152 ELEMENTARY AGRICULTURE 



9. How many feet of inch lumber will be required 

 to cover the inner wall of a "round" silo twenty-one 

 feet across and eighteen feet high? How many 

 feet of two-inch plank will be needed for a cover? 

 What will be the cost of all this lumber at $25 per 

 thousand ? 



10. What will it cost to put a cement floor in this 

 silo at 10 cents per square foot? 



11. How many 2x4 studdings eighteen feet long 

 and placed one foot apart will be required, and what 

 will be their cost at $24 per thousand? 



12. What will it cost for the lumber to floor a barn 

 forty by sixty feet with two and one-half inch plank 

 at $18 per thousand? 



13. The peak of this barn is twelve feet higher 

 than the eaves. What will inch lumber for sheeting 

 the gables cost at $24 per thousand. 



14. The rafters are made of 2x4, and twenty-seven 

 feet long, placed eighteen inches apart. How much 

 will they cost at $20 per thousand ? 



15. What will be the cost of the sheeting for the 

 roof at $16 per thousand if the roof projects two feet 

 at each end? 



1 6. What will it cost to shingle this roof with 

 shingles worth $3.25 per thousand, laying them five 

 inches to the weather and allowing for a double course 

 at the eaves? 



17. This building is placed on a wall twelve inches 

 thick and eight feet high. What is the cost of the 

 stone for same at $5 per cord? 



