Can you recycle cardboard boxes?
Yes
Yes, and this is the easy one. Empty it, pull out the foam and air pillows, flatten it, keep it dry. Tape and labels can stay on. The two boxes that do not make it are the wax-coated one and the soaked one.
Follow it down the line
Three different questions hide inside "is this recyclable?", and the answer can change at each step.
The material · Yes
Is the material recyclable?
Corrugated is the material the whole recycling system was arguably built around. US mills consumed 32.7 million tons of recovered paper in 2024, and the corrugated industry's own trade body says box fiber goes around at least seven times before it is spent. The rate is the part worth knowing precisely, because the number in circulation is out of date. For years the industry published an OCC recycling rate of 93.6%. AF&PA then rebuilt the calculation, deducting the moisture and non-paper material sitting in recovered bales, adjusting for packaging that arrives as imports, and reporting a range instead of a single figure to acknowledge that parts of it are estimates. On the new method, 69% to 74% of the cardboard available for recovery was recycled in 2024. That is a large drop and it is not a collapse in performance; it is the same performance measured more honestly. Either number still describes the most recycled packaging material in the country.
Sources: AF&PA: paper industry announces 2024 US paper recycling rates, AF&PA: recycling rate methodology, Fibre Box Association: boxes remain a recycling success story
The facility · Yes
Will a sorting facility recover it?
Cardboard gets the first and biggest machine in the building. An OCC screen sits near the front of the sort line and does one job: mid to large cardboard rides over the top while everything smaller drops through to be sorted downstream. Nothing else in your cart gets dedicated equipment on that scale, which is the practical reason cardboard is the most reliable thing you can put out. Two consequences follow from how that screen works, and they explain the advice you get. Flattening matters because a flat box presents itself to the screen as a large flat object; a collapsed one behaves the way the machine expects. And the screen is specified for mid to large material, so a small box does not automatically take the same path through the plant as a large one. Downstream, the grade a mill buys is tightly drawn: ISRI's OCC specification allows prohibitive materials to reach only 1%, with outthrows and prohibitives together capped at 5%. That is a narrow tolerance, and it is why the packing foam left inside a box is not a trivial matter.
Sources: CP Group: introducing the new OCC auger screen, ISRI: old corrugated containers (OCC) specification
Your curbside program · Widely accepted
Will your curbside program take it?
Close to universal, and the instructions are consistent enough to be worth memorizing. Cuyahoga County takes corrugated and boxboard alike, wants it empty, clean, dry and flattened, and says plainly that flattening is not only about cart space: it helps the facility sort the material correctly. San Jose adds the details people actually get wrong. Tape, glue and other adhesives are fine and do not need peeling. Packing material does need to come out, meaning the foam, the twist ties, the bubble wrap and the air pillows. Oversized boxes should be cut down to fit loosely in the cart rather than set out whole. Shiny or glossy board, a toothpaste box for instance, is recyclable; wax-coated board is not, and you can identify it by scratching the surface. Two hard limits recur: wet and greasy. San Jose says do not recycle cardboard that is wet or contaminated by food or grease, and to cut the soiled part away and recycle the clean remainder. Programs disagree about grease specifically, which is a whole argument of its own and belongs on the pizza box page.
Sources: CuyahogaRecycles: cardboard, San Jose Recycles: cardboard
What you need to do
- Empty it, and take out the packing material: foam, air pillows, bubble wrap, twist ties
- Flatten it, which helps the sorting equipment as much as it helps your cart
- Keep it dry, and do not leave it at the curb in the rain
- Leave the tape and labels on, they are removed during pulping
- Cut oversized boxes down so they fit loosely rather than setting them out whole
Where else it can go
Pass the boxes on
Moving boxes in good condition are worth more to the next person moving than to a pulper, and San Jose suggests donating them rather than recycling them.
Good condition means dry and unsquashed. Nobody wants a box that has already failed once.
Mixed paper drop-off
Where a cart is full or a program is thin, flattened cardboard is accepted at mixed paper bins, often in school, municipal and parks parking lots.
Bin operators change locations without much notice. Cuyahoga's own page records losing a host site, so check before driving.
Cut away the ruined part
A box soaked or greased in one corner is not a lost cause. Cut off the soiled section, bin that, and recycle the clean board.
Worth it for a big box, not for a small one.
Common mistakes
- Leaving the foam or air pillows inside the box, which sends non-paper material into a grade that tolerates 1% of it
- Peeling off every strip of tape, which is real work that the process does not need from you
- Recycling a soaked box. The industry's own rate math now subtracts moisture out of recovered bales, which is a fair signal of how it is regarded
- Putting a wax-coated produce box in with the rest. Scratch the surface: if wax comes away, it is not going to pulp
- Assuming glossy means coated in plastic. A shiny toothpaste box is recyclable board