========================+=============+============================= | Round barn, | Rectangular barn, | 60 feet in | 36 × 78-1/2 ft. | diameter +-------------+--------------- | | Plank frame | Mortise frame ------------------------+-------------+-------------+--------------- Lumber in barn, | $799.76 | $1023.27 | $1233.41 Material in foundation, | 86.89 | 105.90 | 105.90 Material in silo, | 159.01 | 295.26 | 295.26 ------------------------+-------------+-------------+--------------- Total cost of material | | | in barn, | =$1045.66= | =$1424.43= | =$1634.57= ========================+=============+=============+=============== Actual money saved, | | =$378.77= | =$588.91= ------------------------+-------------+-------------+--------------- Proportional cost, | =100%= | =136%= | =156%= ========================+=============+=============+=============== TABLE 2B. ========================+=============+============================= | Round barn, | Rectangular barn, | 90 feet in | 36 × 176-3/4 ft. | diameter +-------------+--------------- | | Plank frame | Mortise frame ------------------------+-------------+-------------+--------------- Lumber in barn, | $1628.48 | $2007.67 | $2497.56 Material in foundation, | 130.35 | 196.80 | 196.80 Material in silo, | 265.00 | 513.52 | 513.52 ------------------------+-------------+-------------+--------------- Total cost of material | | | in barn, | =$2023.83= | =$2717.99= | =$3207.88= ========================+=============+=============+=============== Actual money saved, | | =$694.16= | =$1184.05= ------------------------+-------------+-------------+--------------- Proportional cost, | =100%= | =134%= | =158%= ========================+=============+=============+=============== The square feet of floor space in the round barn 90 feet in diameter and rectangular barn 36 × 176-3/4 feet are the same, but the cubical content of the former is more than that of the latter. The increase in the lumber bill is 23 percent in the plank frame and 53 percent in the mortise frame barn. The round barn 90 feet in diameter contains 283 and the rectangular barn 426 lineal feet of wall. The rectangular barn has, therefore, 50 percent more lineal feet of outside barn wall, requiring a proportional increase in both paint and foundation.