Long Pitch on Louisiana-Pacific (NYSE: LPX)

The Pitch

Louisiana-Pacific Corp (LPX) is the only scaled manufacturer of engineered-wood siding in NA. In FY25, LPX did $2.7bn in revenue at a 16% adj. EBITDA margin, where LPX’s NA siding segment accounted for 33% of volume but 62% of revenue (at 26% adj. EBITDA margin). Siding is essentially “what goes on the outside of your house” and is used for both aesthetic and protective purposes. LPX’s siding ($946/MSF ASP) primarily targets the single-family (SF) housing market, where competitive alternatives include fiber cement siding ($1056/MSF), vinyl siding (~$700/MSF), stucco, and brick. Siding demand is regionally-dependent, with the majority of LPX’s market share concentrated in the Midwest and the Northeast. Vinyl is entrenched in the Northeast and Midwest and fiber cement in the South and West. LPX also has two other business lines: manufacturing of commodity oriented strand board (OSB) and LP South America (LPSA), which accounted for 30% and 8% of revenue in FY25, respectively. LPSA is self-sustaining and OSB acts as LPX’s “cash cow”, but is entirely dependent on commodity OSB prices. I model OSB forward using mid-cycle ASP ($259/MSF) and capacity utilization (75%) and LPSA flat at FY25 levels, assuming no growth, in-line with management’s long term strategy of shifting away from commoditized markets. Building products manufacturing is naturally capital intensive, allowing LPX to benefit from high operating leverage, with incremental EBITDA margins on Siding between 40-50%. ~50% of siding sales come from new residential construction, and the rest come from repair and remodel (R&R) and sheds.

A reversion in the housing market would act as a major tailwind for LPX. Assuming a normalization to 1,200K SF starts by FY30 (4.8% CAGR), LPX would benefit from both reignited demand and operating leverage, which I estimate will grow siding revenue at a 7.5% CAGR and siding EBITDA margin by 575bps. With the exception of the COVID pandemic, LPX’s siding volume has been highly correlated with SF starts, with an average Volume (mm sqft) / SF Starts (000s) ratio of 1.56x (ranging from 1.36x–1.69x). I assigned a 1.50x multiple to SF starts through the forecast period.

LPX has managed to consistently grow above the housing and siding markets, having grown volume at a 7.4% CAGR and revenue at a 12.8% CAGR in the last 2 years (vs. Hardie’s -3.9% and 1.9%, respectively). Management has been successful in aggressively taking market share from both vinyl and fiber cement. Up from low-to-mid single digits a decade ago, LPX has 10% share of a $10bn domestic TAM; JHX controls 20% with fiber cement, and vinyl and other materials account for the rest. Given its price point, LPX’s engineered wood siding primarily competes for share on higher-value houses ($400k+) against fiber cement and high-end vinyl (cheaper homes use more affordable vinyl). I think LPX will be able to maintain its market share, maintain its pricing power, and continue taking share from vinyl.

Hardie is currently the largest player in the sub-vertical that LPX competes in: it aggressively takes price by positioning itself as a premium product and sells to 24/25 of the largest builders. Despite this, LPX has successfully outperformed and captured market share in the last few years. Engineered wood benefits from favorable installation economics1: it’s less fragile, takes less time to install, and is easier to handle compared to Hardie’s fiber cement. Management states 10% total cost advantage compared to fiber cement from this, which has allowed LPX to capture incremental market share from Hardie during a time of construction slowdown and margin-constrained builders. However, I do not believe continued share capture from fiber cement is sustainable2, especially given a housing market normalization. I view the biggest and most likely share gain opportunity as the higher-end vinyl market, with management guiding to 0.5–1% capture of market share on an annual basis. I think LPX siding will maintain market share and continue to win over higher-end vinyl for several reasons going forward: (1) management has begun bundling OSB and Siding sales and has aggressively expanded Siding S&M efforts, which has worked well with big builders (LPX signed a partnership with Lennar in 2024). (2) Vinyl has the most regional overlap with regions that already use engineered wood (73% of SF starts in Northeast3, 50-70% Midwest). (3) Expert calls confirm consumer interest is shifting towards hardboard siding (fiber cement, wood) over vinyl given premium appeal: “If you go back to the '90s, only the highest end houses had granite countertops. Everybody else had laminate because laminate was what was available and affordable for cheap. In this case, I think that is the parallel to hardboard siding versus vinyl.” I also believe LPX’s role as the sole engineered wood manufacturer is relatively protected for 3 reasons: (1) economies of scale from the enormous fixed costs from engineering, R&D, and manufacturing, creating “winner takes all” economics (previous competitor KWP manufacturing forced out of business, JHX is also the sole fiber cement creator at scale), (2) branding is impactful at the end-user level and is attributable to JHX’s success, (3) LPX has entrenched relationships with large builders, distributors, and contractors, which are difficult to replicate from scratch. However, I view market share capture as difficult to achieve, which is why I see it as incremental to upside rather than being a primary lever.

Assuming a normalization to pre-GFC SF starts (1200k by FY30), and slight mid-cycle multiple expansion (10.0x NTM EBITDA/18.0x NTM EPS vs. 8.6x/16.8x historical), which I believe is justified given the mix shift away from commodity OSB, I arrive at a FY29 PT of $120, representing 58% upside / 12% IRR. However, I assume no share gain expansion (keeping Volume/Starts multiplier in line with historicals), which I believe to be conservative.

Potential risks include (1) overly-delayed or no reversion to pre-GFC starts, (2) asymmetric distribution in SF starts compared to historicals, particularly if concentrated in regions LPX does not serve or in lower-end homes that use vinyl, (3) major negative price shock to OSB that impairs enterprise margin.

1 Rule of thumb for on-the-wall cost – “If it's a dollar for vinyl, it's $1.50 for fiber cement, and maybe $1.35 or $1.40 for engineered wood.” (Former National Account Leader at James Hardie 10/8/25)

2 (1) Many HOAs require the use of Hardie siding, 66% of SF starts in 2024 were built in an HOA, (2) Hardie is entrenched at the mid-cap builder and consumer level from its decades of aggressive advertising and brand-building, (3) Hardie’s scale is unmatched (3bn+ in capacity, in 80% of the top 200 builders, 24/25 largest builders, many with exclusivity agreements), (4) fiber cement is fire resistant unlike engineered wood, constraining LPX in markets with strict fire codes.

3 Vinyl has been strong given recent price-constraints for home-owners and builders, but has experienced major share declines in the LT: collective vinyl market share has to 26% of new home starts vs. 40% in early 2000s. Most US siding was originally vinyl (cheap, quick), but technological evolution led to the creation of more effective fiber cement and engineered wood siding.

Post-Mortem & Reflection

Coming soon