STRUCTURAL MATERIAL 



65 



On the other hand, there is now such a 

 variety of structural material to be had that 

 it is quite possible, and very often desirable, 

 for the buyer to design a house according to 

 his own ideas or to fit his own special needs 

 or location; select and purchase the materials 

 and erect it with his own help to suit his 

 special requirements. 



In order to do this it is necessary to know 

 the names and uses of the various members 

 which go to make up the house. The prin- 

 cipal ones are shown in Fig. 33 and are de- 

 scribed in the following paragraphs. 



Glazing-sill or Sash-sill. This sill is bolted 

 to the top of the wall, usually by bolts set into 



Fig. 34. Types of sills. A, B, C, and D are wood sills; 

 E is cast-iron 



the concrete, heads down, when the wall is 

 built. It is known as a sash-sill when the 

 house is equipped with ventilating sash along 



