# Builders FirstSource (BLDR) Financial Model

Free Excel 3-statement financial model and company analysis for Builders FirstSource.

- Canonical: https://finamodel.com/companies/builders-firstsource
- Industry: Building Products
- Downloadable model: Yes
- Excel download: https://finamodel.com/company-models/BLDR.xlsx

## Model Purpose

This model provides a comprehensive equity valuation and scenario planning tool for Builders FirstSource (BLDR) to assess how fluctuations in US housing starts, commodity lumber prices, and aggressive share repurchases impact free cash flow generation and intrinsic value.

## Company Overview

Builders FirstSource is the largest US supplier of building products, prefabricated components, and value-added services to the professional market for new residential construction and repair and remodelling. The company operates a vertically integrated business model that combines distribution with manufacturing of structural components like roof and floor trusses.
- **Business Segments (Product Categories):** Value-Added Products (Manufactured Products, Windows, Doors & Millwork) (~50% of gross profit), Specialized Building Products & Services (~25%), and Lumber & Lumber Sheet Goods (~25%).
- **Key Geographies:** 100% United States, with significant exposure to high-growth Sunbelt states.
- **Business Model Type:** Asset-heavy distribution and light manufacturing, highly sensitive to macro housing cycles and commodity prices.
- **Competitive Position:** Number one market share in a highly fragmented US building materials distribution industry, competing primarily with 84 Lumber, US LBM, and local independents.
- **Recent Major Events:** The company has executed a massive share repurchase programme, retiring nearly 50% of its outstanding shares since 2021, and continues to acquire regional players to expand its value-added product footprint.

## Revenue Deep Dive



### Value-Added Products (Manufactured Products, Windows, Doors & Millwork)

- **Segment Name:** Value-Added Products
- **Revenue Driver Formula:** US Single-Family Housing Starts x BLDR Market Share x Value-Added Content per Home
- **Historical Growth Rate:** 8% to 15% CAGR (heavily influenced by M&A and penetration rates).
- **Key Growth Levers and Headwinds:** Driven by the structural shortage of construction labour, which forces builders to outsource framing to BLDR's prefabricated truss and wall panel facilities. Headwinds include high mortgage rates suppressing housing starts.
- **Pricing Dynamics:** Value-based pricing. Less sensitive to commodity swings than raw lumber, allowing for margin expansion.
- **Revenue Recognition Notes:** Recognised at the point of delivery to the job site.
- **Seasonality:** Strongest in Q2 and Q3 during peak summer building season; weakest in Q1 and Q4 due to winter weather disrupting construction.

### Specialized Building Products & Services

- **Segment Name:** Specialized Building Products & Services
- **Revenue Driver Formula:** Total Housing Starts x Product Volume x Average Selling Price
- **Historical Growth Rate:** 5% to 10% CAGR.
- **Key Growth Levers and Headwinds:** Tied to exterior and interior finishing phases of home construction.
- **Pricing Dynamics:** Stable pricing with periodic manufacturer price increases passed through to builders.
- **Revenue Recognition Notes:** Point in time upon delivery.
- **Seasonality:** Lags housing starts by 60 to 90 days as these products are installed later in the construction cycle.

### Lumber & Lumber Sheet Goods

- **Segment Name:** Lumber & Lumber Sheet Goods
- **Revenue Driver Formula:** Volume (mbf) x Random Lengths Commodity Lumber Price
- **Historical Growth Rate:** Highly volatile (-25% to +50% YoY) entirely dependent on commodity cycles.
- **Key Growth Levers and Headwinds:** Driven by raw commodity prices (e.g., $365 to $385 per thousand board feet expected in 2026) and base framing activity.
- **Pricing Dynamics:** Spot pricing based on the Random Lengths framing lumber composite index.
- **Revenue Recognition Notes:** Point in time upon delivery.
- **Seasonality:** Tracks peak framing season in spring and summer.

## Cost Structure



### Variable Costs / COGS

- **Line-by-line breakdown:** Direct materials (raw lumber, OSB, hardware), direct labour (for truss and panel manufacturing), and inbound freight.
- **Gross margin range:** 28.0% to 35.0% (2025 actual was 30.4%, down from peak pandemic levels but structurally higher than the historical 25% due to a shift toward value-added products).
- **Key input costs and commodity exposures:** Framing lumber and oriented strand board (OSB).
- **How COGS scales with revenue:** Lumber COGS scales linearly with commodity prices, but value-added COGS has operating leverage due to fixed manufacturing overhead in truss plants.

### Operating Expenses

- **R&D:** Negligible; the company invests in digital tools (e.g., Paradigm) but it is capitalised or sits in SG&A.
- **SG&A:** Delivery costs (fuel, truck maintenance, driver wages), sales commissions, facility rent, and corporate overhead. Typically runs 18% to 22% of revenue.
- **Depreciation & Amortisation:** Approximately $550M to $600M annually, heavily weighted toward amortisation of acquired intangible assets from historical M&A.
- **Stock-Based Compensation:** Approximately 0.5% to 1.0% of revenue.
- **Restructuring / one-time charges:** Frequent integration costs related to bolt-on acquisitions.

### Margin Profile

- **Gross margin:** 28.5% to 30.0% target for 2026.
- **EBITDA margin:** 8.2% (Q4 2025) to 14.0% (peak). Target for 2026 is 8.8% to 10.8%.
- **Operating margin:** 5.0% to 10.0%.
- **Margin trend:** Compressing from pandemic peaks due to commodity deflation and lower housing starts, but stabilising at a structurally higher floor than pre-2020.

## Balance Sheet Structure

- **Total assets:** Approximately $10B to $11B.
- **Key asset categories:** Inventory (lumber yards), Accounts Receivable (builder credit lines), PP&E (manufacturing plants, fleet), and Goodwill.
- **Goodwill & intangibles:** Represents over 40% of total assets due to the 2021 BMC merger and continuous bolt-on acquisitions.
- **Working capital profile:**
  - **Days Sales Outstanding (DSO):** 35 to 45 days.
  - **Days Inventory Outstanding (DIO):** 45 to 55 days.
  - **Days Payable Outstanding (DPO):** 30 to 40 days.
  - **Net working capital as % of revenue:** 8% to 12%.
  - **Working capital dynamic:** Positive working capital. The company consumes cash when commodity prices spike (inventory costs rise) and releases cash when commodity prices fall.
- **PP&E:** Delivery fleet, material handling equipment, and manufacturing facilities. Useful lives range from 3 to 15 years.
- **Right-of-use assets:** Material, as the company leases many of its distribution yards and facilities.

## Capital Expenditure & Investment

- **Capex as % of revenue:** 2.0% to 3.0% (guided to $350M to $450M for recent years).
- **Maintenance capex vs. growth capex:** Approximately 40% maintenance (fleet replacement) and 60% growth (new truss plants, automation equipment).
- **Major capex programmes:** Automation of truss manufacturing and expansion of digital platforms.
- **Capitalised software:** Material due to investments in the digital homebuilding platform.
- **M&A pattern:** Serial bolt-on acquirer targeting regional value-added manufacturers and distributors.
- **Typical acquisition multiple paid:** 6.0x to 8.0x post-synergy EBITDA.

## Debt & Capital Structure

- **Total debt:** Approximately $4.3B net debt as of December 2025.
- **Debt/EBITDA ratio:** 2.7x net debt to LTM Adjusted EBITDA as of Q4 2025.
- **Credit rating:** Ba1 / BB+ (crossover/high yield).
- **Key debt instruments:** Asset-based lending (ABL) revolving credit facility, senior secured term loans, and senior unsecured notes.
- **Maturity profile:** Well-laddered with major bond maturities typically 5 to 8 years out.
- **Interest rate profile:** Mix of fixed-rate bonds and floating-rate term loans.
- **Covenants:** Standard fixed charge coverage ratios on the ABL facility.
- **Share repurchase programme:** Extremely active. The company repurchased $1.5B in 2024 and $0.4B in 2025, reducing total shares outstanding by nearly 50% since 2021.
- **Dividend policy:** No dividend; all return of capital is executed via share repurchases.

## Cash Flow Characteristics

- **Operating cash flow conversion:** Highly variable due to working capital swings tied to commodity lumber prices.
- **Free cash flow margin:** 3.0% to 8.0%. 2026 FCF guidance is approximately $0.5 billion.
- **Major non-cash items:** High D&A (specifically acquired intangibles amortisation) and stock-based compensation.
- **Working capital cash flow impact:** Significant source of cash during commodity deflation; significant use of cash during commodity inflation.
- **Capex intensity:** Low (asset-light relative to heavy manufacturing), allowing for strong FCF generation.
- **Cash tax rate:** 23.0% to 25.0%, closely tracking the statutory rate.

## Sheet Structure

1. **Assumptions**: Hardcoded inputs for macro drivers (housing starts, lumber prices), margin targets, and capital allocation rules.
2. **Scenarios**: Toggles for Base, Bull, and Bear cases based on US housing starts and Random Lengths lumber pricing.
3. **Revenue Build**: Detailed volume and pricing build for Value-Added Products, Specialized Building Products, and Lumber & Lumber Sheet Goods.
4. **Income Statement**: Consolidated P&L down to Net Income and EPS (tracking the rapidly declining share count).
5. **Working Capital Schedule**: Receivables, Inventory, and Payables driven by segment-specific DSO, DIO, and DPO.
6. **Balance Sheet**: Standard balancing sheet with specific lines for Goodwill, Intangibles, and Right-of-Use Assets.
7. **Cash Flow Statement**: Indirect method, explicitly breaking out working capital changes driven by commodity prices.
8. **Debt & Interest Schedule**: Tranches for ABL Revolver, Term Loans, and Senior Notes, with circular interest calculations.
9. **Shareholders Equity & Buybacks**: Schedule tracking retained earnings and the aggressive share repurchase programme.
10. **DCF Valuation**: Unlevered free cash flow build, WACC calculation, and terminal value based on mid-cycle EBITDA multiples.

## Key Financial Relationships

1. `Lumber Revenue = Base Volume x (1 + Housing Starts Growth) x (Current Period Commodity Price / Prior Period Commodity Price)`
2. `Value-Added Revenue = Base Volume x (1 + Housing Starts Growth) x (1 + Value-Added Penetration Growth Rate)`
3. `Total Net Sales = Lumber Revenue + Value-Added Revenue + Specialized Products Revenue`
4. `Gross Profit = (Lumber Revenue x Lumber Margin) + (Value-Added Revenue x Value-Added Margin) + (Specialized Revenue x Specialized Margin)`
5. `Adjusted EBITDA = Gross Profit - SG&A (excluding stock-based comp and M&A integration costs)`
6. `Inventory Balance = (Total COGS / 365) x DIO`
7. `Accounts Receivable = (Total Net Sales / 365) x DSO`
8. `Free Cash Flow = Cash from Operations - Capital Expenditures`
9. `Share Repurchases = Free Cash Flow x Target Payout Percentage`
10. `Ending Shares Outstanding = Beginning Shares Outstanding - (Share Repurchases / Average Share Price)`
11. `Interest Expense = (Average Term Loan Balance x Floating Rate) + (Senior Notes x Fixed Rate)`
12. `Net Debt = Total Debt - Cash & Cash Equivalents`

## Cross-Sheet Dependencies

- The **Assumptions** sheet feeds the macro drivers (lumber prices, housing starts) directly into the **Revenue Build**.
- The **Revenue Build** feeds the top line and COGS of the **Income Statement**.
- Revenue and COGS feed the **Working Capital Schedule** to calculate changes in NWC.
- Net Income from the **Income Statement** and NWC changes feed the **Cash Flow Statement**.
- Free Cash Flow from the **Cash Flow Statement** dictates the cash available for the **Shareholders Equity & Buybacks** sheet.
- The **Shareholders Equity & Buybacks** sheet calculates the new share count, which feeds back to the **Income Statement** for EPS calculations.
- The **Debt & Interest Schedule** calculates interest expense, creating a circular reference with the **Income Statement** and **Cash Flow Statement**.

## Sign Convention

- **Income Statement:** Revenues are positive. Expenses (COGS, SG&A, Interest, Taxes) are positive. Margins and Net Income are calculated as Revenue minus Expenses.
- **Balance Sheet:** Assets are positive. Liabilities and Equity are positive.
- **Cash Flow Statement:** Net Income is positive. Non-cash add-backs are positive. Increases in assets are negative (outflows). Increases in liabilities are positive (inflows). Capex and Share Repurchases are negative.
- **Debt Schedule:** Debt drawdowns are positive. Debt repayments are negative.

## Things Most Likely to Go Wrong

- **Commodity Price Disconnect:** Modelling lumber revenue growth without adjusting COGS proportionally will result in wildly inaccurate gross profit dollars. Lumber is largely a pass-through cost.
- **Working Capital Swings:** Failing to link inventory costs to commodity price assumptions will break the cash flow statement. High lumber prices consume massive amounts of cash.
- **Share Count Stagnation:** The builder might hold the share count flat. BLDR retires millions of shares annually; EPS will be severely understated if buybacks are not modelled dynamically.
- **Amortisation Distortion:** BLDR has massive acquired intangibles. Operating margin will look artificially low if amortisation is not properly separated from core SG&A.
- **EBITDA Reconciliation:** Adjusted EBITDA excludes stock-based compensation and M&A costs. The model must bridge GAAP Net Income to Adjusted EBITDA accurately.
- **M&A Revenue Padding:** Historical revenue includes acquired growth. Projecting future growth using historical CAGRs without separating organic from acquired growth will overstate the base business.
- **Interest Circularity:** The ABL revolver acts as the cash sweep. If the circularity between interest expense and the revolver balance is not managed with a toggle, the model will crash.
- **Tax Rate Assumptions:** Using the statutory rate instead of the guided effective cash tax rate (23% to 25%) will misstate free cash flow.

## Validation Checks

- "Gross margin must remain between 28.0% and 32.0%; flag if outside this band as it violates management guidance."
- "Adjusted EBITDA margin should be in the 8.5% to 11.5% range based on 2026 guidance."
- "Net Debt / LTM Adjusted EBITDA must not exceed 3.0x; flag if leverage breaches this threshold."
- "Capex as a percentage of revenue should strictly run between 2.0% and 3.0%."
- "Free Cash Flow must equal approximately $500M in the 2026 base case scenario."
- "Balance sheet must balance: Total Assets = Total Liabilities + Equity in every period."
- "The share count must decrease year-over-year if Free Cash Flow is positive and the buyback toggle is active."
- "Effective tax rate should remain between 23.0% and 25.0%."

## Key Assumptions (Default Values)

| Assumption | Default Value | Unit | Rationale |
|---|---|---|---|
| 2026 Total Net Sales | 15,300 | $ Millions | Midpoint of 2026 guidance ($14.8B to $15.8B). |
| Commodity Lumber Price | 375 | $/mbf | Midpoint of 2026 guidance ($365 to $385/mbf). |
| Gross Margin | 29.25 | % | Midpoint of 2026 guidance (28.5% to 30.0%). |
| Adjusted EBITDA Margin | 9.8 | % | Midpoint of 2026 guidance (8.8% to 10.8%). |
| SG&A as % of Revenue | 20.5 | % | Based on historical averages and recent operating leverage loss. |
| D&A Expense | 575 | $ Millions | Midpoint of recent management guidance ($550M to $600M). |
| Days Sales Outstanding (DSO) | 40 | Days | Historical average based on builder credit terms. |
| Days Inventory Outstanding (DIO) | 50 | Days | Historical average required to stock distribution yards. |
| Days Payable Outstanding (DPO) | 35 | Days | Historical average for vendor payment terms. |
| Capital Expenditures | 400 | $ Millions | Midpoint of typical guidance ($350M to $450M). |
| Effective Tax Rate | 24.0 | % | Midpoint of 2025/2026 guidance (23.0% to 25.0%). |
| Share Repurchase Allocation | 75 | % of FCF | Management's historical aggressive capital return policy. |
| Average Interest Rate on Debt | 6.5 | % | Blended rate of term loans and senior unsecured notes. |
| WACC | 9.5 | % | Reflects cyclicality and leverage profile of the business. |
| Terminal Growth Rate | 2.0 | % | Long-term US housing market growth expectation. |

## Data Sources & Benchmarks

- **Filings:** SEC EDGAR for BLDR 10-K and 10-Q filings; bldr.com (Investor Relations) for earnings presentations and financial supplements.
- **Key Peers:** 84 Lumber (private, but useful for industry context), US LBM (private), Boise Cascade (BCC), BlueLinx (BXC), and Beacon Roofing Supply (BECN).
- **Industry Data:** US Census Bureau / HUD for monthly Housing Starts data; National Association of Home Builders (NAHB) for builder sentiment.
- **Commodity Data:** Random Lengths Framing Lumber Composite Price for spot lumber pricing.
- **Consensus Estimates:** S&P Capital IQ or Bloomberg for forward revenue and EBITDA estimates.

## Sources

- Builders FirstSource Q4 and Full-Year 2025 Earnings Release (February 17, 2026).
- Builders FirstSource Q3 2025 Earnings Release (October 30, 2025).
- Builders FirstSource 2025 Annual Report on Form 10-K.
- Builders FirstSource Corporate Presentations (2025 and 2026).

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## Frequently asked questions

### What does Builders FirstSource (BLDR) do?

Builders FirstSource is the largest US supplier of building products, prefabricated components, and value-added services for new residential construction and repair and remodeling. They operate a vertically integrated business model, combining distribution with manufacturing of structural components like roof and floor trusses.

### What are the primary revenue drivers for Builders FirstSource?

Builders FirstSource's revenue is highly sensitive to macro housing cycles, particularly US housing starts, and commodity lumber prices. The company's asset-heavy distribution and light manufacturing model has significant exposure to high-growth Sunbelt states.

### What is Builders FirstSource's typical capital expenditure as a percentage of revenue?

Builders FirstSource typically guides capital expenditure as 2.0% to 3.0% of revenue, with recent years seeing $350M to $450M. Approximately 40% of this is for maintenance, such as fleet replacement, while 60% is for growth initiatives like new truss plants and automation equipment.

### What is the purpose of the Builders FirstSource (BLDR) financial model?

The Builders FirstSource financial model serves as a comprehensive equity valuation and scenario planning tool. It helps assess how fluctuations in US housing starts, commodity lumber prices, and aggressive share repurchases impact the company's free cash flow generation and intrinsic value.

### Can I download an Excel financial model for Builders FirstSource (BLDR)?

Yes, a downloadable Excel financial model for Builders FirstSource (BLDR) is available. This model provides a forecast horizon from FY2026 to FY2030 and is designed for general corporate analysis.

### How does Builders FirstSource's working capital profile affect its cash flow?

Builders FirstSource maintains a positive working capital profile, typically 8% to 12% of revenue. This dynamic means the company consumes cash when commodity prices for inventory rise and releases cash when commodity prices fall.

[Interactive forecast calculator](https://finamodel.com/companies/builders-firstsource/forecast)
