We always get lots of questions from Quick Paint Rate users regarding rates painting to door frames, so I hope this helps:
If a door frame is to be painted BOTH sides (frame and archs) and has an overall girth n.e.300mm, you would use the £/Lm rate in Quick Paint Rate described as ‘Door Frame (to paint both sides of a door frame), n.e.300mm
If a door frame is to be painted ON ONE SIDE ONLY (frame and archs) and has an overall girth n.e.300mm, you would use the £/Lm rate in Quick Paint Rate described as ‘Door Frame (to paint ONE SIDE of a door frame), n.e.300mm.
Some QS’s measure the frame/stop and archs separately in which case you would use the separate £/Lm Door Frame (Standard Frame/Stop only, n.e.150mm) and £/Lm Door Frame (Standard Archs only), n.e.75mm.
Just to confuse things further: Under the UK rules of measurement if the overall girth of the painted door frame/stop/archs combined exceeds 300mm, the door frame should be measured in m2 and you must use the £/m2 rate in Quick Paint Rate described as Door Frame girth ex.300mm (m2 rate). The mistake many painters make is that they use their gen surfaces £/m2 rate which is nowhere near enough.
Hope this helps
paintingestimators.co.uk