Louisiana-Pacific sales slump 21% as OSB and siding demand softens

Louisiana-Pacific (NYSE:LPX) reported a challenging start to 2026, as the company grappled with a broad-based slowdown across its primary building product categories.

The Nashville-based manufacturer posted consolidated net sales of $574 million for the first quarter ended March 31, 2026, representing a $149 million or approximately 21% decrease compared to the same period in 2025.

The downturn was felt most acutely in the Oriented Strand Board (OSB) segment, where net sales plunged by $99 million to $168 million.

The Siding business, often a stabilizer for the company, also faced headwinds, with net sales decreasing 10% year-over-year to $360 million.

Profitability metrics followed the downward trend in revenue.

Net income for the quarter was $27 million, a sharp decline from the $91 million reported in the first quarter of the prior year.

On a per-share basis, diluted earnings came in at $0.39.

Adjusted EBITDA for the period was $82 million, a nearly 50% drop from the $162 million generated in Q1 2025, while adjusted diluted EPS settled at $0.38.

Cash flow reflected the tightened operating environment, with the company reporting $38 million in cash used in operating activities during the first three months of the year.