BUILDING PROBLEMS 



contractor counts 16 bricks of the ordinary size (8"x4"x2") 

 for every square foot of surface in a wall 8 in. thick ; 24 for 

 a wall 12 in. thick. He makes a deduction for half of the 

 space of all openings. 



Aisle 18 Inches Wide 



Class Room 21 Ft. X 30 Ft. 



All Windows 3 Ft. X 6 Ft. 6 In. 



Row (f Desks 3 Ft. Wide 



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FLOOR PLAN OF SCHOOLHOUSE 



113. Rule. To estimate the bricks for a wall, multiply the 

 distance around the building by the height of the building 

 in feet and make a deduction for half of the openings in 

 square feet ; multiply this product by 16 if the wall is 8 in. 

 thick, and by 24 if the wall is 12 in. thick. 



