88 SECOND SERIES — TABLES OF WEIGHTS. 
TABLE XV. Continued. 
SCANTLINGS, 15 in. and 15^ inches Deep. 
The Weights in this table are — 
One-eighth of the breaking weight of Red Pine, uniformly loaded ; or 
One-fourth of the same, when suspended from the middle. 
Size op 
Scantlings, 
in inches. 
LENGTH IN FEET, 
CLEAR 
BEARING. 
17 
18 
19 
20 
21 
22 
23 
24 
Depth. Breadth. 
WEIGHT IN CWTS. 
15 X 2 
15 X 2k 
15 X 3 
15 X 3 J 
15 X 4 
26-47 
33-08 
39-70 
46-32 
52-94 
25-00 
31-25 
37-50 
43-75 
50-00 
23-68 
29-60 
35-52 
41-44 
47-36 
22-50 
28-12 
33-75 
39-37 
45-00 
21^42 
26-78 
32-14 
37-50 
20-45 
25-56 
30-68 
35-79 
19-56 
24-46 
29-34 
34-23 
Oo 1 O 
18-75 
23-43 
28-12 
32-81 
O 4 0\J 
15X Ah 
15 X 5 
15 X 5i 
15 X 6 
15X 61 
59-55 
66-17 
72-79 
79-41 
86-02 
56-25 
62-50 
68-75 
75-00 
81-25 
53-28 
59-21 
65-13 
71-05 
76-97 
50-62 
56-25 
61-87 
67-50 
73-12 
48-21 
53-57 
58-92 
64-28 
69-64 
46-02 
51-13 
56-25 
61-36 
66-47 
44-02 
48-91 
53-80 
58-69 
63-58 
"42-18 
46-87 
51-56 
56-25 
60-93 
J5X 7 
15 X 8 
15 X 9 
15X10 
*15X11 
92-64 
105-88 
119-11 
132-35 
145-58 
87-50 
100-00 
112-50 
125-00 
137-50 
82-89 
94-73 
106-57 
1 18-42 
130-26 
78-75 
90-00 
101-25 
112-50 
123-75 
75-00 
85-71 
96-42 
107-14 
117-85 
71-59 
81-81 
92-04 
102-27 
112-50 
68-47 
78-26 
88-04 
97-82 
107^60 
65-62 
75-00 
84-37 
93-75 
10312 
15X12 
15X13 
15X14 
15X15 
15X15^ 
158-82 
172-05 
185-29 
198-52 
•205-14 
150-00 
162-50 
175-00 
187-50 
193-75 
142-10 
153-94 
165-78 
177-63 
183-55 
135-00 
146-25 
157-50 
168-75 
174-37 
128-57 
139-28 
150-00 
160-71 
166-07 
122-72 
132-95 
143-18 
153-40 
158-52 
117^39 
127-17 
136-95 
146-73 
151-63 
112-50 
121-87 
131-25 
140-62 
145-31 
Deflection in inches of Red Pine 15 inches deep, loaded with the weights in this tahle. 
Weight uniform- ) 
ly loaded. | 
-317 
-355 
-396 
•438 
-483 
-530 
-580 
•631 
Wt. suspended ) 
fromlhemiddle. ) 
-507 
-568 
•633 
•701 
-773 
-848 
-927 
rolo 
*#* For Scantlings 15^^ inches deep, multiply the weights in this table 
by 96^=1-0677, and the deflections by |f^=-968.-t- 
* Example 1. — Red Pine 15 in. by 11 in., 23 feet long, -with 107'60 cwts. uniformly loaded, 
(one-eighth the breaking weight) deflects "580 of an inch ; and with 107-60 cwts. suspended 
from the middle (one-fourth the breaking weight) the deflection is -927 of an inch. 
f* Example 2.— Red Pine 15^ in. by 11 in., 23 feet long, with 107-6 x 1-0677 = 114-89 
cwts. uniformly loaded (one-eighth the breaking weight) deflects -58 x -968 = -561 of an 
inch; and with 114-89 cwts. suspended from the middle (one-fourth the breaking weight) 
the deflection is '927 x -968 = -897 of an inch. 
