140 
MISCELLANEOUS TABLES. 
TABLE VII. 
By which may be determmed the depths of Rafters, Floor Joists, 
Bridging Joists, Binding Joists, &c. ; the breadth being 2^ 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 
27-00 
34-32 
42-87 
52-73 
64-00 
76-76 
91-12 
107-1 
125-0 
144^7 
bearing. 
DEPTH IN INCHES. 
nr 
2 
3 
4 
5 
•40 
•80 
1-20 
\-59 
1-99 
•43 
•86 
1-30 
1-73 
2^16 
•47 
•93 
1-40 
1- 86 
2- 33 
•50 
1-00 
1-50 
1- 99 
2- 49 
•53 
1-06 
1- 59 
2- 13 
2^66 
•56 
1-13 
1- 69 
2- 26 
2-82 
•60 
1-20 
1- 79 
2- 39 
2-99 
•63 
1-26 
1- 89 
2- 53 
3^16 
•66 
1-33 
1- 99 
2- 66 
3- 32 
•70 
1^40 
2^09 
2^79 
3-49 
6 
7 
8 
9 
10 
2-39 
2- 79 
3- 19 
3^59 
3-99 
2- 59 
3- 02 
3-46 
3- 89 
4- 32 
2- 79 
3- 26 
3- 72 
4- 19 
4-65 
2- 99 
3- 49 
3- 99 
4- 49 
4-98 
~3^ 
3- 72 
4^25 
4- 78 
5- 32 
3^39 
3-95 
4^52 
5-08 
5-65 
3- 59 
4- 19 
4- 78 
5- 38 
5-98 
"3^9 
4- 42 
5- 05 
5- 69 
6- 32 
3^99 
4^65 
5^32 
5- 98 
6- 65 
4- 88 
5- 58 
6- 28 
6-98 
11 
12 
13 
14 
15 
4- 39 
4^78 
6-18 
5- 58 
5-98 
4- 75 
5- 18 
5- 62 
6- 05 
6-48 
5-12 
5- 58 
6- 05 
6-51 
6-98 
5-48 
5- 98 
6^48 
6- 98 
7- 48 
5- 85 
6- 38 
6- 91 
7- 44 
7-97 
6-21 
6- 78 
7- 34 
7- 91 
8- 47 
6- 58 
7- 18 
7^77 
8- 37 
8-97 
6-95 
,7-58 
8-21 
8- 84 
9- 48 
7-31 
7- 97 
8- 64 
9- 30 
9-97 
TeT 
8- 37 
9- 07 
9-77 
10-47 
16 
17 
18 
19 
20 
6- 38 
6^78 
7- 18 
7^58 
7-97 
6- 91 
7- 34 
7- 77 
8- 21 
8-64 
7-44 
7- 91 
8- 37 
8- 84 
9- 30 
7- 97 
8- 47 
8- 97 
9- 47 
9-97 
8- 51 
9- 04 
9-57 
10-10 
10-63 
9-04 
9-60 
10-17 
10- 73 
11- 30 
9-57 
10-17 
10- 76 
[1-S6 
11- 96 
10-11 
10- 74 
11- 37 
12- 00 
12-63 
10- 63 
11- 30 
11- 96 
12- 63 
13- 29 
TT-Te" 
11 ^86 
12^56 
13-26 
13-95 
Multipliers to give the breaking weight of every Scantling in each column respectively. 
13-18 
12-17 
11-30 
10-55 
9-89 
9-30 
8-79 
8-32 
7-91 
7-53 
*t* If an imperial bushel of grain weigh 60 ibs., then one cubic toot of the same grain 
weighs 46-74 ibs., or -4173 cwts. 
If the grain upon a warehouse floor be 5 feet in depth, the weight upon the floor, allowing 
10 3 ibs. to the foot for the weight of the boards and joists, is 244 ibs., or 218 cwts. per 
superficial foot. If the joists be 13^ inches, and the beams 9 feet apart, from middle to mid- 
dle, the weight upon one foot in length of each joist is 244 x I'hI^" =274-5 ibs., and of 
each beam 9 x 2-18 = 19-62 cwts., or say, including the weight of the beam, 20 cwts. 
The scantlings to carry those weights may be found by the Miscellaneous Tables, as in 
the annexed Example. 
