ESTIMATES OF MATERIALS. 19 



Estimate of Materials for a Stave Silo. 



Size 12x28 ft., capacity 60 tons. 



Bricks 1800 for foundation, 1 foot thick, 2 ft. deep. 

 Staves 77 2x6, 16 ft. dressed 4 sides. 

 Staves 77 2x6, 12 ft. dressed 4 sides. 



Rods 10, 19% ft. long y 2 in. iron, with % threaded ends and 

 nuts. 



Staples 2 gross, %x2 in. 



Iron tighteners 20 holding ends of hoops. 



Rafters 2 2x6 pieces, 14 ft. long for roof center. 



Rafters 2 2x6 pieces, 13 ft. long, for roof next center. 



Side rafters 48 ft. 2x4 pieces. 



Roof sheeting 170 ft. common. 



Tin sheeting 196 ft. 



Cement for floor 2 bbls. 



Estimate of Materials for a Wisconsin Improved Silo. 



Size 30 ft. deep, 20 ft. inside diameter, capacity 200 tons. 



Stone foundation 7.5 perch. 



Studs 2x4, 14 and 16 ft., 1491 ft. 



Rafters 2x4. 12 ft., 208 ft. 

 JRoof boards Fencing, 500 feet. 



Shingles 6 M. 



Siding Rabbeted, 2660 ft. 



Lining Fencing, ripped, 2800 ft. 



Tarred paper 740 Ibs. 



Coal tar 1 bbl. 



Hardware $6.00. 



Painting (60 cents per square) $13.20. 



Cementing bottom $5.00. 



Carpenter labor (at $3 per M and board) $33.17. 



The estimated cost of the last silo is $246.39; it is an out- 

 side, wholly independent structure, except connected with the 

 barn in the manner shown in Fig. 20, with entrance and feeding 

 chute toward the barn. 



Estimate of Materials for Stave Silo. 



12 ft. in diameter, 24 ft. deep, capacity 49 tons. 



1 2-3 yards of rock gravel. 



4 barrels of sand. 



1 barrel of cement. 



2260 ft. tongued and grooved staves. 



72 ft. 3x6, 24 ft. door frames. 



358 ft. % in. round iron for hoops and bolts, weight 465 Ibs. 



9 lugs. 



54 nuts. 



Preservative ($1.50). 



