong. Write it the way you'd say it to them on site — no need to make it sound official.

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Written by us to show the shape — not real submissions

Blockwork above level 20 runs about 30% slower than the ground floors and it isn't the masons — it's hoist queuing. If you're planning a tower, split the blockwork rate at whatever floor the second hoist gets reassigned to the façade. We didn't, and the last eight floors ate our float.

Field note · UAE · high rise

0.85 mh/m² for 200mm blockwork, crew of 10, normal ground-floor conditions, measured over four typical floors. Summer with the midday break it went to 1.05 on the same crew.

Rate · KSA · 8 floors sampled

Your page on retained logic says P6 keeps the original relationships — true, but it's worth saying that the setting is per-project, not global, so copying a project doesn't carry it. Cost us a week of arguing about why two files gave different dates.

Correction · retained-logic-vs-progress-override

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