What is a lining

Resting means in the building industry the designation of the interior of the openings in the walls, for example above the windows or doors. The lining of the window represents the lateral surface of the hole in the wall, the so-called block. The trim is flat, sloping and craned. Straight lining is the most common, with a right angle. A broken lining can occur after the buckling of window frames and the placement of new ones.