138 
MISCELLANEOUS TABLES. 
TABLE VI. 
By which may be determined the depths of Ceiling Joists, Rafters, 
Floor Joists, Bridging Joists, Binding Joists, &c.; the breadth 
being 2i inches, and the deflection ^ of an inch to the foot, when 
uniformly loaded with the weights in this table. 
WEIGHT IN POUNDS UPON EACH 
FOOT 
IN LENGTH. 
Length 
ill feet, 
cleat 
20-79 
27-00 
34-32 
42-87 
52-73 
64-00 
76-76 
9M2 
107^1 
125-0 
bearing. 
DEPTH IN INCHES. 
1 
2 
3 
4 
5 
-38 
•76 
1-14 
1-51 
1-89 
•41 
-83 
P24 
1-65 
207 
•45 
-89 
1-34 
1- 79 
2- 24 
•48 
•96 
P45 
1- 93 
2- 41 
-52 
1-03 
1- 55 
2- 07 
2-58 
•55 
MO 
1- 65 
2- 20 
2-75 
•59 
117 
r76 
2-34 
2 93 
•62 
1-24 
1- 86 
2- 48 
3^10 
•65 
1-31 
1- 96 
2- 62 
3- 27 
-69 
1- 38 
2- 07 
2- 75 
3- 44 
6 
7 
8 
9 
10 
2-27 
2- 65 
3- 03 
3-41 
3-79 
2-48 
2- 89 
3- 30 
3- 72 
4- 13 
313 
3- 58 
4- 03 
4-47 
2- 89 
3- 37 
3- 86 
4- 34 
4-82 
3-10 
3- 61 
4- 13 
4- 65 
5- 16 
3-30 
3- 86 
4- 41 
4- 96 
5- 51 
3- 51 
4^10 
4- 68 
5- 27 
5-85 
3- 72 
4- 34 
4- 96 
5- 58 
6- 20 
3- 92 
4- 58 
5- 23 
5- 89 
6- 54 
413 
4- 82 
5- 51 
6- 20 
6-88 
11 
12 
13 
14 
15 
4-16 
4-54 
4- 92 
5- 30 
5-68 
4-54 
4- 96 
5- 37 
5- 78 
6- 20 
4- 92 
5- 37 
5- 82 
6- 26 
6-71 
5-30 
5- 78 
6- 26 
6- 75 
7- 23 
6-20 
6- 71 
7- 23 
7-74 
6-06 
6- 61 
7- 16 
7- 71 
8- 26 
6- 44 
7- 02 
7- 61 
8- 19 
8-78 
"6^ 
7- 43 
8- 05 
8- 67 
9- 29 
7- 19 
7^85 
8- 50 
9- 16 
9-81 
7- 57 
8- 26 
8- 95 
9- 64 
10-33 
16 
17 
18 
19 
20 
6-06 
6-44 
6- 82 
7- 19 
7-57 
6- 61 
7- 02 
7-43 
7- 85 
8- 26 
7-16 
7- 61 
8- 05 
8-50 
8-95 
7- 71 
8- 19 
8- 67 
9- 16 
9-64 
8-26 
8- 78 
9- 29 
9-81 
10-33 
8- 81 
9- 36 
9-91 
10- 46 
11- 01 
9-36 
9-95 
10- 53 
11- 12 
11-70 
9-91 
10- 53 
11- 15 
11- 77 
12- 39 
10- 46 
11- 12 
12- 43 
13- 08 
11-01 
11- 70 
12- 39 
13- 08 
13-77 
Multipliers to give the breaking weight of every Scantling in each Column respectively. 
13-89 
12-73 
11-75 
10-91 
10-19 
9-55 
8-99 
8-49 
8-04 
7-64 
The weight of one cubic foot of water being 62-5 flbs., the pressure upon a floor, from 
a cistern 4 feet deep, lined with lead, and filled with water, may be estimated, without 
the weight of a ceiling, at 260 lbs. per foot superficial. If the joists to carry the same 
be 14 inches apart from middle to middle, the weight upon one foot in length of each 
joist, is 260x 1'h2" = 303 fts.; and the scantlings for various deflections may be 
found by these tables, as in the next example. 
