JIM-GEM - Forestry Suppliers

205 West Rankin Street | P.O. Box 8397 | Jackson, Mississippi 39284-8397 | (601) 354-3565, FAX (601) 292-0185

/Images/Original/5900_45008_i1.jpg
Jim-Gem

Jim-Gem® English Area Grid

Item #: 45008
$6.50
Earn 0 reward points with this purchase.

Description

Jim-Gem English Area Grid, 7” x 9”

Use to determine the area of any flat surface in English measurement units. Scales and ratios include: 1 in.: 1 in 1 in.: 1 ft. 1 in.: 1 yd. 1 in.: 500 ft. = 10.56 ins.: mi. = 1:6,000 1 in.: 1,000 ft. = 5.28 ins.: mi. = 1:12,000 1 in.: 1,320 ft. = 4.0 ins.: mi. = 1:15,840 1 in.: 1,667 ft. = 3.167 ins.: mi. = 1:20,000 1 in.: 2,000 ft. = 2.64 ins.: mi. = 1:24,000 1 in.: 3,334 ft. = 1.58 ins.: mi. = 1:40,000 1 in.: 5,280 ft. = 1 in.: mi. = 1:63,360 Two edge scales (inches to tenths and inches to 16ths) are included. It may also be used with any other map scale, but first you must figure the conversion factor. Available in standard size or super size. How To Use the English Area Grid – To use, randomly place grid over area to be computed and count the dots falling within that area. Count every other dot that falls on the boundary of the area. Multiply the number of dots counted by the proper conversion factor for the scale you are using to obtain total area. Example: Using a map scale of 1”= 1,320 ft. 1,320² = 1,742,400 sq. ft./sq. in. of area grid 1,742,400 ÷ 43,560 sq. ft. per acre = 40 acres/sq. in. of area grid 40 acres ÷ 64 dots per sq. in. of area grid = 0.625 acres per dot conversion factor Each dot represents 0.625 acres. If the dot total of an area is 50 dots, multiply 50 by the conversion factor. 50 x 0.625 = 31.25 acres within area. This can be done using any map scale.

Have A Question?

Quick Specs

Brand Jim-Gem
MPN 55625
UPC 073577556256
UNSPSC 44111800
Other
How To Use the English Area Grid – To use, randomly place grid over area to be computed and count the dots falling within that area. Count every other dot that falls on the boundary of the area. Multiply the number of dots counted by the proper conversion factor for the scale you are using to obtain total area. This can be done using any map scale. Example: Using a map scale of 1”= 1,320 ft. 1,320² = 1,742,400 sq. ft./sq. in. of area grid. 1,742,400 ÷ 43,560 sq. ft. per acre = 40 acres/sq. in. of area grid. 40 acres ÷ 64 dots per sq. in. of area grid = 0.625 acres per dot conversion factor. Each dot represents 0.625 acres. If the dot total of an area is 50 dots, multiply 50 by the conversion factor. 50 x 0.625 = 31.25 acres within area.

Quick Specs

Brand: Jim-Gem
MPN: 55625
UPC: 073577556256
UNSPSC: 44111800

Have a question about this product?

No Reviews on This Product

Tell us what you think!