19 Century Cill Detail
Old imperial bricks varied in height, metric bricks are 65mm. Old timber cills were deep and often aligned with a course of bricks.
At 55mm The Radlington is a modern interpretation and allows for packing, expansion, Baypole jacks and irregular mortar. So if you are replacing traditional timber windows, installation becomes easier and the end result more authentic.
If your installation is a new build, you can recreate this traditional look with The Radlington.