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The dimensions of a building may be taken by measuring half round on the outside and half round it on the inside; the sum of these two gives the compass of the wall, to be multiplied by the height, for the content of the materials.

Chimneys are commonly measured as if they were solid, deducting only the vacuity from the hearth to the mantle, on account of the trouble of them. All windows, doors, &c, are to be deducted out of the contents of the walls in which they are placed.

EXAMPLEŠ.

EXAM. 1. How many yards and rods of standard brickwork are in a wall whose length or compass is 57 feet 3 inches, and height 24 feet 6 inches; the wall being 2 bricks or 5 half bricks thick? Ans. 8 rods, 17 yards.

EXAM. 2. Required the content of a wall 62 feet 6 inches long, and 14 feet 8 inches high, and 21⁄2 bricks thick? Ans. 169-753 yards. EXAM. 3. A triangular gable is raised 17 feet high, on an end wall whose length is 24 feet 9 inches, the thickness being 2 bricks required the reduced content?

Ans. 32.08 yards.

EXAM. 4. The end wall of a house is 28 feet 10 inches long, and 55 feet 8 inches high, to the eaves; 20 feet high is 24 bricks thick, other 20 feet high is 2 bricks thick, and the remaining 15 feet 8 inches is 1 brick thick; above which is a triangular gable, of 1 brick thick, which rises 42 courses of bricks, of which every 4 courses make a foot. What is the whole content in standard measure? Ans. 253-626 yards.

IV. MASONS' WORK.

To Masonry belong all sorts of stone-work; and the measure made use of is a foot, either superficial or solid.

Walls, columns, blocks of stone or marble, &c, are measured by the cubic foot; and pavements, slabs, chimneypieces, &c, by the superficial or square foot.

Cubic or solid measure is used for the materials, and square measure for the workmanship.

In the solid measure, the true length, breadth, and thickness are taken and multiplied continually together. In the superficial, there must be taken the length and breadth of every part of the projection which is seen without the general upright face of the building.

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EXAMPLES

EXAMPLES.

EXAM. I. Required the solid content of a wall, 53 feet 6 inches long, 12 feet 3 inches high, and 2 feet thick? Ans. 1310 feet. EXAM. 2. What is the solid content of a wall, the length being 24 feet 3 inches, height 10 feet 9 inches, and 2 feet thick? Ans. 521.375 feet. EXAM. 3. Required the value of a marble slab, at 8s. per foot; the length being 5 feet 7 inches, and breadth 1 foot 10 inches? Ans. 41. 1s. 101d

EXAM. 4. In a chimney piece, suppose the length of the mantle and slab, each 4 feet 6 inches

breadth of both together

length of each jamb

breadth of both together

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Required the superficial content?

Ans. 21 feet 10 inches.

V. CARPENTERS AND JOINERS' WORK. To this branch belongs all the wood-work of a house, such as flooring, partitioning, roofing, &c.

Large and plain articles are usually measured by the square foot or yard, &c; but enriched mouldings, and some other articles, are often estimated by running or lineal measure; and some things are rated by the piece.

In measuring of Joists, take the dimensions of one joist, and multiply its content by the number of them; considering that each end is let into the wall about of the thickness, as it ought to be.

Partitions are measured from wall to wall for one dimension, and from floor to floor, as far as they extend, for the other.

The measure of Centering for Cellars is found by making string pass over the surface of the arch for the breadth, and taking the length of the cellar for the length: but in groin centering, it is usual to allow double measure, on account of their extraordinary trouble.

In Roofing, the dimensions, as to length, breadth, and depth, are taken as in flooring joists, and the contents computed the same way.

In Floor-boarding, take the length of the room for one dimension, and the breadth for the other, to multiply together for the content.

For Stair-cases, take the breadth of all the steps, by making

a line ply close over them, from the top to the bottom, and multiply the length of this line by the length of a step, for the whole area.--By the length of a step is meant the length of the front and the returns at the two ends; and by the breadth is to be understood the girts of its two outer surfaces, or the tread and riser.

For the Balustrade, take the whole length of the upper part of the hand-rail, and girt over its end till it meet the top of the newel-post, for the one dimension; and twice the length of the baluster on the landing, with the girt of the handrail, for the other dimension.

For Wainscoting, take the compass of the room for the one dimension; and the height from the floor to the ceiling, making the string ply close into all the mouldings, for the other.

For Doors, take the height and the breadth, to multiply them together for the area.-If the door be panneled on both sides, take double its measure for the workmanship; but if one side only be panneled, take the area and its half for the workmanship. For the Surrounding Architrave, girt it about the uttermost part for its length; and measure over it, as far as it can be seen when the door is open, for the breadth.

Window-shutters, Bases, &c, are measured in like manner. In measuring of Joiners' work, the string is made to ply close into all mouldings, and to every part of the work over which it passes,

EXAMPLES.

EXAM. 1. Required the content of a floor, 48 feet 6 inches long, and 24 feet 3 inches broad? Ans. 11 sq. 76} feet. EXAM. 2. A floor being 36 feet 3 inches long, and 16 feet 6 inches broad, how many squares are in it?

Ans. 5 sq. 98 feet. EXAM. 3. How many squares are there in 173 feet 10 inches in length, and 10 feet 7 inches height, of partitioning? Ans. 18.3973 squares.

EXAM. 4. What cost the roofing of a house at 10s. 6d. a square; the length within the walls being 52 feet 8 inches, and the breadth 30 feet 6 inches; reckoning the roof of the flat? Ans. 12. 12s. 11ąd.

EXAM. 5. To how much, at 6s. per square yard, amounts the wainscoting of a room; the height, taking in the cornice and mouldings, being 12 feet 6 inches, and the whole com, pass 83 feet 8 inches; also the three window-shutters are each 7 feet 8 inches by 3 feet 6 inches, and the door 7 feet by 3 feet 6 inches; the doors and shutters, being worked on both sides, are reckoned work and half work?

Ans. 361. 12. 21d.

VI. SLATERS' AND TILERS' WORK.

In these articles, the content of a roof is found by mul tiplying the length of the ridge by the girt over from eaves to eaves; making allowance in this girt for the double row of slates at the bottom, or for how much one row of slates or tiles is laid over another.

When the roof is of a true pitch, that is, forming a right angle at top; then the breadth of the building, with its half added, is the girt over both sides nearly.

In angles formed in a roof, running from the ridge to the eaves, when the angle bends inwards, it is called a valley; but when outwards, it is called a hip.

Deductions are made for chimney shafts or window holes.

EXAMPLES.

EXAM. 1. Required the content of a slated roof, the length being 45 feet 9 inches, and the whole girt 34 feet 3 inches? Ans. 174

yards.

EXAM. 2. To how much amounts the tiling of a house, at 25s. 6d. per square; the length being 43 feet 10 inches, and the breadth on the flat 27 feet 5 inches; also the eaves projecting 16 inches on each side, and the roof of a true pitch? Ans. 241.9s. 54d.

VII. PLASTERERS' WORK,

PLASTERERS' work is of two kinds; namely, ceiling, which is plastering on laths; and rendering, which is plastering on walls which are measured separately.

The

The contents are estimated either by the foot or the yard, or the square, of 100 feet. Inriched mouldings, &c, are rated by running or lineal measure.

Deductions are made for chimneys, doors, windows, &c.

EXAMPLES.

EXAM. 1. How many yards contains the ceiling which is 43 feet 3 inches long, and 25 feet 6 inches broad?

Ans. 1224.

EXAM. 2. To how much amounts the ceiling of a room, at 10d. per yard; the length being 21 feet 8 inches, and the breadth 14 feet 10 inches? Ans. 1. 95. 8d.

EXAM. 3. The length of a room is 18 feet 6 inches, the breadth 12 feet 3 inches, and height 10 feet 6 inches; to how much amounts the ceiling and rendering, the former at 8d. and the latter at 3d. per yard; allowing for the door of 7 feet by 3 feet 8, and a fire-place of 5 feet square?

Ans. 1. 13s. 34d.

EXAM, 4. Required the quantity of plastering in a room, the length being 14 feet 5 inches, breadth 13 feet 2 inches, and height 9 feet 3 inches to the under side of the cornice, which girts 8 inches, and projects 5 inches from the wall on the upper part next the ceiling, deducting only for a door 7 feet by 4?

Ans. 53 yards 5 feet 3 inches of rendering

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of ceiling

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of cornice.

VIII. PAINTERS' WORK.

PAINTERS' work is computed in square yards. Every part is measured where the colour lies; and the measuring line is forced into all the mouldings and corners.

Windows are done at so much a piece. And it is usual to allow double measure for carved mouldings, &c.

EXAMPLES.

EXAM. 1. How many yards of painting which is 65 feet 6 inches in compass, and

high?

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EXAM. 2. The length of a room being 29 feet, its breadth

14 feet

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