Standard Jamb:The 102 x 30mm standard jamb shown left matches head, sill and mullion width. This wider frame is ideal on cavity brick installations where cement render will cover up part of the inner face. We have a building-in lug for the 102 x 44mm frame as shown lower right.

Wide Jamb: We have a building-in lug for nailing fin frame as shown below.

Built-in Weatherbar: All perimeter frame members including head and sub-sill have built-in weatherbar/nailing fins. This significantly improves weather performance and installation as shown on this page.