Packaging Corporation of America announced a $140 per ton containerboard price increase set to take effect Sept. 1, according to a Friday memo to investors from Michael Roxland, senior paper and packaging analyst at Truist Securities, citing industry contacts.

This amount is double what producers typically announce for increases, with numerous industry participants and observers calling it unprecedented and shocking.

This is PCA's third announced containerboard increase in 2026 so far, and other top producers have previously announced similar increases at the same times. All of the companies' previous hikes this year had been for $50 to $70 per ton.

Containerboard producers have garnered a lot of attention in 2026, largely as observers follow how the market shakes out after the North American industry's 2025 facility closure announcements that amounted to a historic, nearly 10% production capacity loss.

Packaging Corporation of America executives have been among those in the industry characterizing the current containerboard market as "tight." Executives reiterated that observation during the company's second-quarter earnings call on Thursday, in addition to describing increases in corrugated demand and shipments.

Despite several companies' executives pointing to some containerboard market improvements over 2025, analysts have cautioned that the sector, and packaging overall, is not experiencing a robust recovery.

"It's hardly a time to celebrate the sector. While the stocks have risen 5-10% since May, demand remains lackluster and volumes weak," said George Staphos, Bank of America Securities analyst, in a July 14 memo about the overall paper and packaging sector. "Containerboard is okay, but that's because of pricing strength rather than demand."

Producers have repeatedly discussed what they view as a need to implement such increases due to rising input costs, including for OCC. However, questions have arisen across the industry about whether the input cost inflation warrants the level and frequency of increases announced so far in 2026.