FIRST SERIES TABLES OF SCANTLINGS. 
5 
TABLE I.— Red Pine. 
Weight upon each foot in length, 1 lb. 
Deflection in the middle for each foot in length, ^ of an inch. 
Weight uniformly loaded. 
W lbs, 
P = 40 
w 
Weight suspended from the middle, ~ = 25 
Length 
BREADTH IN 
INCHES. 
Weight 
in feet, 
H 
2 
2i 
2i 
3 
3^ 
uniformly 
lo&ded, 
bearing. 
DEPTH IN INCHES. 
in lbs. 
1 
•16 
•15 
•14 
•14 
•13 
•13 
•12 
"Too 
2 
•32 
•30 
•29 
•28 
•27 
•25 
•24 
200 
*3 
•47 
•45 
•43 
•41 
•40 
•38 
•36 
3-00 
4 
•63 
•60 
•57 
•55 
•53 
•50 
•48 
4-00 
5 
•79 
•75 
•72 
•69 
•66 
•63 
•59 
5^00 
~T 
•90 
•86 
•83 
•80 
•75 
•71 
6-00 
7 
110 
\-05 
1-00 
•96 
•93 
•88 
•83 
7-00 
8 
1^26 
1-20 
115 
MO 
1-06 
l-OO 
•95 
800 
9 
1-42 
1^35 
1-29 
1^24 
1^20 
M3 
1-07 
900 
10 
1-58 
1-50 
143 
1-38 
1-33 
1-25 
119 
10-00 
TT 
1-73 
1-65 
1-57 
1^51 
1-46 
1-38 
1^ 
Th)0 
12 
1-89 
1-80 
1-72 
1-65 
1-59 
1-50 
1-43 
1200 
13 
2-05 
\-9o 
1-86 
1-79 
1-73 
\-63 
154 
13^00 
14 
2^21 
2-10 
200 
1-93 
1-86 
1-75 
1-66 
14^00 
15 
2-36 
2^25 
215 
2^07 
1-99 
1-88 
1-78 
15 00 
Weight 
suspended 
from the 
middle, 
in lbs. 
•62 
1-25 
1- 87 
2- 50 
312 
3^75 
4- 37 
5- 00 
5^62 
6^25 
~6W 
7- 50 
8- 12 
8- 75 
9- 37 
Deflectioa 
ill the 
middle, in 
parts of 
an inch. 
4^ 
3 
4^ 
4. 
5 
6 
7 
4 o 
8 
9 
I o 
40 
4^ 
I 2 
I 3 
40 
1 4 
4S 
1 5 
4^ 
Multipliers to give the breaking weight of every Scantling in each column respectively. 
I33^37j35^ i2i36^73;3»^2 1 |39^56l42^04 
|-26^69'28^10 29^38 30^57 31-65I33-63 
44-25 
35-40 
Uniformly loaded. 
Suspended frotn the middle. 
* Example. — Red Pine 3 feet long, -4? in. hy 1^ in , or -45 by If, or -43 by 2, or 
•41 by 2i, or -40 by 2|, or -38 by 3, or -36 by 3^, with 3 lbs. uniformly loaded, or 
r87 lbs. suspended from the middle, deflects of an inch. 
The breaking weight of Red Pine 3 ft. long, "47 in. by 1| in , is 33.37 x 3 =100 lbs. 
uniformly loaded, or 26-69 x 1-87 = 50 lbs. suspended from the middle. The breaking 
weight of Red Pine 4 ft. long, -63 in. by 1| in., is 33-37 x 4=133 lbs. uniformly loaded, 
or 26-69 x 2 50 = 66 lbs. suspended from the middle ; and so on throughout the table ; 
the breaking weight suspended from the middle being, in all cases, one half of the 
weight uniformly loaded. 
*^* To find the depths of other kinds of timber to have the same deflection or strength 
as Red Pine, also for the use of the expression see the Table of Constants 
and Examples. 
