STONEWORK AND BRICKWORK 



97 



14 ft. high ; hip rafters, 4 pieces, 2 in. by 8 in., 24 ft. long ; 

 common rafters, 4 pieces, 2 in. by 6 in., 18 ft. long; jack 

 rafters, 2 in. by 6 in., 450 ft. total length ; sheeting, 450 ft. ; 

 bunches of shingles (1100 sq. ft. in roof). 



5. Estimate at market prices the cost of the bill of lum- 

 ber in problem 4. 



STONEWORK AND BRICKWORK 



111. Stonework is estimated,* by the cubic yard or the 

 running perch. Stone in the quarry or in massive buildings 

 is measured by the cubic yard. Rubble work, or the founda- 

 tion of the average house, is measured by the running perch. 



A ONE-ROOM RURAL SCHOOLHOUSE 



A running perch is a stone wall, or fence, 38 ft. long and 

 1 ft. high, regardless of the thickness. 



Brickwork is estimated by the 1000. 



112. Builders do not follow any uniform Tule in estimat- 

 ing the number of bricks required for a wall. A well-known 



