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Number Of Working Platforms Allowed
Platform Loading
The maximum safe working load (the combined weight of the users, tools and materials) that may
be placed on the tower is the total weight less than the self weight of the tower. The total weight
for the towers shown in the schedule is 950kg.
Example 1:
A 850 tower built using the 3T method with a 4.2m platform height and a platform length of 1.8m
has a self weight of 151kg.
950kg - 151kg = 799kg maximum safe working load
total weight self weight (users, tools and materials)
Example 2:
A 850 tower built using the 3T method with a 11.7m platform height and a platform length of
2.5m has a self weight of 408kg.
950kg - 408kg = 542kg maximum safe working load total weight self weight (users, tools and
materials)
For greater heights and loads, consult Youngman for guidance.
On an 850, tower a platform comprises of a single deck only. The maximum safe working load (the
combined weight of the users, tools and materials) that may be placed on a platform is 275kg,
evenly distributed over the deck.
The quantities on pages 13 and 14, will enable BoSS towers to be built safely and therefore
comply with the requirements of the Work at Height Regulations 2005. They include double
guardrails to all platforms, and toeboards will need to be added if any levels are used as working
platforms and for storage of materials.
EN 1004 requires platforms at least every 4.2m, and these measures will exceed that
requirement.
Quantity Schedule - 850 Width Towers