Fig. 66.—Glidden Patent Steel “Thick Set.”
Fig. 67.—Glidden Patent Four-point.
Barb wire of nearly, if not quite all the popular kinds, is shipped from the factory on strong spools, each holding one hundred pounds in weight, or eighty rods in length. These spools are bored through the center to admit a stick or bar, which can be used as an axle in unreeling the wire. The following table shows the weight of wire required for fencing the respective areas named:
| Area | Length of Boundary. | Weight of Wire. | |
|---|---|---|---|
| 1 Strand. Lbs. | 3 Strand. Lbs. | ||
| 1 Acre | 60 Rods. | 67 | 202 |
| 5 Acres | ⅜ Mile. | 167 | 400 |
| 10 Acres | ½ Mile. | 183 | 548 |
| 20 Acres | ¾ Mile. | 273 | 820 |
| 40 Acres | 1 Mile. | 365 | 1095 |
| 80 Acres | 1 ½ Mile. | 547 | 1642 |
| 160 Acres | 2 Miles. | 730 | 2190 |
Fig. 68.—Brinkerhoff Steel Strap and Barb.
It will be observed that the larger the area enclosed, the smaller is the amount of fence required per acre. The cost of fence complete can be estimated by adding to the amount of wire indicated in the last column, the cost of sixty posts, and three and three-quarter pounds of staples, for every sixty rods. To ascertain the weight of wire required for any desired number of strands, multiply the figures of the first column of “weight of wire” by the number of strands proposed to be used.