Q3 2021 BlueLinx Holdings Inc Earnings Conference Call Presentation

Third Quarter Results Conference Call

November 3, 2021

Safe Harbor Statement

This presentation contains forward-lookingstatements. Forward-looking statements include, without limitation, any statement that predicts, forecasts, indicates or implies future results, performance, liquidity

levels or achievements, and may contain the words " believe,"" anticipate,"" expect,"" estimate,"" intend,"" project," "plan," "will be, "be, "will likely continue, "continue," "will likely result" or words or phrases of

similar meaning. Forward-looking statements involve risks and uncertainties that may cause our business, strategy, or actual results to differ materially from the forward-looking statements. The forward- looking statements in this presentation include statements about our strategic imperatives and priorities, and our focus thereon; our ability to capitalize on our geographic footprint to grow our national dealer and home center customer markets; our local entrepreneurial initiatives; our focus on reducing non-essential costs and our ability to, and the potential success of, investing in resources to support strategic sales growth; our market and business outlook, including the outlook for the residential housing construction markets, and trends in wood-based commodity prices; trends in deurbanization, housing inventory and prices; trends in residential repair and remodel activity; the influence of wood-based commodity price inflation on specialty product sales; our efforts to manage commodity price volatility and the potential success thereof; and the COVID-19 pandemic and our response thereto, including statements about the potential trajectory of the pandemic and its potential effects.

Forward-looking statements in this press release are based on estimates and assumptions made by our management that, although believed by us to be reasonable, are inherently uncertain. Forward-looking statements involve risks and uncertainties that may cause our business, strategy, or actual results to differ materially from the forward-looking statements. These risks and uncertainties include those discussed in greater detail in our filings with the Securities and Exchange Commission. We operate in a changing environment in which new risks can emerge from time to time. It is not possible for management to predict all of these risks, nor can it assess the extent to which any factor, or a combination of factors, may cause our business, strategy, or actual results to differ materially from those contained in forward- looking statements. Factors that may cause these difference include, among other things: pricing and product cost variability; volumes of product sold; changes in the prices, supply, and/or demand for products that we distribute; the cyclical nature of the industry in which we operate; housing market conditions; the COVID-19 pandemic and other contagious illness outbreaks and their potential effects on our industry; effective inventory management relative to our sales volume or the prices of the products we produce; information technology security risks and business interruption risks; increases in petroleum prices; consolidation among competitors, suppliers, and customers; disintermediation risk; loss of products or key suppliers and manufacturers; our dependence on international suppliers and manufacturers for certain products; business disruptions; exposure to product liability and other claims and legal proceedings related to our business and the products we distribute; natural disasters, catastrophes, fire, or other unexpected events; successful implementation of our strategy; wage increases or work stoppages by our union employees; costs imposed by federal, state, local, and other regulations; compliance costs associated with federal, state, and local environmental protection laws; our level of indebtedness and our ability to incur additional debt to fund future needs; the risk that our cash flows and capital resources may be insufficient to service our existing or future indebtedness; the covenants of the instruments governing our indebtedness limiting the discretion of our management in operating our business; the fact that we lease many of our distribution centers, and we would still be obligated under these leases even if we close a leased distribution center; changes in our product mix; shareholder activism; potential acquisitions and the integration and completion of such acquisitions; the possibility that the value of our deferred tax assets could become impaired; changes in our expected annual effective tax rate could be volatile; the costs and liabilities related to our participation in multi-employer pension plans could increase; the possibility that we could be the subject of securities class action litigation due to stock price volatility; and changes in, or interpretation of, accounting principles. Given these risks and uncertainties, we caution you not to place undue reliance on forward-looking statements. We expressly disclaim any obligation to update or revise any forward-looking statement as a result of new information, future events or otherwise, except as required by law.

Non-GAAPFinancial Measures. BlueLinx reports its financial results in accordance with GAAP. The Company also believes that presentation of certain non-GAAP measures may be useful to investors and may provide a more complete understanding of the factors and trends affecting the business than using reported GAAP results alone. Any non-GAAP measures used herein are reconciled to their most directly comparable GAAP measures herein or in the financial tables accompanying this news release. The Company cautions that non-GAAP measures should be considered in addition to, but not as a substitute for, the Company's reported GAAP results.

Immaterial Rounding Differences. Immaterial rounding adjustments and differences may exist between slides, press releases, and previously issued presentations.

This presentation and the associated remarks made during this conference call are integrally related and are intended to be presented and understood together.

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Executive Summary

Market Update and Third Quarter 2021 Performance

Market Conditions

• Single-familyresidential housing remains strong. Q3 single- family housing starts up year over year. Favorable mortgage rates, low housing inventory and deurbanization support positive housing trends
• Commodity wood prices nearing historical averages. Framing Lumber Composite on 10/29 was $588/MBF compared to 5-year historical average of ~$500/MBF. Structural Panel Composite on 10/29 was $652/MSF compared to 5-year historical average of ~$550/MSF
• Builders' Confidence Index remains elevated. NAHB Builders'
  Confidence Index 60% above the 20-year average at 80 as of October 2021
• Remodeling activity continues to strengthen. LIRA Index and NAHB both indicate continued robust R&R momentum with LIRA reaching record levels in Q3 of this year
• Economic measures trending positively. National unemployment rate down to 4.8% in September, a 300-basis point improvement from September 2020. 30-year fixed mortgage rates continue to stay at historically low levels

Note: All comparisons versus the prior-year period unless otherwise noted

Q3 2021 BlueLinx Performance

$ Millions

• Strong Cash Flow generation. Operating Cash Flow of $104M and Free Cash Flow of $102M primarily driven by the sequential reduction in receivables
• Enhanced liquidity with continued deleveraging. Excess availability and cash increased to $352M as of quarter end; Reduced net debt by $84M, or 14%, year over year
• Double-digitsales growth. Net sales grew 11%, or $100M to $971M
• Mix shift toward higher specialty products. Specialty net sales of $641M, accounting for 66% of total net sales; Specialty gross margin +560 bps to 23.0%
• Disciplined cost controls. Maintaining strong cost discipline; SG&A lower by $4M, or 5%, year over year
• Profitability. Net income of $47M; earnings per diluted share of $4.74; Adjusted EBITDA of $79M with Adjusted EBITDA Margin of 8%

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Single-Family Housing Demand
Our business is correlated to single-family housing starts (SFHS)
		Total U.S. Single Family Housing Starts												Total U.S. Monthly Single-Family Residential Home Supply
		Housing starts in thousands(1)																		Months of inventory(2)
		2,000
• 2021 SFHS forecasted at 1.1	1,800										2021 SFHS annual estimate ~35%					14
	million units; 8% above 50-	1,600														12
										below the prior cyclical peak
	year average. Further	1,400
										achieved in 2005														10
	1,200
	growth expected over next
	1,000																															8
	two years(1)
	800												50-year average													6
		600
																																4								20-year average
		400
•	Builders' Confidence																															2
200
	remains positive; well above
	-																															0
	the 20-year average at 80							2006				2009															2021E	2022E	2023E	2024E
	2000	2001	2002	2003	2004	2005	2007	2008	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
• Average U.S. home prices	30 Year Fixed Mortgage Rates																NAHB "Builders' Confidence" Market Index
As of Sept 2021(3)																											Composite index(4)
	currently 20% higher than a
	18.0% 16.6%																													100
	year ago; double-digit																														Builders' confidence reached a 35-year high in Nov-20 and
	percent growth predicted	16.0%																															90		remains elevated
	14.0%																															80
	for full year 2021(1)	12.0%																															70
		10.0%																															60
																																50
		8.0%
																																40								20-year average
•	Low mortgage rates	6.0%		40-yearaverage
																							30
	continue to support market	4.0%																												2.9%		20
	2.0%
	demand																															10
	0.0%																															0
		1980	1982	1984	1986	1988	1990	1992	1994	1996	1998	2000	2002	2004	2006	2008	2010	2012	2014	2016	2018	2020	2022P	2024P	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021

1. Source: Historical data is U.S. Census Bureau; Forecast: John Burns Real Estate Consulting, LLC subject limitations and disclaimers - not for redistribution
2. Source: U.S. Census Bureau. The months' supply is the ratio of houses for sale to houses sold. This statistic provides an indication of the size of the for-sale inventory in relation to the number of houses currently being sold. The months' supply indicates how long the current for-sale inventory would last given the current sales rate if no additional new houses were built.
3. Source: Historical data is Freddie Mac; Forecast: John Burns Real Estate Consulting, LLC subject limitations and disclaimers - not for redistribution.
4. Source: NAHB. The NAHB Housing Market Index (HMI) is based on a monthly survey of NAHB members designed to take the pulse of the single-family housing market. The survey asks respondents to rate market conditions for the sale of new homes at the present time and in the next six months as well as the traffic of prospective buyers of new homes.

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Residential Repair & Remodel Activity Remains Healthy

Elevated Repair & Remodel activity continues

Total Installed Base of U.S. Homes, Including	U.S. Private Residential Construction Put-In-Place
Renter and Owner-Occupied Homes	(CPP)

•	Annual U.S. Homes	Homes in millions(1)		Dollars in millions(2)
	installed base forecast					$1,400
	expects continued				129	$1,200
	increases through 2025;				128	$1,000
	positive for both residential				127	$800
	construction and repair				126	$600
				125
	and remodel end markets				$400
				124
				$200
					123
• CPP and remodeling data				$0
			122	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019 2020	2021
	continues to indicate			120	121
	elevating R&R activity;			119		LIRA Remodeling Activity Index
	LIRA expected to further		117 118	118
	increase and remain	116 117			TTM Moving Total - Dollars in Billions(3)
	elevated through Q3 2022				$450
					$400
• Strong existing home sales,					$350
				$300
	home price appreciation,
					$250
	and deurbanization are
					$200
	fueling DIY activity
					$150
						$100
						$50
						$0			1Q03			1Q06			1Q09	1Q10			1Q13			1Q16	1Q17	1Q18	1Q19	1Q20	1Q21	1Q22 (P)
	(1) Source: HIRL Research; updated annually					1Q00	1Q01	1Q02	1Q04	1Q05	1Q07	1Q08	1Q11	1Q12	1Q14	1Q15
	(2) Source: Historical data is from the U.S. Census Bureau; The Value of Construction Put in Place Survey (VIP) provides monthly estimates of the total dollar value of construction work done in the U.S. The survey covers
	construction work done each month on new structures or improvements to existing structures for private and public sectors.
	(3) Source: Joint Center for Housing Studies at Harvard University. The Leading Indicator of Remodeling Activity (LIRA) provides a short-term outlook of national home improvement and repair spending to owner-occupied
	homes. The indicator, measured as an annual rate-of-change of its components, is designed to project the annual rate of change in spending for the current quarter and subsequent four quarters, and is intended to
	help identify future turning points in the business cycle of the home improvement and repair industry.

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