Recycled Plastic Plugs That Keep Stacked Rolls Safe
Double core plugs join two rolls core-to-core, so you can stack rolls on end in a straight column on a pallet and carry the weight through the cores. We mold them from recycled plastic in 3-inch and 6-inch sizes and keep both in stock.
How Double Core Plugs Protect Your Rolls
Rolls stacked on end press their full weight into the wound edges of the rolls below, and the column can drift off center in transit. A double core plug is two plugs molded back to back: one side fits into the top of the lower roll’s core, and the other fits into the bottom of the roll above. The cores lock in line, so the load passes core-to-core and the stack stays straight.
The plug walls also keep each core end round so it sits on shafts and chucks, and vertical stacking makes pallets faster to load and unload. We mold our plugs from recycled plastic that can be recycled again at most local recycling centers and holds up to the moisture that weakens wood and fiber plugs.
Double Core Plug Sizes
Your core’s inside diameter (ID) sets the plug size, so a 3-inch core takes a 3-inch double plug. Cores often measure a few thousandths over their nominal size, so take the ID with calipers before you order. Our core plug size chart covers measuring in more detail. Exact outer diameter, wall, and flange dimensions are available on request.
If our stock 3 inch and 6 inch double plugs do not fit your requirement, we can mold a custom core plug in the size, color, and grade you need, with no order minimum.
Match the grade to how heavy the roll is and how roughly it gets handled.
Standard
Lighter rolls and everyday handling.
Heavy-duty
Thicker walls for heavier rolls or rougher transit.
Crush-resistant and extreme-duty
The heaviest rolls and the highest stacking and impact loads.
Rolls We Protect With Double Core Plugs
Double plugs are for rolls that store and ship on end.
Plastic Film and Flexible Packaging
Film rolls are often palletized on end. With a double plug between each roll, the weight above rides on the cores instead of pressing into the film edges, and each core stays round for the unwind shaft.
Narrow Paper and Paperboard Rolls
Slit paper and board rolls often go on the pallet several high. A double plug between each pair carries the stack weight through the cores.
Tape, Label, and Adhesive Stock
Short rolls of tape and label stock stack in tall columns, and double plugs keep them straight from your packing line to your customer's dock.
Textiles and Nonwovens
Fabric and nonwoven rolls that ship on end get restacked several times between the mill and the cutting table. The plugs keep the column aligned through every move.
If a roll ships on its side, use single core plugs instead. If the face or edges of the roll can't touch anything, look at our pad plugs or roll suspension plugs.
How to Order Double Core Plugs
Request a Sample-
1
Measure your core
Take the inside diameter with calipers.
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2
Choose your size and grade
Match the ID to the 3-inch or 6-inch double plug, or ask us about a custom size.
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3
Test a sample
We send free samples so you can check fit and stack stability on your own rolls before placing a full order.
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4
Place your order
Send the item code and quantity, and we'll confirm pricing and a ship date.
Complete Your Roll Packaging
Double core plugs handle rolls that stand on end. For rolls that ship on their side, CradlePak plastic roll cradles support the outside of the roll so it can’t roll on a pallet or shift in a container, and single core plugs protect the core ends. If you ship both ways, we can quote plugs and cradles together. To match cradles to your roll’s outside diameter, see our roll cradle size guide.
Other Core Plug Types
The right type depends on how much contact the roll’s outer surface can take, since core plugs, pad plugs, and roll suspension plugs each protect rolls in various ways. All four types are part of our plastic core plug line, molded from recycled plastic.
Single Core Plugs
Cap one end of a core, used in pairs for rolls that ship on their side in a cradle or lie flat.
Explore Single Core Plugs→
Pad Plugs
Add a flat pad that holds the roll off the box floor and protects the outer wraps and edges.
Explore Pad Plugs→
Roll Suspension Plugs
Pair with end boards to hold the roll off every surface, for high-value film, foil, and coated stock.
Explore Roll Suspension Plugs→Why Choose Tamarack for Double Core Plugs
We mold our core plugs at our plant in Yakima, Washington, and sell them with no minimum order. We keep 3″ and 6″ double plugs in stock, and we mold custom sizes for cores outside those two. You work directly with our team on sizing, samples, and reorders.
U.S.-based manufacturer
No minimum order quantity
Fast turnaround and flexible production
Personalized service
Request Double Core Plug Samples
Send us your core ID and application. We’ll match you to a plug and ship samples so you can test them on your own pallets. You can also call us at 509.452.3330.
Frequently Asked Questions
What is a double core plug?
A double core plug is essentially two plastic core plugs molded back to back. One side fits into the top of one roll's core, and the other side fits into the bottom of the roll stacked above it, so rolls stack on end in a straight column on a pallet.
What size double core plug do I need?
Match the plug to your core's inside diameter: a 3-inch core takes a 3-inch double plug. We stock 3-inch and 6-inch double plugs and mold custom sizes with no order minimum. If your core falls between sizes, send us the measurement and we'll confirm the fit.
How many rolls can I stack with double core plugs?
That depends on your needs. Reach out for pricing and samples to confirm this for your specific application.
When should I use a double plug instead of a single plug?
Use double plugs when you stack rolls vertically on a pallet, so the load passes core-to-core. Use single plugs when a roll ships on its side in a cradle or lies flat.
Are Double Core Plugs Recyclable?
Yes. We mold them from recycled plastic, and they can be recycled again at most local recycling centers.