# Crepe Tape Formulas

## How Much Tape Do You Need?

### Total Rolls x Basis Weight = Total Lbs of Tape

Take the width of your bag (in inches) and add 2 to 4 inches to allow for overhang and space between bags to determine the length of tape you need per bag. Find the total length you’ll need to close all your bags, then divide that by tape yield (different from thread yield) to find the total number of rolls you will need. Finally, multiply the total rolls by roll weight to get the total pounds of tape you will need.

Example: 36″ bag using 2 1/2″ bleached crepe tape to close 100,000 bags. (Use 40″ tape per bag including overhang.)

Total lbs of Tape Needed = Total rolls x Basis Weight

• Determine the total amount of crepe tape needed to close one bag.  This amount includes overhang.
• Convert total inches of tape needed into feet.
• 40″ / 12″ = 3.33 feet of tape per bag
• Calculate total feet of tape needed to complete job.
• 100,000 bags x 3.33 ft = 333,333 total ft tape
• Calculate tape yield
• See yield formula above
• Determine total number of rolls needed.
• 333,333 feet / 6173 = 54 rolls
• Find total pounds needed
• 54 rolls x 30 pounds = 1,620 pounds of tape needed

## Basis Weight (Roll Weight)

### Basis Weight = Paper grade weight / 3

Example: 70 lb paper

~ Basis Weight = 70 / 3

~ Basis Weight = 23.33 lb/msf

## Basis Weight Quick Reference Chart

(standard sizes only listed) || Roll Weight (in pounds)

(using 70 lb grade; diff for 80lb and 90lb)

(standard sizes)

(in pounds)

2″ 24
2¼” 26.8
2 3/8″ 28.3
2½” 30

## Crepe Tape Yield Refers to the linear feet per roll.

### Yield = (roll weight/basis weight) x (1000/ (Tape width / 12) )

Example: Yield for 2.5″ crepe tape

~ Yield = (30* / 23.33** ) x (1000/ (2.5/12))

~ Yield = (1.2858) x (4800.07)

~ Yield = 6,171.93 linear ft. of tape per roll

2″      || 6175

2 1/4″ || 6126

2 3/8″ || 6129

2 1/2″ || 6173