MISCELLANEOUS TABLES. 
143 
TABLE VIII. Continued. 
By which may be determined the depths of Rafters, Floor Joists, 
Bridging Joists, Binding Joists, &c.; the breadth being 2f 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 
in feet, 
clear 
beariug 
190-1 
216-0 
244-1 
274-6 
307-5 
343-0 
381-0 
421-8 
465-4 
512-0 
depth in inches. 
J 
2 
3 
4 
5 
•74 
1- 48 
2- 22 
2- 96 
3- 70 
•77 
1- 55 
2- 32 
309 
386 
•80 
1- 61 
2- 41 
3- 22 
4- 02 
•84 
1- 67 
2- 51 
3- 35 
4- 18 
-87 
1- 74 
2- 61 
3- 48 
4- 35 
-90 
1- 80 
2- 70 
3- 61 
4- 51 
•93 
1- 87 
2- 80 
3- 73 
4- 67 
•97 
\'9Z 
2- 90 
3- 86 
4- 83 
1-00 
9-00 
3^99 
4-99 
1-03 
3- 09 
4- 12 
5- 15 
6 
7 
8 
9 
*10 
4- 44 
5- 18 
5- 92 
6- 66 
7- 40 
4- 64 
5- 41 
6- 18 
6- 95 
7- 73 
5- 63 
6- 44 
7- 24 
8- 05 
8- 85 
9- 66 
10- 46 
11- 27 
12- 07 
5^02 
5- 86 
6- 70 
7- 53 
8- 37 
9- 21 
10-04 
10- 88 
11- 72 
12- 55 
~5^ 
6-08 
6- 95 
7- 82 
8- 69 
9- 56 
10- 43 
11- 30 
12- 17 
13- 04 
5- 41 
6- 31 
7- 21 
8- 11 
9- 01 
5- 60 
6- 53 
7- 47 
8- 40 
9- 33 
5- 79 
6- 76 
7- 73 
8- 69 
9- 66 
5^99 
6-98 
7^98 
8-98 
9^98 
6- 18 
7- 21 
8^24 
9-27 
10-30 
11 
12 
13 
14 
15 
8-14 
8- 88 
9- 62 
10- 36 
11- 11 
8- 50 
9- 27 
10-04 
10- 82 
11- 59 
9-91 
10- 82 
11- 72 
12- 62 
13- 52 
10- 27 
11- 20 
12- 14 
13- 07 
14- 00 
10- 62 
11- 59 
12- 55 
13- 52 
14- 48 
10- 98 
11- 97 
12- 97 
13- 97 
14- 97 
11- 33 
12- 36 
13- 39 
14- 42 
15- 45 
16 
17 
18 
19 
20 
11- 85 
12- 59 
13- 33 
14- 07 
14-81 
12- 36 
13- 13 
13- 91 
14- 68 
15- 45 
12- 88 
13- 68 
14- 48 
15- 29 
16- 09 
13- 39 
14- 23 
15- 06 
15- 90 
16- 74 
13-91 
14.77 
15- 64 
16- 51 
14- 42 
15- 32 
16- 22 
14- 94 
15- 87 
16- 80 
15- 45 
16- 42 
15- 97 
16- 97 
16-48 
Multipliers to give the breaking weight of every Scantling in each column respectively. 
7-10 
6-80 
6-53 
6-28 
6-05 
5-83 
5-63 
5-44 
5-27 
5-10 
* Example.— The greatest weight upon a joist for a warehouse floor being 465-4 lbs to 
.the foot, a Red Pine joist 10 feet long, 9-98 in. by 2| in., uniformly loaded with that weight 
deflects m the middle ^ or i of an inch; with the same weight, 9 98 in. by 3 in. deflects 
^ of an inch. 
The breaking weight of a Red Pine joist 10 feet long 9-98 in. by 2f in., is 5-27 times the 
tabular w-eis;ht. 
