How to Estimate Brickwork for a Residence

HOW TO ESTIMATE BRICKWORK FOR A RESIDENCE Figs. 62 to 67 show elevations and plans of a substantial, modern brick dwelling-house of 7 rooms, with bath, reception hall, and basement. We shall now endeavor to show the method of procedure to be followed in estimating the number of bricks needed for this house.

Two methods of figuring will be given ----first, the wall measure, or number of bricks needed on the basis spoken of on page 51, in which connection Table XI is used; and second, the kiln count, or actual number of 'bricks bought and used, figured on a basis of 17 bricks to the cubic foot when laid in wall. If the rule of 500 to the cubic yard, spoken of on page 52 is used, a little larger number of bricks will be needed. If pressed brick is figured, with thin joints in surface work, 17 bricks to the cubic foot will be a little low. The rule of 580 to the cubic yard, or 20 to the cubic foot, will be nearer.

We shall divide the work into parts: 1. All brickwork below top of the firstfloor joists ; 2. Brickwork above top of first-floor joists ; 3. Chimneys ; 4. Deduct all openings of over 2 square feet and all stone work.

Brickwork below Top of First-Floor Joists Footing—The length around the foundation wall is about 121 feet. Thickness of footings, 8 inches, or 2/3 of a foot; width, 1 foot 10 inches, or 22 inches. Then we have: This will be figured under the 20-inch column in Table XI, since it is 5 bricks thick, with inch allowed for each of 4 joints.

From table for 20.inch wall, SO sq. ft. = 0,000 bricks 1 sq. ft.= 38 bricks For footing, 3.038 bricks Basement Wall—Wall is 13 inches thick, and feet high to top of firstfloor joists. Length around wall is 121 feet.

121 X 71/2 sq. ft. of wall surface in basement. loom Table XI, for 12-inch wall, 900 sq. ft. = 20220 bricks S sq. ft.= ISO bricks Total for basement, 20,430 bricks Deducting the following window space, allowing 8 inches additional width to windows and 10 inehes additional depth, for size of frame opening: 1 space 36" x 38" = 1,368 sq. in.

1 space 54" x 38" = 2,052 sq. in 2 spaces 32" x 38" = 2,432 sq. in 1 space 44" x 38" = 1,672 sq. in 1 space 40"x 38" = 1,520 sq. in.

Total, 9,044 sq. in.

Dividing this by 144, the number of square inches in a square foot: which from the table is equivalent to 1,418 bricks.

Also, deducting for basement door, 3 ft. x 7 ft =21 ft., and 21 square feet of wall surface of inch wall, from the table, is equivalent to 473 bricks.

Total number of bricks to deduct is 1,418 + 473 = 1,891.

Thus we have: 20.430 —1.891 = 18,939 bricks needed in basement wall.

Area-Way Walls—Two walls 111/2 feet long by 6 feet high and 13 inches thick.

2xliv,,x6— 138 ft. of well surface.

From table for 12-inch walls, lOn ft.= 2.250 bricks 30 ft= 675 bricks 8 ft.= 180 bricks Total, 3,105 hricks in area way walls.

Piers—The following piers are called for by the plans: 2 1G-ineh brick piers at front, 7 ft. 2 1G-inch brick piers at front, 4 ft. 2 13-ineh brick piers in cellar, 7 1-3 ft. 1 1G-inch brick pier at rear, 4 ft. 1 8812-ineh brick pier at rear, 4 ft. Figuring these as walls either 12 or 16 inches thick as the case may be, we have: 7' X X 2= 19 ft of wall surface in 2 piers. 16 inches thick.

From table for 16-inch wall, 10 ft. = 300 bricks 9 ft.= 270 bricks Total, 570 - bricks Also, 4' X 11/2' X 2 =11 ft. of wall surface 2 piers, 16 inches thick.

From table for 16.inch wall, • 10 ft.= 300 bricks 1 ft.= 30 bricks Total, 330 - bricks Also, X x 2=15 ft. of wall surface in 2 piers, 12 inches thick.

Total, 334 bricks Also, • 4' X 5', sq. ft. (nearly) of wall surface 16 inches thick.

From table for 11-inch wall, 5 sq. ft.= 150 bricks sq. ft.= 15 bricks Total, 165 bricks For the 8x12-inch pier, figure it as a wall 12 inches thick, 4 feet high, and 2/3 of a foot long: 4' x 2-3' =3 sq. ft. (nearly) of wall surface 12 inches thick.