Partition height
Heights above 3.0m typically add 10–25% through heavier framing, additional bracing and reduced labour output.
Board specification
Fire, moisture-resistant, impact-resistant or high-density acoustic boards commonly add £8–£25/m² depending on layers and manufacturer.
Acoustic performance
Resilient bars, specialist insulation and sealed perimeters can increase the rate by £12–£35/m².
Openings and corners
Frequent doorways, deflection heads, corners and abutments can add 15–30% to otherwise repetitive partition runs.
Access and logistics
Restricted delivery routes, occupied areas or out-of-hours installation may increase rates by 10–25%.
Finishing standard
Moving from taped joints to a full plaster skim generally adds £10–£16/m², subject to programme and area.