Referring to Ching’s we have masonry wall sections and how how concere, steel wood floor and roof system are supported by and tied to various types of masonry bearing walls. And how pressure treated for different materials and also how joists work together. Natural stone masonry is a durable, weather resistant construction materials that may be laid in mortar much like clay and concrete masonry units to make bearing and non bearing walls. We have three different types of rubble which are random rubble, coursed , and squared. And also a 3 types of ashlers which are random , coursed and broken rangwork ashlar. Each one is built with a different type of stone. Therefore we have many different elements for window such as rough opening, casing trim, window frame and sash and glazing and each one of them have a different function. Also the opening of the window would make a difference too and have different shapes such as fixed, casement aweing, sliding and others.