Vertical Cross Sections
Section with Ultra Low Threshold (No Cill)
Section with Standard Threshold (No Cill)
Both of the above have the option of putting a cill underneath. This would add another 25mm to the threshold height. The cill is available in various widths with 150mm being the most popular choice.
Ultra Low Treshold with Cill
Standard Threshold with Cill
If you require a trickle vent then either a 17mm or 42mm add-on is placed on top of the head profile. This provides adequate space for any plasterline.
Cross Section through a French Door arrangement
This configuration occurs where there is a french door arrangement.
ie on styles 211, 431/413, 633, 651/615
Please note that the handle style may differ depending upon the chosen option.
Cross Section where an even number of sashes end on a roller
This configuration occurs where there is an even number of sashes on one side
ie on styles 220/202, 312/321, 422, 440/404, 532/523, 642/624, 752/725, 743/734.