CHAPTER VI 



ERECTION OF STAVE SILOS 



ERECTING WITH SCAFFOLD 



Inside and Outside Scaffolds. In the use of the scaffold 

 two quite different methods have been followed. In one, 

 the scaffold is built inside and in the other, outside of the silo. 

 The former method is not common and is of questionable 

 success, as an outside scaffold is most necessary for putting 

 on the steel. The inside scaffold uses a little less lumber 

 than the outside, but it is about as much trouble to build 

 and does not have the advantage of being out where it is* 

 needed for conveniently putting on the steel or hoops. 



Construction. As seen from Fig. 13, in building the out- 

 side scaffold, place 2x6 uprights a short distance from the 

 foundation and about 8 or 9 feet apart. Thus the number 

 of the uprights will depend upon the size of the silo that is 

 being built. Usually the scaffold is built 16 feet high, thor- 

 oughly braced, and with brackets placed near the top of the 

 uprights and extending in toward the silo. The uprights 

 must be thoroughly braced, not only to one another, but to 

 stakes in the ground, farther out from the foundation. 



Before building the scaffold, the door frame should be 

 upended in place and thoroughly plumbed and guyed in 

 every direction. 



If the silo is to be built in two sections with the lap only 2 

 feet, it is convenient to build the silo to the height of the 

 scaffold before extending the scaffold any further. A few of 

 the lower hoops can be then put in place and the silo made 

 fairly stable before extending it any higher. If the staves 



