MISCELLANEOUS TABLES. 
139 
TABLE VI. Continued. 
By which may be determined the depths of Ceihng 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 
in feet, 
clear ; 
bearing. 
144-7 
166-3 
190-1 
216^0 
244-1 
274-6 
307-5 
3430 
381-0 
421-8 
DEPTH IN INCHES. 
1 
2 
3 
4 
5 
•72 
1- 45 
2- 17 
2- 89 
3- 61 
•76 
1- 51 
2- 27 
3- 03 
3-79 
•79 
1-58 
2 37 
3^17 
3-96 
•83 
1- 65 
2- 48 
3- 30 
4- 13 
-86 
1- 72 
2- 58 
3^44 
4-30 
•89 
1-79 
2^68 
3^58 
4-47 
•93 
1- 86 
2- 79 
3- 72 
4- 65 
•96 
1- 93 
2- 89 
3- 86 
4- 82 
1-00 
2^00 
2^99 
3- 99 
4- 99 
1-03 
2^07 
3- 10 
4- 13 
5- 1& 
*6 
7 
8 
9 
10 
4- 34 
5- 06 
5- 78 
6- 51 
7- 23 
4- 54 
5- 30 
6- 06 
6- 82 
7- 57 
4- 75 
5- 54 
6- 33 
7^13 
7- 92 
4-96 
5^78 
6- 61 
7- 43 
8- 26 
5^16 
6-02 
6- 88 
7- 74 
8- 61 
5^37 
6^26 
7^16 
8^05 
8^95 
5- 58 
6- 51 
7- 43 
8- 36 
9- 29 
5- 78 
6- 75 
7- 71 
8- 67 
9- 64 
5- 99 
6- 99 
7- 99 
8- 98 
9- 98 
6^20 
723 
8-26 
9^29 
10-33 
11 
12 
13 
14 
15 
7- 95 
8- 67 
9- 40 
10-12 
10-84 
8- 33 
9- 09 
9-84 
10- 60 
11- 36 
8- 71 
9- 50 
10- 29 
11- 08 
11-88 
9-09 
9-91 
10- 74 
11- 57 
12- 39 
9-47 
10^33 
1M9 
12^05 
12-91 
9-84 
10^74 
lb63 
1253 
13^42 
10- 22 
11- 15 
12- 08 
13- 01 
13-94 
10- 60 
11- 57 
12- 53 
13- 49 
14- 46 
10- 98 
11- 98 
12- 98 
13- 97 
14- 97 
11- 36 
12- 39 
13- 42 
14- 46 
15- 49 
16 
17 
18 
19 
20 
11- 57 
12- 29 
1301 
13- 73 
14- 46 
12-12 
12- 87 
13- 63 
14- 39 
15- 14 
12- 67 
13- 46 
14- 25 
15- 04 
15-83 
13- 22 
14- 04 
14- 87 
15- 70 
13- 77 
14- 63 
15- 49 
14^32 
15-21 
14- 87 
15- 80 
15-42 
15-97 
Multipliers to give the breaking weight of every Scantling in each column respectively. 
7-27 
6-94 
6^64 
6^36 
6-11 
5-87 
5-66 
5-45 
527 
5-09 
* Example. — A joist 6 feet long 5'58 in by 2i in., with 307'5 fbs. weight to the foot, 
uniformly loaded, deflects in the middle of an inch ; with the same weight, 5-58 in. by 
2|. in., deflects _6_ of an inch; 5'58 in. by 2| in., deflects -^^ of an inch; and 5-58 in. by 
3 in. deflects -^-^ of an inch. 
If the joists to carry the cistern (p. 138) be 16 inches apart from middle to middle, the 
weight upon one foot in length of each joist is 260 x l'/;4" = 346-6 lbs. The scantlings are 
found by the next column, viz. 5-78 in. by 2i in. ; 5-78 in. by 2i in. ; &c, &c. 
