74 



HOW TO BUILD A SIT.O. 



Fig. 22. Skeleton showing method of framing. 



Fig. 24. Showing plan 

 of joints. 



16, 24 inches apart, and No. 16 to 

 19, 32 inches apart. Fig. 24 shows the 

 method of jointing and spiking the 

 ends of chords, also the 2x8-inch up- 

 right support between the ribs. The 

 shiplap outside and the Ix4-inch floor- 

 ing inside are also shown. 



The regular chord in ribs No. 2 

 to No. 18 and part of rib No. 19 is 

 shown in the larger drawing, Fig. 32. 

 The smaller drawing represents the 

 chord for ribs No. 1 and No. 19. The 

 %-inch bolt holes shown are for bolt- 

 ing sill or rib No. 1 to the foundation. 



Another type of octagonal silo that has found favor in some 

 sections of the corn belt because of the fact that the material 



