FARM BUILDINGS AND EQUIPMENT. 



215 



ported at the ends, as a joist, the 

 limit of safety for a load evenly dis- 

 tributed is 642 pounds, while the 

 limit of safety for a load in the 

 lineal direction of the same piece of 

 lumber is 12,800 pounds, or twenty 

 times as great. 



All exposed surfaces of a round 

 barn are circular, as both the sides 

 and roof are arched, which is the 

 strongest form of construction to 

 resist wind pressure; besides, the 

 wind, in striking it glances off and 

 can get no direct hold on the walls or 

 roof, as it can on the flat sides (ft 

 gable ends of a rectangular struc- 

 ture. If the lumber is properly 

 placed in a round barn, much of it 

 will perform two or more functions. 

 Every row of siding boards running 

 around the building serves also as a 

 brace, and the same is true of the 

 roof boards and the arched rafters. 

 If the siding is put on vertically and 

 the roof built dome shaped, no scaf- 

 folding is required inside or out. 

 These are points of economy in the 

 round construction. 



Rectangular Barns Require 34 to 58 

 Per Cent. More Material. 



In order to compare the amount 

 and cost of material in round and 

 rectangular barns, the following fig- 

 ures have been carefully worked out 



by an expert barn builder. Two com- 

 parisons, uased on wood construction 

 throughout, are made, in which round 

 barns 60 feet and 90 feet in diameter 

 are compared with both plant and 

 mortise frame rectangular barns con- 

 taining the same number of square 

 feet of floor space, respectively. 

 Since the most practical width of a 

 rectangular dairy barn is 36 feet, its 

 length will depend upon the number 

 of square feet required in the bam. 



Figures 6 to 9 are side and end 

 views, showing the detail construc- 

 tion and size of the timbers of the 

 plant frame and mortise frame barns 

 here figured. Th^ total number of 

 feet of each kind of lumber required 

 is given in Tables la and lb. Since 

 the proportion of the different kinds 

 of lumber and shingles varied for the 

 different barns, to draw an exact com- 

 parison it was necessary to base it 

 upon the money value, and for this 

 purpose the total cost of lumber has 

 been figured in each case. The lum- 

 ber values used throughout are the 

 best average prices that could be ob- 

 tained. As the same prices are used 

 for the material of all of the bams, 

 the comparisons of cost are correct, 

 although these exact prices will not 

 hold for all localities and all times. 



Since a silo cannot be economically 

 built inside of a rectangular bam, the 



How to Put Up Steel Stalls in Stable. Note the Length of Stall, Drop and 



Feed Box. 



