=3.= The foundation walls are built of rubble masonry to the sill at
the grade line, and from this sill to the water-table they are built
of ashlar with rubble backing, except those portions behind porches
and steps, which are wholly rubble. The estimate for stonework also
includes the concrete for footings and cellar floor; the number of
cubic feet of concrete required for the footings will be found by
referring to the item Excavation for Wall Footings.
RUBBLE MASONRY
CUBIC
_Quantities_[6] FEET
Cellar walls, 181' 2" × 1' 6" × 6' 6" 1,766.4
Add for extra thickness over 1' 6":
5" × 6' 3" × 6' 6" 16.9
1' 2" × 10' 8" × 6' 6" 80.9
----- 97.8
[7]Foundation walls for front porch:
74' 6" × 1' 8" × 1' 9" 217.3
74' 6" × 1' 2" × 9" 65.2
------ 282.5
Foundation for steps:
2 piers, 1' 6" × 1' 8" × 2' 6" 12.5
2 piers, 2' x 1' 6" × 2' 6" 15.0
----- 27.5
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_
From the foregoing quantities, the ashlar amounts to 216.9 square feet,
which, at 57 cents per square foot, will make the total cost of ashlar
$123.63.
CUT STONE
_Quantities and Cost_
COST TOTAL
PER FOOT COST
Base, or ground sill, extending around
porches (except under stone steps) and
along exposed main walls, 172 ft., 5" × 11"
and 5" × 13" dressed and chamfered sandstone $1.00 $172.00
Water-table, extending around main walls,
181 ft. 2 in., 6" × 10" dressed and chamfered
sandstone .85 153.99
Lintel course, extending over brick walls,
125 ft., 6" × 10" dressed sandstone .85 106.25
Twelve dressed sandstone window sills, cut
with lug and drip, 55¾ ft., 5" × 8" .65 36.24
Cut-stone jambs and lintel for main door,
21½ ft., 10" × 12", sandstone 1.75 37.63
One front door sill, 5¾ ft., 6" × 10", sandstone 1.10 6.33
Coping on area walls, 9 ft., 3" × 16", sandstone .60 5.40
Front and side porch steps, 59 ft., 8" × 12",
dressed sandstone 1.25 73.75
Eight bluestone steps for cellar, outside entrance,
4' × 12" × 2" .35 11.20
Bluestone lintel for kitchen fireplace, 6' × 12" × 6" 1.20 7.20
Cut stone for main chimney 25.00
Cost to set cut stone, 20 per cent. 127.00
-------
Total cost of cut stone $761.99
CONCRETE FOOTINGS AND FLOOR
CUBIC
_Quantities_ YARD
Footings, as per Excavation for Wall Footings,
535.9 cu. ft. ÷ 27 19.8
SQUARE SQUARE
FEET YARD
Concrete floor:
Area of cellar excavation 1,740.0
Deduct area of footings 643.3
-------
1,096.7
Add for 6-inch strip over inner projection
of wall footings, 165' × 6" 82.5
Add for projection on both sides of interior
walls, 126' × 6" 63.0
Add for projection over chimney footing,
33' × 6" 16.5
-------
Total area of concrete floor 1,258.7 = 139.9
_Cost_
The estimate for concrete footings is based on the analyses of costs
given in _Estimating and Calculating Quantities_, Part 1, and is $5.10
per cubic yard for a 1-3-5 mixture.
The estimate for the concrete floor is arrived at as follows:
The concrete will be a 1-3-6 mixture. According to _Estimating and
Calculating Quantities_, Part 1, this mixture costs $4.92 per cubic
yard. According to the same section, 25 cents must be added to this
cost for extra labor, bringing the total up to $5.17 per cubic yard.
If the concrete floor is 4 inches thick, the cost per square yard will
be ⁴/₃₆ × 5.17 = 57 cents, approximately. The top coat, according
to _Estimating and Calculating Quantities_, Part 1, is 40 cents.
Therefore, the total cost of the concrete floor per square yard is 57 +
40 = 97 cents.
_Summary_
Footing concrete, as per foregoing figures,
19.8 cu. yd. at $5.10 per cubic yard $100.98
Concrete floor, 139.9 sq. yd.
at 97 cents per square yard 135.70
-------
Total cost of concrete $236.68
_Recapitulation of Cost of Stonework_
Rubble masonry $ 671.53
Ashlar masonry 123.63
Cut stone 761.99
Concrete footings and floor 236.68
---------
Total cost of stonework $1,793.83