MEN
190
MEN
.422
.685
.790
.739
.764
.790
Tiling.
Pan-tiling, laid dry .per square.
pointed outside. — .
inside. — .
Plain tiling laid to a 4-inch gauge — .
to a 3^-inch gauge — .
to a 3-incli gauge ... — .
The above Constants all to be multiplied by the rate of■wages for a bricklayer and labourer per day.
Masons’ Woek.
Masons’ work is measured in the same manner as brick-layers’, so far as the superficial content is concerned.
The joints of the plane surface of an ashlar wall are mea-sured in breadth, according to the thickness of the ashlarwork, which is generally about six inches ; and the two sur-faces which are supposed to come in contact, or to becemented, both of the vertical and horizontal joints, areaccounted as only one surface, as in cornices ; and are sup-posed to be equivalent to that of the vertical facing of thewall after being rubbed smooth.
In brick walls, stone strings must correspond to the thick-ness of the bricks. Strings are generally bevelled, or wea-thered, upon the upper side, and grooved on the under side:the weathering is denominated sunk work, and the grooving,throating. Stone sills in common use are about 4f inchesthick, and 8 inches broad; they are weathered at the top,which reduces the front, or vertical face, to about 4 inches,and the horizontal surface at top to about 1^ inch on the in-side ; so that the part taken away is 6^ inches broad, andthree-quarters of an inch deep. Sills of windows, wheninserted in the wall, most commonly project about 2^ inches.The horizontal plane part, left on the inside of the top, thevertical part, or face, and the horizontal part on the lowerside without the wall, are denominated plain work ; thesloping part is the sunk work. Plain and sunk work aremeasured by the foot superficial; throating by the foot run ;and are thus entered in the measurer’s book :
Pi
adding < 4(2|
the sum is 8 inches for the breadth of the plain work in thesill, according to the dimensions stated.
Ft. In.
4 0
0 8
Plain work.
4 0
0 6|
Sunk work.
o/O 8
2 l0 4J
Plain to end.
4 0
Run of throating.
The sawing is not taken into account.
Cornices are measured by girting round the mouldings;that is, round all the vertical and under sides : this is deno-minated moulded work.
Thus, suppose a cornice to project one foot, and to girt twofeet, and to be 40 feet in length; then the dimensions areentered as below:
Ft.
40
2
Moulded work.
40
1
Sunk work at top.
To this must be added all the vertical joints. r .
All cylindrical work is measured in the girt, and the sface is accounted equivalent to plane work taken twice- ^ . flThus, suppose a cylinder girts 4 feet 9 inches, and .height 12 feet, then the dimensions are written as follow •
Ft.
In.
12
0
Super plain work.
4
9
Double measure.
Rough stone, or marble is measured by the foot cube ; , gfor workmanship, the superficies are measured before Jsunk, for plain work; one bed, and one upright joint, areaccounted plain work, as before stated ; then to take .plain sunk work, or circular, if any, and the straight u>ou ^work, or circular moulded work, if there be any such,taking the dimensions, particular care is required to di9guish these different species of work in the progressive f ^of preparing the stone. Throatings, and all narrow sink 1are measured by the foot running measure. In takin^.^dimensions of moulded work, the mouldings must be g irt 'a string. _ ar e
The contents of pavements, slabs, and chimney-p>ec es ’.^, 0found by superficial measure; as also stones under {inches thick are valued according to the same measure >those that are solid by the foot cube. j of])
The construction of rubble-walls is not known in k° n . J)9from the want of stone; but in many countries such erecare very general. _ coD -
The standard thickness of a rubble-wall is 2 feet; the ^tent is first found in feet and inches, then divided by 9,'reduces it to superficial yards ; and the yards are a 8 a,0 .jj c ialded by 36, which reduces it to roods, should the sU P eI jf iscontent in yards admit of such division : when the e ,above 2 feet, it is reduced to that standard by addin? gleighth, one - fourth, one - half, according as the add 1thickness may be 3 or 6 inches, or a foot.
Weight of Stone.
Purbeck stone,
14
cubic feet, weight one t° n '
16
ditto
ditto
Bath —
17
ditto
ditto
Yorkshire —
15
ditto
ditto
Granite
13-^
ditto
ditto
Marble
13
ditto
ditto
Purbeck paving
50 feet superficial
ditto
Ditto step 13 by 6-3,-
25
ieet run
ditto
Valuation of Labour. „ n ’S
Table of Constants for the different descriptions oiwork. s {or #
N.B.—The factor to be applied is the rate of w!l Smason per day. _ k .
Labour .—Squaring and laying new York or Par s<
021
Paving, per foot superficial .
If in courses, add ...
Labour on Portland or similar, per foot superficia •
N.B.—Sawing to be taken as half plain work. 1 ^0Plain work, to bond stones per foot superficialto beds and joints ditto
rubbed face ditto
ditto circular ditto
Sunk work, rubbed ditto
circular ditto
Moulded work, rubbed ditto
circular ditto