Stone footings under porch foundations, 74' 6" × 2' 3" × 6" 83.8 Backing for ashlar and water-table, 79' 10" × 1' (average) × 3' 239.5 Rubble wall behind porches, 101' 4" × 1' 6" × 3' (approximately) 456.0 [8]Foundation walls, rear porch, 26' 10" × 1' 6" × 2' 6" 100.6 Footings, walls rear porch, 26' 10" × 2' 4" × 6" 31.3 Area walls, 13' 9" × 1' × 6' 6" 89.4 Stone footing for area walls, 13' 9" × 1' 9" × 6" 12.0 Piers, 1' 6" × 1' 6" × 2' 6" × 2 11.3 Pier footings, 2' × 2' × 6" × 4 8.0 Pier footings, 2' × 1' 9" × 6" × 2 3.5 --------- Total rubble masonry 3,209.2 [6] External measurements with no deduction for openings. [7] Although these are made continuous, to carry the base, or ground sill, independent piers, under the porch columns might be substituted, at a somewhat less cost. [8] Although these are made continuous, to carry the base, or ground sill, independent piers, under the porch columns might be substituted, at a somewhat less cost. _Cost_ The cost of the rubble masonry based on the analysis given in _Estimating and Calculating Quantities_, Part 1, using 1-3 Portland cement mortar, is $5.23 per perch. _Summary_ From the foregoing calculation, the quantity of rubble masonry is 3,209.2 cu. ft. Taking 25 cu. ft. to 1 perch, 3,209.2 ÷ 25 = 128.4 perches, which at $5.23 per perch makes the total cost of rubble masonry $671.53. ASHLAR[9] _Quantities_ SQUARE FEET Facing for cellar walls, 79' 10" × 2' 2" 173.0 Porch piers, 29' 6" × 1' 6" 43.9 ------- Total ashlar 216.9 [9] The walls between the base sill and the water-table are faced with ashlar, which extends around the main walls to the porches, and all porch piers are built of ashlar. _Cost_ The estimated cost of ashlar is based on the following analysis of the cost of 1 square foot of ashlar: Cost of stone, bluestone facing $.40 Hauling stone .03 Mortar .01 Labor, estimating 64 square feet per day of 8 hours, for two masons and one laborer: Two masons, at $3.20 per day .10 One laborer at $2 per day .03 ----- Cost per square foot $.57 _Summary_