ECONOMY OF THE ROUND DAIRY BARN 



actual cross section of 1^x5^ inches. If placed on edge and 

 supported at the ends, as a joist, the limit of safety for a load 

 evenly distributed is 642 pounds, while the limit of safety for a 

 load in the lineal direction of the same piece of timber 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 construc- 

 tion 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 or gable ends of a rectangular structure. If 



FIG. 5. IN cow STABLE, SHOWING snx> AND FEED AW,EY IN CENTER OF 

 BARN; STANCHIONS ON RIGHT, MILK SCALES AND RECORD SHEET ON LEFT. 



the lumber is properly placed in a round barn, much of it will per- 

 form 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 scaffolding is required 

 inside or out. These are points of economy in the round con- 

 struction. 



RECTANGULAR BARNS REQUIRE 34 TO 58 PERCENT MORE 



MATERIAL 



In order to compare the amount and cost of material in round 

 and rectangular barns, the following figures have been carefully 

 worked out by an expert barn builder. Two comparisons, based 



