MATERIALS. 



All structural materials should conform as 

 closely as possible to the specifications given 

 in the "builder 1 s list and lumber order list. 

 That minor deviations must some times "be made 

 is raccgnized as unavoidable. 



SILIS. 



Should preferably be of cedar or red- 

 wood. Douglas fir may be used as a second choioe. 



Set rectangular sills with narrow edge 

 up. 



Sills at corner should be halved to- 

 gether. Whon two or more pieces are necessary 

 to form the total length of sill a 'splice should 

 be made on the foundation supports, as indicated 

 on the plan (See Cut Ho.BM. 9) 



Two or more joints should not occur 

 on the same line of foundation posts. Arrange 

 to have the splices made over foundation posts 

 of different sets. 



ROOF. 



Materials for roofs at different ele- 

 vations are provided. At elevations within the 

 ranges mentioned use the roofs of stated pitches* 

 Exception to the above should occur only where 

 snowfall is not a source of hazard as on some 

 of the southern Forests and on the Modoc. 



Rafters and other members of the roof 

 frame should be of selected 'straight grain lum- 

 ber* 1st choice Douglas fir; 2nd choice white 

 fir, 3rd choice yellow pine, free from knots 

 and other imperfections. Too much attention 

 cannot be given the selection of the best sticks 

 of the lumber order for rafters. 



Where roof trusses are used fasten the 

 members securely with lOd nails in members one 



-20- 



