The published heights of Siniat partitions are constrained by the minimum values of Serviceability Limit States (SLS), Ultimate Limit States (ULS), and a 10mm maximum deflection requirement outlined in Annex A of BS 5234-2. 

These stringent height requirements, coupled with crowd load testing conducted in accordance with BS 5234-2, have led to the determination that Medium or Heavy duty partitions can withstand a maximum horizontal line load of 0.75kN/m at a height of 1.2m, while Severe duty partitions can withstand a maximum horizontal line load of 1.5kN/m.