Bubble Wrap Specs: 100 m × 40 GSM
Reordering 100 m, 40 GSM Bubble Wrap: How to Keep the Specifications Consistent
When reordering 100 m, 40 GSM bubble wrap, specify the roll width, 100-metre length, and 40 GSM material weight every time. Include the previous product code or quotation reference, and request a reference roll weight for receiving checks.
“Same as last time” may be unclear if your business uses several widths or lengths, or if a different person handles purchasing.
Why Specify Both 100 m and 40 GSM?
The two figures describe different characteristics:
- 100 m identifies the roll length.
- 40 GSM means 40 grams of material per square metre.
- Roll width determines how much material area is supplied at that length.
A complete description might read:
Bubble wrap, 50 cm wide × 100 m long, 40 GSM.
GSM is a measure of material weight per area. It is not a thickness measurement in microns.
Keep a Record of the Approved Specification
Once you have tested a product and found it suitable, retain the details for repeat orders.
| Specification | Information to record |
|---|---|
| Product | Bubble wrap roll |
| Width | Required width in centimetres |
| Length | 100 m |
| Material weight | 40 GSM |
| Bubble diameter | Agreed specification |
| Reference weight | Whether the core and packaging are included |
| Previous order | Product code or quotation reference |
| Tolerances | Agreed tolerance for each relevant specification |
Use the same description in the quotation, purchase order, and receiving record.
Example Reorder Request
Please quote 20 rolls of bubble wrap, 50 cm wide × 100 m long, 40 GSM, matching our previous approved order. Please confirm the bubble diameter, reference roll weight, whether the weight includes the core, applicable tolerances, price, and delivery lead time.
The width and quantity above are examples. Replace them with your actual requirements.
Can You Change the Width but Keep 100 m and 40 GSM?
Yes, provided the supplier offers that width with the required specification.
State that only the width is changing. For example:
Please quote 65 cm width instead of 50 cm, keeping the length at 100 m and the material specification at 40 GSM.
A wider roll contains more material area and has a higher theoretical material weight. Request an updated quotation and reference weight.
Test the new width at the packing station before ordering a large quantity.
What Should 100 m, 40 GSM Bubble Wrap Weigh?
The theoretical material weight is:
Width in metres × length in metres × GSM ÷ 1,000 = kilograms
For a roll measuring 65 cm × 100 m × 40 GSM:
0.65 × 100 × 40 ÷ 1,000 = 2.6 kg
This is the calculated weight of the bubble wrap material, excluding the core and external packaging. It is not an actual measurement of a particular roll.
Actual weight must be assessed against the agreed tolerances for width, length, and GSM.
Compare Weights on the Same Basis
A supplier may report:
- Material-only weight.
- Material plus core weight.
- Total packed weight.
These figures are not directly interchangeable.
Weight alone cannot prove that a roll contains exactly 100 metres. Width, GSM, construction, and the items included in the weighing also affect the result.
Read more about checking GSM and roll weight when buying 100 m bubble wrap.
What Should You Check When the Order Arrives?
Compare the delivered order with the approved quotation and purchase order.
Check the roll width, stated length and GSM, roll count, visible condition, and reference weight on the agreed basis.
If a weight differs from the reference, check the scale and whether the core or packaging is included. Record the findings and ask the supplier to investigate before drawing a conclusion.
Reordering from PackBros
For PackBros 100 m, 40 GSM bubble wrap, provide your required width, roll quantity, delivery location, and previous quotation reference.
You can review PackBros bubble wrap and packaging products or contact PackBros to confirm your reorder specification.
Confirm the current specification, tolerances, availability, and delivery terms before placing the order.
Frequently Asked Questions
Is “100 m bubble wrap” a complete specification?
No. Include the width, GSM, bubble diameter, and other agreed requirements.
Do all 100 m, 40 GSM rolls weigh the same?
No. Different widths contain different material areas and therefore have different theoretical weights.
Must a 65 cm × 100 m × 40 GSM roll weigh exactly 2.6 kg?
No. That is a theoretical material-only weight. Actual weight depends on manufacturing tolerances and the weighing basis.
Should you test packing again when reordering?
If the product, carton, or shipping method changes, reassess the packing arrangement even when the bubble wrap specification remains the same.
Keep the approved specification and reference weight together so purchasing and receiving teams work from the same information.