Core plugs are plastic inserts that close the ends of the cardboard or plastic core of a roll or reel. They keep the core round, protect its edges during handling and transport, and give end walls a firm anchor point inside the core. ROLL supplies core plugs in HDPE for the two most common core sizes: 3 inch (76 mm) and 6 inch (152 mm).
Which core plug for your roll core
| Core inner diameter |
Plug |
Plug size (mm) |
Weight per plug |
Load per plug (product data) |
Pack |
| 3" (76 mm) |
PL-01 |
76×90 |
65 g |
350 kg |
2,304 pcs |
| 6" (152 mm) |
PL-07 |
152×165, fits 165 mm deep into the core |
630 g |
1,250 kg |
252 pcs |
Core plug alone or with end walls
Core plug alone. It closes and reinforces the core ends, but the roll surface still rests on the pallet or on the floor.
Core plug with end walls. To keep the roll suspended, use end walls for rolls: models with an integrated plug for 3" and 6" cores, or the versions without plug (FL-06S-152, FL-06SA-152, FL-07S-152, FL-07SA-152), which have an open 6-inch hole and can be combined with a separate PL-07 plug. All sizes are in the collection end walls and end plates for rolls.
Other core sizes. Plugs of 70 mm, 110 mm and 150 mm exist only as integrated plugs on specific end walls: FL-03-70, FL-51-110, FL-06-150.
Frequently asked questions
Is my roll core 3 inch or 6 inch?
Measure the inner diameter of the core. About 76 mm means a 3-inch core, about 152 mm a 6-inch core. For 70 mm, 110 mm or 150 mm cores, look at the end walls with an integrated plug of that size.
What load does a core plug take?
According to the product data, PL-01 is rated 350 kg per plug and PL-07 1,250 kg per plug. The real limit also depends on the core, the roll and the handling: for heavy rolls, ask us to confirm before ordering.
Can I use a core plug without end walls?
Yes. PL-01 and PL-07 alone close and protect the core ends of 3-inch and 6-inch cores. On their own they do not lift the roll surface off the pallet: if the roll must stay suspended, add end walls.
Are core plugs reusable?
They are rigid HDPE parts and can be reused when they come back undamaged. Check each plug for cracks before reuse.
How are core plugs sold?
In full packs: PL-01 in packs of 2,304 pieces, PL-07 in packs of 252 pieces. For other quantities, use Request a quote.
Read more: Core sizes, plugs and end plates · Cradle, wedge or flange · How to secure rolls for transport.
