Investor Presentaiton

LP'S TRANSFORMATION DELIVERS VALUE Commodity → Specialty PAGE 7 • OSB → Siding • Commodity OSB → Value-add OSB • • New construction → Repair and remodel Volatile commodity pricing → Stable and growing specialty pricing and margins Top-Tier Stockholder Returns · Efficient capital allocation strategy returns cash to stockholders . Siding funds its own growth, OSB cash flow returned to stockholders via share buybacks • 5-year compounded total stockholder return of 28% per year (S&P500: 15.7%)¹ . • 3-year compounded total stockholder return of 26% per year (S&P500: 10.0%)² 1. Factset, January 1, 2019 through December 29, 2023 2. Factset, January 1, 2021 though December 29, 2023 LP BUILDING SOLUTIONS

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