Comparison · cost per use and risk
Plastic vs cardboard cores: the full comparison
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In short
There is no best material in absolute terms. There is a best material for a given life cycle. ROLL, the publisher of this guide, works with both supply chains and has an interest in the choice being right, not in it always being the same. So we start with a sentence that is awkward for anyone selling plastic: for most one-way industrial rolls, the cardboard core is still the cheapest choice.
Point-by-point comparison
| Criterion | Cardboard core | Plastic core |
|---|---|---|
| Price per piece (same size) | reference = 1 | 2 to 5 times |
| Weight (same size) | 1 | 1.1–1.2 (PP, HDPE) · 1.8 (PVC) |
| Moisture | absorbs water, loses strength: about −20% from 8% to 10% moisture on a 3" × 7.5 mm core | absorbs no significant water |
| Dust and fibres | sheds fibres when cut and rubbed | no fibres; washable |
| Crush behaviour | peak, then failure | goes oval and keeps carrying load (maximum load 2.2–3.5 times) |
| Heat | little affected by temperature as such | loses stiffness: about −20/−30% at 50 °C (PVC) |
| Load over time | stable if dry | creep: the bore closes over time |
| Reuse | limited; ends are trimmed | from more than 3 to more than 35 minimum cycles reported, depending on polymer |
| EU recycling of the material (packaging 2024) | 85.3% (estimate) | 42.4% (estimate) |
| European waste code, clean | 15 01 01 | 15 01 02 |
| PPWR, minimum recycled content | no specific obligation | 35% from 2030, 65% from 2040 (Art. 7); 10% and 25% if contact-sensitive |
| UK Plastic Packaging Tax | not applicable | due on components with less than 30% recycled plastic |
Sources: weight, strength, cycle and moisture ratios from Fiaptech technical documentation (a company with corporate ties to ROLL); Eurostat recycling rates (env_waspac, 2024 estimates); PPWR, Regulation (EU) 2025/40; HMRC Plastic Packaging Tax guidance. ROLL Lab analysis.
Cost per use: the formula
Price per piece is misleading. The right figure is cost per use:
Cost per use = (core price + cost of returns) ÷ number of actual uses
For a system in steady state, where every lost or scrapped core is replaced, the ROLL Lab uses a simpler form. If t is the share of cores that come back on each trip, k the plastic price as a multiple of cardboard and r the cost of one return as a multiple of cardboard, the cost of each trip is about k × (1 − t) + r × t. Plastic pays if this number falls below 1.
| Plastic price (k) | Return cost (r) | Minimum return rate to break even | Average trips per core |
|---|---|---|---|
| 2.0 | 0.2 | 56% | 2.3 |
| 3.0 | 0.2 | 71% | 3.5 |
| 3.5 | 0.2 | 76% | 4.1 |
| 4.0 | 0.3 | 81% | 5.3 |
| 5.0 | 0.3 | 85% | 6.7 |
ROLL Lab analysis. Minimum return = (k − 1) ÷ (k − r); average trips = 1 ÷ (1 − return). The table says one simple thing: with cores costing 3–4 times cardboard, reuse works only if the great majority of cores come back. A 50% return rate is almost never enough.
The calculation is below. For the full version, with the formulas explained, open the reuse break-even calculator.
Does reuse pay?Reuse is a promise until you do the sums. Give me prices, returns and the cost of the trip: I’ll tell you after how many trips plastic breaks even.
Your full report is ready. Where shall I send it?
I’ll show you average uses, cost per use, break-even point and the full curve right here, and email you a copy. One email only, no automatic sign-up.
ROLL Lab estimate, not a test certificate. Prepare your enquiry for the manufacturer →
The cost of failures avoided
Sometimes plastic is justified not by cost per use but by risk. A cardboard core that collapses under a roll of film often makes the whole roll unusable: the material must be rewound or scrapped, the machine stops, the customer complains. If, in a damp environment or a clean area, cardboard causes even a few failures a year, their cost can exceed the price difference on all the cores. Three typical cases:
- Moisture: rolls stored outdoors or shipped in containers to humid climates. Moisture and outdoor storage.
- Contamination: paper fibres on food, pharmaceutical or electronics film. Hygiene and cleanrooms.
- Extreme loads: very heavy rolls where a sudden cardboard failure is unacceptable. Here, however, plastic creep must also be checked. Strength and creep.
The risk runs the other way too: an undersized plastic core in a summer container closes up and the roll will no longer come off the shaft. Plastic is not a guarantee: it is a material with different limits.
Use the calculator below, or open the cardboard or plastic check for your case full page, with method and sources.
Cardboard or plastic for your caseTell me the environment, reuses and pressure: I’ll put cardboard and plastic in the ring and tell you which costs less per use, with the wall each one needs.
Your full report is ready. Where shall I send it?
I’ll show you walls, weights per metre and cost per use of cardboard and plastic for your case right here, and email you a copy. One email only, no automatic sign-up.
ROLL Lab estimate, not a test certificate. Prepare your enquiry for the manufacturer →
Environment and recycling
Which material is better for the environment depends on the number of uses. A cardboard core is usually made largely from recycled fibre and goes back to the paper mill; a one-way plastic core uses more fossil material and is recycled less. With many real reuses, plastic spreads its impact over many trips and can come out lighter per use. A serious comparison needs a life cycle assessment (LCA) with your own data: core weight, return distances, number of cycles, end of life.
When a supplier claims “x% less CO₂”, ask three things: the functional unit (one core, or one winding cycle?), the system boundaries (material production only, or returns and end of life too?) and the verification. Serious studies follow ISO 14040 and 14044 for LCA and ISO 14067 for carbon footprint, and are reviewed by third parties; an environmental product declaration (EPD, ISO 14025) makes the numbers comparable. A figure that holds for a one-way core says nothing about a core that makes twenty trips, and vice versa.
Two context figures (Eurostat, env_waspac, 2024 estimates): the EU recycled 85.3% of paper and board packaging and 42.4% of plastic packaging. For industrial cores, collected separately and clean, the real rate can be very different from the average.
UK tax, EPR and PPWR
United Kingdom. A plastic core that leaves the plant with the roll is normally a plastic packaging component for the Plastic Packaging Tax: if it contains less than 30% recycled plastic, the UK manufacturer or importer pays the tax per tonne (£228.82 per tonne from 1 April 2026) once over 10 tonnes in 12 months. A cardboard core is out of scope, because plastic is not its main material by weight. Under UK packaging extended producer responsibility (pEPR), larger producers also report the packaging they place on the market, by material. Rates and thresholds change: check GOV.UK before quoting them.
European Union. National EPR schemes treat cores with wound material as packaging, both cardboard and plastic. In Italy, for example, the CONAI circular on tubes and rolls of 27 June 2013 excludes only tubes that are part of machinery and do not present the product, and the environmental fee for plastic is several times that for paper. Under the PPWR both cores must be recyclable from 2030. Only the plastic core also carries the post-consumer recycled content obligation (Art. 7). PPWR and plastic cores.
How to decide in practice
- Describe the real life cycle of the core: where it goes, who uses it, who throws it away, whether it comes back.
- Measure the return rate, even with a trial over a few months.
- Calculate cost per use with your prices and your return cost, including any Plastic Packaging Tax.
- Add the cost of last year’s core-related failures.
- Check the constraints: temperature, hygiene, PPWR, collection capacity.
- Trial on one line and with one customer before changing everything.
Frequently asked questions
Do plastic cores cost more than cardboard?
Yes, 2 to 5 times at the same size. Compare cost per use: if most cores come back and make several trips, plastic can cost less than one-way cardboard.
How often must a plastic core come back to pay off?
It depends on price and return cost. With a core at 3.5 times cardboard and a return at 20% of the cardboard price, at least 76% of cores must come back, about 4 trips per core on average (ROLL Lab analysis).
Is cardboard greener than plastic?
For one-way use, usually yes: it is made from recycled fibre and recycled with paper. With many real reuses plastic can have a lower impact per use. You need an LCA comparison with your own data.
Is a plastic core stronger than a cardboard one?
At maximum load, yes: 2.2 to 3.5 times at the same size according to Fiaptech technical documentation (a company with corporate ties to ROLL). But plastic creeps over time and loses stiffness in the heat: over weeks the comparison must be calculated case by case.
Further reading
Reuse
Reusable plastic cores: how many cycles, how to organise returns, inspection, washing, traceability, cost per use and the PPWR rules on reusable packaging.
Moisture and outdoors
Plastic cores for moisture and outdoor storage: water, containers, condensation, UV, frost, heat and thermal expansion. Which polymer to choose and why.
Hygiene and food
Plastic cores for food, pharmaceutical and cleanroom film: no fibres, washing, Regs 1935/2004 and 10/2011, GMP, NIAS, recyclate, FDA and returned cores.
PPWR
PPWR (EU 2025/40) and plastic cores: when they are packaging, 35% and 65% recycled content, exemptions, grades A–C, reuse, QR labels, dates and the UK tax.
Guide
Plastic cores for rolls: PVC, PP or HDPE, sizes, strength, reuse, hygiene, moisture and PPWR. A technical guide with data, standards and calculators.
Sources
- Eurostat, env_waspac, packaging recycling rates 2024 (estimates), Eurostat
- Fiaptech technical documentation, Smart Book “Which core?” (a company with corporate ties to ROLL)
- HM Revenue & Customs, Check which packaging is subject to Plastic Packaging Tax, GOV.UK
- CONAI circular of 27/06/2013 on tubes and rolls (Italy), Comieco
- Regulation (EU) 2025/40 (PPWR), Arts. 6 and 7, EUR-Lex
- NS Packaging, plastic core reuse case (2009)
- ROLL Lab analysis (cost per use and return thresholds)
- ISO 14040 and ISO 14044 (LCA), ISO 14067 (carbon footprint), ISO 14025 (EPD)
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