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The Following are the calculations to figure M-weights (weight per thousand sheets) on different products. We find it beneficial to the distributor to approximate the weight for an order.

For Plain Chipboard, Pasted and Clay-coated:
Length x Width  ÷ 144 x (Factor) = M Weight
Example for 30 x 48 .025 Chip
30 x 48 ÷ 144 x 85 = 850M

Below is the caliper with the corresponding factor to calculate an M-weight.

Bending Chip
Caliper - Factor

.020-76            
.022-80            
.025-85                        
.030-103                       
.035-120                       
.040-138
.042-144                       
.045-153
.050-167                        

Pasted Chip
Caliper - Factor

.060-200
.070-245
.080-279
.090-315
.100-350
.120-419
.130-454
.140-490

For Utility Chipboard, Wallboard, Creamface, 620 News etc:
Length X Width X 375 ÷ 1000 = M-Weight.
Example: 40 x 48 X 375 ÷ 1000 = 720# per thousand sheets

For Kraft, Newsprint, Butcher, Bleach, Deli, Meat Wrap and Tissue in Sheets:
Length X Width X Basis Weight ÷ 432 = Weight per 1,000 Sheets
Example: 36 x 48 x 50 (BS. 50) ÷ 432 = 200# per 1,000 Sheets

For Kraft, Butcher, Bleach, Deli and News in Rolls:
Length x 12 X Basis Weight ÷ 432 x Lineal Feet = Weight per roll
Example for 36” BS 40 Natural Kraft 1275’
36” x 12 x 40 (BS. 40) ÷ 432 x 1275= 51# per roll.

Lineal Footage

Standard Kraft Counter Roll:

BS 30- 1625’
BS 40- 1275’
BS 50- 1025’
BS 60- 825’
BS 75- 650’

Standard Butcher & Deli:

BS 30- 1625’
BS 40- 1300’
BS 50- 1100’

Standard News:

BS 30- 1625’

Standard Freezer:

Econo (35/5)- 1100’
Prem. (40/6)- 1100’
Safety – 1000’


TIP: If 100% recycled kraft is marked standard lineal footage and is 9” in diameter or less it would be doubtful if the roll contained the correct lineal footage. 100% Recycled Kraft is a thicker sheet of paper than virgin paper.

 
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