NYSE: LPX

Siding

We believe we are the largest manufacturer of engineered wood siding in North America. Our Siding business serves diverse end markets with a broad product portfolio of engineered wood siding, trim, soffit, and fascia. Our Siding is offered primed (LP® SmartSide® Trim & Siding, LP BuilderSeries® Lap Siding, and LP® Outdoor Building Solutions®) and pre-finished (LP® SmartSide® ExpertFinish® Trim & Siding) to meet the needs of builders and installers in new construction and repair and remodeling applications. As compared to solid wood, these products offer superior protection against hail, wind, moisture, fungal decay, and termites. The LP SmartSide environmental product declarations (EPDs), which detail the cradle-to-grave energy and materials required to produce LP SmartSide lap, panel, and trim in North America, demonstrate that the products store more carbon than is released during their lifecycles, making them carbon-negative exterior siding products. Our Siding products are used in new home construction, repair and remodeling projects, and outdoor structures such as sheds.

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We intend to continue growing sales in our Siding business and to increase the breadth of our Siding product offerings. To do so, we plan to increase the production capacity of these high-margin, value-added products. We have several options for increased capacity, including the addition of new plants, conversion of existing OSB plants to Siding manufacturing plants, expansion of existing Siding facilities, and expansion of our prefinished capacity and offerings. We will also seek to drive continued product innovation by utilizing our technological and engineering expertise in wood composites, overlays, chemical treatments, and durable and beautiful paints to better address the needs of our customers.

Oriented Strand Board (OSB)

Developed as a less expensive and more sustainable alternative to plywood, OSB is used as roof decking, sidewall sheathing, and floor underlayment. Our OSB business manufactures and distributes OSB structural panel products, including the innovative value-added OSB product portfolio known as LP® Structural Solutions (which includes LP® FlameBlock® Fire-Rated Sheathing, LP WeatherLogic® Air & Water Barrier, LP® TechShield® Radiant Barrier, LP Legacy® Premium Sub-Flooring, and LP® TopNotch® 350 Durable Sub-Flooring). Our LP Structural Solutions products are engineered to provide a variety of features such as fire resistance, enhanced water and moisture protection, energy efficiency, and greater weight-bearing capacity.

Our focus remains on promoting the benefits of LP Structural Solutions while maintaining strict cost control by (i) the efficiency with which we operate our manufacturing facilities (as measured by a widely used operational metric called Overall Equipment Effectiveness, or OEE), (ii) the efficiency with which we convert sustainably harvested wood fiber into our products, and (iii) our ongoing work to optimize logistics and reduce other costs.

Other

Our other operations include our South American business (LPSA) that manufactures and distributes OSB structural panels and siding products in South America and certain export markets. Additionally, our other operations includes timber and timberlands as well as other minor products, services, and closed operations, which do not qualify as discontinued operations.

OUR BUSINESS STRATEGY

Grow Our Siding Business. We believe that our leadership position in engineered wood siding allows us to benefit from demand growth, particularly as sustainable engineered wood products continue to displace alternative siding materials such as vinyl, fiber cement, and other materials. We have consistently grown our Siding business above the underlying market growth rates, and this business is less sensitive to new housing market cyclicality as over 50% of the demand for our Siding comes from other markets, including off-site structure production and repair and remodeling. We believe that long-term market trends and demographics suggest continued growth in demand for sustainable engineered wood siding in these markets, which we believe we are well-positioned to meet.

Generate Value-Added Sales Growth Through Customer Focus and Innovation. We believe that our products help our customers and end users to mitigate various challenges associated with building and construction activity, including labor shortages, because they are relatively easy to work with and allow for the consolidation of multiple steps into a single product system. Our marketing programs aim to drive awareness of our products and a greater understanding of our products’ specific features among builders, repair and remodel contractors, industrial manufacturers, and major home improvement retailers. Through our sales efforts, we target customers by distribution channel and focus on providing them with a broad array of traditional and specialty building products coupled with quality service. Our facilities are strategically located in the U.S., Canada, Chile, and Brazil to allow us to maintain geographic proximity to our customers and to remain responsive to their changing needs. We prioritize high-quality service and continue to build on our reputation for on-time shipments. In addition, we continually seek to identify new specialty building solutions and markets where we can utilize our core competencies in the design, manufacturing, and marketing of building products.

Focus on Operating Efficiency, Cost Reduction, and Portfolio Optimization. We continue to improve the OEE of our manufacturing facilities. We believe our OEE programs have produced excellent returns and generated many best practices that have been applied across our manufacturing system. Given these initiatives and the strategic locations of many of our facilities, we believe that we are very competitive regarding average delivered cost.

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As market conditions change, we will continue to adapt our product mix, selectively invest in new technologies that modernize our manufacturing facilities, and manage our capacity to best match customer demand. We believe that these strategies improve our portfolio and margins and enhance the quality and consistency of our earnings.

Pursue Selected Strategic Transactions. We continuously evaluate strategic investments in assets, businesses, and technologies, as well as investments that improve the performance of our businesses. We believe that our pursuit of these opportunities, if successful, could enable us to increase the size and scope of our businesses or joint ventures.

Expand Internationally. We believe that our investments in South America will help us continue to satisfy the growing demand for wood-based residential construction in this region. We believe that investments in this region can continue to be funded by cash generated by our operations in this region. Investments as a market leader in this region should enable us to leverage demand while diversifying both our revenue streams and exposure to market cycles.

OUR MARKETS

Our sales and marketing efforts are primarily focused on traditional distribution, professional building products dealers, home centers, third-party wholesale buying groups, and end users, particularly home builders, industrial manufacturers, and repair and remodel contractors. The wholesale distribution channel includes a variety of specialized and broad-line wholesale distributors and dealers focused primarily on the supply of products for use by professional builders and contractors. The retail distribution channel includes large retail chains catering to the do-it-yourself (DIY) and repair and remodeling markets, as well as smaller independent retailers.

OUR CUSTOMERS

We seek to maintain a broad customer base and a balanced approach to national distribution through both wholesale and retail channels. In 2025, our top ten customers accounted for approximately 47% of our net sales. Our principal customers include the following:

•Wholesale distribution companies, which supply building materials to retailers on a regional, state, or local basis;

•Distributors, who provide building materials to smaller retailers, contractors, and others;

•Building materials professional dealers that specialize in sales to professional builders, remodeling firms, and trade contractors that are involved in residential home construction and light commercial building; and

•Retail home centers that provide fully manufactured, modular, and panelized structures, for consumer and professional markets.

OUR COMPETITORS / COMPETITION

The building products industry is highly competitive. We primarily compete with other building products firms that offer alternative architectural and structural solutions. Our competitors include both large, diversified producers, and smaller regional manufacturers offering a wide variety of materials and product types. Our specialty products, including our Siding portfolio and LP® Structural Solutions, generally compete based on product features, benefits, quality, sustainability, and availability. Our commodity OSB products generally compete based on price, quality, and availability of products.

OUR MANUFACTURING

We operate manufacturing facilities throughout North America and South America. Our facilities utilize the best available manufacturing techniques based on the needs of our business segments, and we work continuously to improve our operating efficiency and productivity, as measured by OEE. LP operates more than 20 manufacturing facilities across North and South America.

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STRATEGIC SOURCING

We rely on various suppliers to furnish the raw materials and inputs used in the manufacturing of our products. To maximize our effectiveness in the marketplace, we have a centralized strategic sourcing group that consolidates purchases of certain materials and indirect items across business segments. The goal of the strategic sourcing group is to develop global strategies for a given component group, identify vendors and suppliers that meet our business requirements, promote a competitive pricing environment among our vendors and suppliers, and develop long-term relationships with those vendors and suppliers. By developing these strategies and relationships, we seek to leverage our material needs to implement leading practices, reduce costs, improve process efficiency, improve operating performance, and ensure continuity of supply.

RAW MATERIALS

Wood fiber is the primary raw material used in most of our operations, and the primary source of wood fiber is timber. The primary end-markets for timber harvested in the United States and Canada are manufacturers who supply: (1) the housing market, where timber is used in the construction of new housing and the repair and remodeling of existing housing; (2) the pulp and paper market; (3) commercial and industrial markets; (4) export markets; and (5) emerging biomass energy production markets. The supply of timber can be limited by particular factors that influence the accessibility of timberlands. These factors include policies governing forest management, Indigenous rights-based interests, alternate uses of land, and loss to urban or suburban real estate development. Because wood fiber is subject to commodity pricing, the cost of various types of timber that we purchase in the market has, at times, fluctuated greatly due to weather, government policies and regulations, or economic and other industry conditions. However, our mills are generally located near large and diverse supplies of timber. We source all our wood fiber sustainably, as certified according to the standards of the Sustainable Forestry Initiative® (SFI®) and the Programme for the Endorsement of Forest Certification (PEFC®).

In addition to wood fiber, we use significant quantities of various resins in our manufacturing processes. Resin product costs are influenced by changes in the prices of raw materials used to produce resin, primarily petroleum products and energy, as well as competing demand for resin products. Currently, we purchase most of our resin from five major suppliers. However, there can be no assurance that pricing or availability of resins will not be impacted by competing demand or supply chain disruptions due to significant weather or other uncontrollable events.

While a significant portion of the energy requirements of our plants are met by the energy produced from the conversion of wood waste, we also purchase electricity and natural gas. Energy prices have experienced significant volatility in recent years, particularly in deregulated markets. We attempt to mitigate our exposure to energy price changes through the selective use of long-term supply agreements.

SEASONALITY

Our business is subject to seasonal variances, with demand for many of our products tending to be higher during the building season, which generally occurs in the second and third calendar quarters in North America and the first and fourth calendar quarters in South America.

GOVERNMENT REGULATION

Our operations are subject to the laws and regulations of the United States and multiple foreign jurisdictions. These laws and regulations, which differ among jurisdictions and are subject to change, include those related to financial and other disclosures, accounting standards, corporate governance, environmental policy, intellectual property, tax, trade, antitrust, labor and employment, immigration and travel, privacy, and anti-corruption, among others. Additional information concerning legal and regulatory matters is set forth under “Risk Factors – Legal and Regulatory Risk Factors” in Item 1A of this annual report on Form 10-K.

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We are subject to income taxes and other corporate taxes in the United States and multiple foreign jurisdictions. Our provision for income taxes and our effective tax rate could be affected by numerous factors, including changes in applicable tax laws, interpretations of applicable tax laws, the amount and composition of pre-tax income in jurisdictions with differing tax rates, and the valuation of deferred tax assets. Additional information concerning tax matters is set forth under “Risk Factors – Legal and Regulatory Risk Factors - Regulatory and statutory changes applicable to us or our customers, including changes in effective tax rates or tax law, could adversely affect our financial condition and results of operations” in Item 1A of this annual report on Form 10-K, and in “Note 6 - Income Taxes” of the Notes to the Consolidated Financial Statements included in Item 8 of this annual report on Form 10-K.

Our operations are also subject to many environmental laws and regulations governing, among other things, the discharge of pollutants and other emissions on or into the land, water, and air, the disposal of hazardous substances or other contaminants, the remediation of contamination, and the restoration and reforestation of timberlands. In addition, certain environmental laws and regulations impose liability and responsibility on present and former owners, operators, or users of facilities and sites for contamination at such facilities and sites without regard to causation or knowledge of contamination. Compliance with environmental laws and regulations may significantly increase the costs of our operations. In some cases, plant closures could invoke more rigorous compliance requirements. Violations of environmental laws and regulations could subject us to additional costs and expenses, including defense costs and expenses and civil and criminal penalties. We cannot guarantee that the environmental laws and regulations to which we are subject will not become more stringent or be more stringently implemented or enforced in the future.

Changes in global or regional climate conditions and current or future governmental responses to such changes at the international level and U.S. federal and state levels, such as regulating and/or taxing the production of carbon dioxide and other greenhouse gases to facilitate the reduction of emissions into the atmosphere, requiring certain entities to disclose details about the emissions of greenhouse gases and/or the imposition of taxes or other incentives to produce and use “cleaner” energy, may increase energy costs, limit timber harvest levels, increase costs associated with disclosure related to greenhouse gases and impact our operations or our planned or future growth. Because our manufacturing operations depend on significant amounts of energy and raw materials, these initiatives could have an adverse impact on our operations and profitability. Future legislation or regulatory activity in this area remains uncertain, as does the potential impact on our business and operations.

We are committed to complying with all applicable environmental laws and regulations and intend to continue devoting significant management attention to such matters. In addition, we occasionally undertake construction projects for environmental control equipment or incur other environmental costs that extend an asset’s useful life, improve its efficiency, and/or improve the property’s marketability.

Additional information concerning environmental matters is set forth under Item 3 “Legal Proceedings”, and in “Note 12 - Commitments and Contingencies” of the Notes to the Consolidated Financial Statements included in Item 8 of this annual report on Form 10-K.

WORKFORCE AND EMPLOYEE RELATIONS

Our employees are our most important asset, and they are integral to our ability to achieve our strategic objectives. The continued success and growth of our business depends, in large part, on our ability to attract, retain, and develop a diverse population of talented and high-performing employees at all levels. We have developed key recruitment and retention strategies, objectives, and measures that we focus on as part of the overall management of LP, which will continue to support our efforts to succeed in a competitive labor market. These strategies, objectives, and measures are the basis of our workforce management framework and are advanced through the following programs, policies, and initiatives:

Workforce & Labor Relations. As of December 31, 2025, we employed approximately 4,300 employees, comprising approximately 2,800 in the United States, 800 in Canada, and 800 in South America. Approximately 3,500 employees were employed at manufacturing facilities, and approximately 1,200 employees were subject to collective bargaining agreements and/or national trade union agreements. We are committed to working collaboratively with the unions that represent some of our employees.

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Health, Safety, and Wellness. We are committed to the health, safety, and wellness of our employees. Safety is a core value at LP. We safeguard our people, projects, and reputation by maintaining a safety culture that strives to reduce risks to our employees. Our innovative safety and health processes are at the forefront of everything we do. We provide our employees, contractors, and guests with ongoing safety training to ensure that safety policies and procedures are effectively communicated, implemented, and followed. We also aim to start every meeting, every mill tour, and every morning at our manufacturing facilities with a message about safety. The success of our business is fundamentally connected to the safety and well-being of our people.

LP is committed to continual improvement of our health and safety performance. We establish internal annual targets and seek continual safety performance improvements every year. One of the metrics that we carefully track is Total Incident Rate (TIR), a common industry measure of recordable incidents per 100 employees. We have established a targeted TIR of <1.0 per year, which we believe represents industry-leading performance, and for the year ended December 31, 2025, actual TIR of 0.62 was better than our target. To further enhance our commitment to safety, we have also implemented a Serious Injury and Fatality (SIF) Prevention program and the tracking of Weighted Incident Rate (WIR). The SIF Prevention program is a proactive approach to address the most significant exposures our employees face on the job. The WIR metric reflects the severity of incidents to monitor our safety performance. The SIF Prevention program and the tracking of WIR enhance hazard recognition and employee engagement and drive our teams to evaluate controls to ensure we are incorporating improved levels of protection whenever possible. We use this data to prioritize, manage, and carefully track safety performance at all our facilities and integrate sound safety practices to make a meaningful difference in every facet of our operations.

Inclusion and Belonging. We value the diverse backgrounds, experiences, and perspectives of our employees, customers, and stakeholders, and are committed to fostering an environment where everyone feels a strong sense of belonging. This sense of belonging strengthens our ability to attract, develop, and retain top talent at all levels.

Talent and Development. We are committed to hiring exceptional talent and providing resources that support continuous career growth. We begin with talented individuals who join for a role and stay for long, rewarding careers because we invest in their development, listen to their feedback, and respond to their concerns.

Our talent development programs provide employees with the resources they need to help achieve their career goals, build management skills, and lead the Company.

Compensation and Benefits. We strive to provide competitive compensation and benefits programs to help meet the needs of our employees and offer the flexibility, inclusivity, choice and protection necessary to retain top talent.

While subject to change, our current benefit programs may include, depending on country/region and employment position, stock-based awards granted pursuant to our stock award plans, awards granted under our annual cash incentive award plan, an employee stock purchase plan, a 401(k) and profit-sharing plan or defined contribution plan, healthcare and insurance benefits, health savings and flexible spending accounts, paid time off, family medical leave, paid parental leave (maternity, bonding, adoption, and surrogacy), fertility benefits, an employee emergency support fund, tuition assistance, and scholarship programs.

We also provide our employees and their families with access to a variety of innovative, flexible, and convenient health and wellness programs. These benefits provide protection and security so employees can have peace of mind concerning events that may impact their financial well-being. In addition, we offer employees the ability to customize benefits options to meet their individual needs and the needs of their families.

Our executive management team provides oversight of our programs, policies, and initiatives focusing on workforce inclusion and belonging, talent and development, and compensation and benefits. It is our policy to fully comply with all laws (domestic and foreign) applicable to equal employment opportunity and discrimination in the workplace.

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SEGMENT AND PRICE TREND DATA

The following tables present summary data for each of the last three years relating to: (i) housing starts within the United States, (ii) our sales volumes, and (iii) our OEE performance. We consider the following items to be key performance indicators for our business because LP’s management uses these metrics to evaluate our business and trends in our industry, measure our performance, and make strategic decisions. We believe that the key performance indicators presented may provide additional perspective and insights when analyzing our core operating performance. These key performance indicators should not be considered superior to, as a substitute for, or as an alternative to, and should be considered in conjunction with the financial measures that were prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP). These measures may not be comparable to similarly titled performance indicators used by other companies.

In addition, information concerning our: (i) profit by segment; (ii) capital expenditures by segment; (iii) identifiable assets by segment; (iv) goodwill by segment; and (v) geographic area information, is included in “Note 15 - Segment Information” of the Notes to the Consolidated Financial Statements included in Item 8 of this annual report on Form 10-K.

Housing Starts

We monitor housing starts, which is an indicator of residential construction in the United States that correlates with the demand for many of our products. We believe that this is a useful measure for evaluating our results and that providing this measure should allow interested persons to more readily compare our sales volume for past and future periods to an external indicator of product demand. Other companies may present housing start data differently, and therefore, as presented by us, our housing start data may not be comparable to similarly titled indicators reported by other companies.

The following table sets forth U.S. housing starts data reported by the U.S. Census Bureau for the quarter and year ended December 31, 2025, 2024, and 2023 (amounts based upon information published through January 9, 2026, in thousands):

Year Ended December 31,

20251
2024 2023

Housing starts:

Single-Family 949 1,013 948

Multi-Family 416 354 472

1,364 1,367 1,420

1November and December 2025 housing starts have not yet been published by the U.S. Census Bureau, and therefore, we have used October 2025 housing starts as the November and December 2025 actual housing starts.

Sales Volume Information Summary

We monitor sales volumes for our products in our Siding and OSB segments, which we define as the amount of our products sold within the applicable period measured in million square feet (MMSF) on a standard 3/8" thickness basis. Evaluating sales volume by product type helps us identify and address changes in product demand, broad market factors that may affect our performance, and opportunities for future growth. It should be noted that other companies may present sales volume data differently, and therefore, as presented by us, sales volume data may not be comparable to similarly titled measures reported by other companies. We believe that sales volumes can be a useful measure for evaluating and understanding our business.

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The following table sets forth sales volumes for the year ended December 31, 2025 and 2024 (in MMSF):

Year Ended December 31,

2025 2024 2023

Siding 1,786 1,719 1,547

Total Siding sales volume 1,786 1,719 1,547

OSB - Structural Solutions 1,535 1,705 1,559

OSB - Commodity 1,540 1,680 1,512

Total OSB sales volume 3,075 3,384 3,071

Overall Equipment Effectiveness Summary

We measure OEE of each of our mills to track improvements in the utilization and productivity of our manufacturing assets. OEE is a composite metric that considers asset uptime (adjusted for capital project downtime and similar events), production rates, and finished product quality. We believe that when used in conjunction with other metrics, OEE can be a useful measure for evaluating our ability to generate profits, and that providing this measure should allow interested persons to monitor operational improvements. We use a best-in-class target across all LP sites that allows us to optimize capital investments, focus maintenance and reliability improvements, and improve overall equipment efficiency. It should be noted that other companies may present OEE data differently, and therefore, as presented by us, OEE data may not be comparable to similarly titled measures reported by other companies.

OEE for the year ended December 31, 2025 and 2024 for each of our businesses is listed below:

Year Ended December 31,

2025 2024 2023

Siding 77 % 77 % 77 %

OSB 79 % 78 % 75 %

AVAILABLE INFORMATION

We file annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements, and from time to time, other documents with the SEC. Our SEC filings are available to the public over the Internet at the SEC’s website at http://www.sec.gov.

In addition, we will make available our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act through our Internet website at http://investor.lpcorp.com under the “SEC Filings” heading of the “Financial Information” tab as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. Information contained on, or accessible through, our website is not a part of, and is not incorporated by reference into, this annual report on Form 10-K.

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