Herman Miller, Inc. Investor Presentation Third Quarter FY2013

NASDAQ: MLHR

This information contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act, as amended, that are based on management’s beliefs, assumptions, current expectations, estimates, and projections about the office furniture industry, the economy, and the company itself. Words like “anticipates,” “believes,” “confident,” “estimates,” “expects,” “forecasts,” likely,” “plans,” “projects,” “should,” variations of such words, and similar expressions identify such forward-looking statements.

These statements do not guarantee future performance and involve certain risks, uncertainties, and assumptions that are difficult to predict with regard to timing, extent, likelihood, and degree of occurrence. These risks include, without limitation, the success of our growth strategy, employment and general economic conditions, the pace of economic recovery in the U.S, and in our International markets, the increase in white-collar employment, the willingness of customers to undertake capital expenditures, the types of products purchased by customers, competitive-pricing pressures, the availability and pricing of raw materials, our reliance on a limited number of suppliers, currency fluctuations, the ability to increase prices to absorb the additional costs of raw materials, the financial strength of our dealers and the financial strength of our customers, the mix of our products purchased by customers, our ability to attract and retain key executives and other qualified employees, our ability to continue to make product innovations, the success of newly introduced products, our ability to serve all of our markets, possible acquisitions, divestitures or alliances, the pace and level of government procurement, the outcome of pending litigation or governmental audits or investigations, political risk in the markets we serve, and other risks identified in our filings with the Securities and Exchange Commission.

Therefore, actual results and outcomes may materially differ from what we express or forecast. Furthermore, Herman Miller, Inc., undertakes no obligation to update, amend or clarify forward-looking statements.

2

Forward Looking Statements

Inspiring designs to help people do great things

1923 Traditional Residential

1930’s – 40’s Modern Furniture

1950’s – 60’s Authored Design

1970’s – 80’s Systems Furniture

1990’s Ergonomic seating and storage

2000’s – Today Herman Miller Performance System

Future Shift Strategy

4

$1,214

$371

$168

Segment Sales Q3’13 YTD Annualized ($ millions)

North America

Non-North America

Specialty & Consumer

North American Furniture Solutions Non-N.A. Furniture Solutions Specialty & Consumer

5

Estimated Market Size ($ billions)

N.A. Contract

European Contract

Emerging Markets

Health/Educ/Hosp.

Consumer/SMB/Textiles

$7 - $9 (3)

$9 (2)

$4 (3)

$5 (3)

$9.5 (1)

Source: (1) The Business and Institutional Furniture Manufacturers Association; (2) 2012 CSIL Market Research; (3) Company estimate 6

Leading economic indicators include: – Corporate profitability – Service sector employment levels – Nonresidential construction activity – Office vacancy rates – Architectural billing activity (ABI) – CEO & small business confidence

$0

$2,000

$4,000

$6,000

$8,000

$10,000

$12,000

$14,000

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

2008

2010

2012

North American Office Furniture Orders ($ millions)

100

105

110

115

120

Jan-

03Se

p-03

May

-04

Jan-

05Se

p-05

May

-06

Jan-

07Se

p-07

May

-08

Jan-

09Se

p-09

May

-10

Jan-

11Se

p-11

May

-12

Jan-

13

Service Sector Employment (million workers)

404244464850525456

Mar

-11

May

-11

Jul-1

1

Sep-

11

Nov

-11

Jan-

12

Mar

-12

May

-12

Jul-1

2

Sep-

12

Nov

-12

Jan-

13

U.S. Architecture Billings Index

Category 2013 2014

Nonresidential Total +5.0% +7.2%

Commercial +8.6% +10.7%

Office +7.3% +11.4%

AIA Consensus Construction Forecast (% YOY Growth)

Source: U.S. Bureau of Labor Statistics Source: The American Institute of Architects Source: The American Institute of Architects

Source: The Business and Institutional Furniture Manufacturers Association

7

2013

For

ecas

t

$1,630

$1,319

$1,649 $1,724 $1,753

$0

$200

$400

$600

$800

$1,000

$1,200

$1,400

$1,600

$1,800

$2,000

1

Net Sales ($ millions)

$92 $99

$89 $90

$103

$0

$20

$40

$60

$80

$100

$120

Operating Cash Flow ($ millions)

9.3%

5.2%

6.7%

8.3% 8.0%

3%

4%

5%

6%

7%

8%

9%

10%

FY09 FY10 FY11 FY12 FY13(ann.)

Adj. Operating Margin(1)

% Net Sales

(1) Represents a Non-GAAP Measure, see Appendix for reconciliation.

FY09 FY10 FY11 FY12 FY13 (ann.)

FY09 FY10 FY11 FY12 FY13 (ann.)

8

$193

$135 $142

$172

$198

$0

$50

$100

$150

$200

$250

Cash Position ($ millions)

$306

$281

$150

$107 $94

$0

$50

$100

$150

$200

$250

$300

$350

Net Debt (1)

($ millions)

$19

$5 $5 $5

$29

$0

$5

$10

$15

$20

$25

$30

$35

1

Dividends Paid ($ millions)

(1) Defined as interest bearing debt and GAAP unfunded pension liabilities less cash; (2) Represents the most recently announced quarterly dividend rate annualized

FY09 FY10 FY11 FY12 FY13 (Q3)

FY09 FY10 FY11 FY12 FY13 (Q3)

FY09 FY10 FY11 FY12 Curr. Rate

(2)

9

We are shifting our business model to focus on: 1. Increasing the size of our addressable market 2. Faster growing segments driven by demographics 3. Higher margin products

Office Everywhere

NA-centric Global

Industry Industry + Consumer

Contract Omni Channel

11

New Products

51.2 45.7 40.5 45.8 52.7

2.5%

2.8%

3.1%

2.8%

3.1%

0.0%

0.5%

1.0%

1.5%

2.0%

2.5%

3.0%

3.5%

$0

$10

$20

$30

$40

$50

$60

2008 2009 2010 2011 2012

We consistently exceed our goal of deriving >20% of revenue from new products introduced within the past 4 years

Design & Research Expenditures ($ millions; % sales)

12

Customer Segments

New Products

13

Customer Segments

Specialty & Consumer

New Products

14

Customer Segments

New Products

Global Footprint

Specialty & Consumer

1. POSH Acquisition

3. Targeted Investments

15

2. Regional Product Development

New Products

Customer Segments

Global Footprint

Brand & Channel

Specialty & Consumer

16

Contract Magazine Brand Report 2012(1)

#1 Herman Miller #2 Knoll #3 Steelcase

(1) Contract Magazine Brand Report, December 2012,“When thinking about brands that inspire you to create your best commercial design solutions, what are the top three companies that come to mind?”

$990 $1,225 $1,219

$1,756

$1,430

$223

$290 $347

$540

$106

$134 $158

$220

$0

$500

$1,000

$1,500

$2,000

$2,500

FY10 Actual FY11 Actual FY12 Actual FY13 Consensus FY15 Target

S&CNon-NANorth America

Net Sales ($ millions)

FY12-FY15 CAGR GOALS BY SEGMENT:

N. America… 5% Non-N.A… 16% S&C… 12%

$1,319

$1,649 $1,724

$2,190

$1,756 (1)

(1) Average based on estimates reported by Raymond James & Associates (3/22/13),Sidoti & Company LLC (3/21/13), and Longbow Research (3/22/13) 17

$114

$154 $184

$272

$0

$50

$100

$150

$200

$250

$300

FY10 Actual FY11 Actual FY12 Actual FY15 Target

Adjusted EBITDA(1)

($ millions)

(1) Represents a Non-GAAP Measure, see Appendix for reconciliation. 18

22%

29% 16%

18%

8%

7%

Key Investments (FY13-FY15) Estimated Total $240M – $260M (% Allocation)

Global Footprint

New Product Commercialization

Mfg. Capability and Upgrades

Brand Marketing

Channel and Sales Structure

Information Technology

19

Our strategy will require targeted investments through FY15

5.2%

6.7%

8.3% 8.0% (2)

10.0%

2%

3%

4%

5%

6%

7%

8%

9%

10%

11%

FY10 Actual FY11 Actual FY12 Actual FY13 Consensus FY15 Target

Adjusted Consolidated Operating Income(1)

(% sales)

(1) Represents a Non-GAAP Measure, see Appendix for reconciliation. (2) Average based on estimates reported by Raymond James & Associates (3/22/13), Sidoti & Company LLC (3/21/13), and Longbow Research (3/22/13)

Targeted Improvement Bridge

FY12 Actual 8.3%

FY15 Target 10%+

≈1%

≈0.4%

≈0.3%

Volume Leverage

Performance Improvements

Product Mix

20

$0

$100

$200

$300

$400

$500

Q4 FY12 Q1 FY13 Q2 FY13 Q3 FY13

$421 $450 $442

$424 $444 $452 $476

$382

Quarterly Net Sales & Orders ($ millions)

Net Sales

Orders

$115 $115

$130

$117

$105

$110

$115

$120

$125

$130

$135

Quarterly Operating Expenses ($ millions) Q4 FY12

Q1 FY13

Q2 FY13

Q3 FY13

35.7% 33.3% 33.6% 34.1%

8.4% 8.4% 8.4% 7.4%

0%

10%

20%

30%

40%

50%

Q4 FY12 Q1 FY13 Q2 FY13 Q3 FY13

Gross Margin and Adj. Operating Income % (1)

(% net sales) GrossMargin %

Adj.OperatingIncome %

Q3 net sales increased 6% from the prior year; orders also up 6%.

Favorable product & channel mix and strong labor management helped drive Q3 gross margin above Company expectations coming into the quarter. Gross margin in the third quarter reflects a 20 basis-point reduction from legacy pension expenses.

Operating expenses in Q3 and Q2 include $3 million and $18 million, respectively, of expenses relating to legacy domestic pension plans.

EPS in Q3 totaled $0.28 per share, or $0.32(1) adjusted for legacy pension expenses recognized in the period. This adjusted earnings performance represents a 23% increase over the same quarter in FY 2012.

(1) Represents a Non-GAAP Measure, see Appendix for reconciliation. 22

Appendix

Recent Operating Performance

$8

$29

$19

$30

$0

$5

$10

$15

$20

$25

$30

$35

Quarterly Cash Flow from Operations ($ millions) Q4 FY12

Q1 FY13

Q2 FY13

Q3 FY13

1.4 1.4 1.5 1.4

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Rolling 4Qtr Leverage Ratio (Debt to EBITDA(1)) Q4 FY12

Q1 FY13

Q2 FY13

Q3 FY13

10.5 10.5 10.5 10.9

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

Rolling 4Qtr Coverage Ratio (EBITDA(1) to Interest) Q4 FY12

Q1 FY13

Q2 FY13

Q3 FY13

Q3 Ending Cash and Investments of $208 million.

LT Debt maturity schedule:

– PPN ($50M) due 2015 – PPN ($150M) due 2018 – PPN ($50M) due 2021

CAPEX totaled $10 million in Q3; $39 million YTD. Total FY13 CAPEX estimated to range between $50 million and $55 million.

Dividends paid in Q3 ($5 million); recently announced increase to $0.125 per share, per quarter.

(1) Represents a Non-GAAP Measure, see Appendix for reconciliation. 23

Bank Covenant < 3.5

Bank Covenant > 4.0

Appendix

Debt & Liquidity Profile

Appendix

Reconciliation of Non-GAAP Measures

This presentation contains Adjusted Operating Earnings as a percentage of net sales (Adjusted Operating Earnings %), Adjusted EBITDA, Adjusted EBITDA ratios, and Adjusted Earnings per Share, all of which constitute non-GAAP financial measures. Each of these financial measures is calculated by excluding items the Company believes are not indicative of its ongoing operating performance. The Company presents these non-GAAP financial measures because it considers them to be important supplemental indicators of financial performance and believes them to be useful in analyzing ongoing results from operations. These non-GAAP financial measures are not measures of financial performance under GAAP and should not be considered alternatives to GAAP. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation or as a substitute for analysis of the Company’s results as reported under GAAP. In addition, you should be aware that in the future the Company may incur expenses similar to the adjustments presented.

24

Appendix

Reconciliation of Non-GAAP Measures

25

Table IHerman Miller, Inc.Reconciliation of Non-GAAP MeasuresAdjusted Operating Earnings %($ millions; percents represent % of net sales); (unaudited)

FY09 FY10 FY11 FY12YTD Q3'13

(ann.) Q4 FY12 Q1 FY13 Q2 FY13 Q3 FY13Net Sales 1,630.0$ 1,318.8$ 1,649.2$ 1,724.1$ 1,753.3$ 420.7$ 449.7$ 441.8$ 423.5$

Operating EarningsOperating Earnings (GAAP) 122.8$ 53.6$ 123.3$ 137.6$ 105.6$ 29.8$ 34.3$ 17.5$ 27.4$ Operating Earnings (%) 7.5% 4.1% 7.5% 8.0% 6.0% 7.1% 7.6% 4.0% 6.5%Add: Restructuring Expense 28.4 16.7 3.0 5.4 1.6 5.4 0.5 0.7 - Add: Debt Tender Offer Settlement Charges - 4.5 - - - - - - - Less: Adjustments to Nemschoff Contingent Consideration - (6.4) (15.1) - - - - - - Add: Post-Tranisition Pension NPBC/Settlements - - - - 32.7 - 3.1 18.8 4.0 Adj. Operating Earnings (non-GAAP) 151.2$ 68.4$ 111.2$ 143.0$ 139.9$ 35.2$ 37.9$ 37.0$ 31.4$ Adj. Operating Earnings (%) 9.3% 5.2% 6.7% 8.3% 8.0% 8.4% 8.4% 8.4% 7.4%

Appendix

Reconciliation of Non-GAAP Measures

26

Table IIHerman Miller, Inc.Reconciliation of Non-GAAP MeasuresAdjusted EBITDA and Adjusted EBITDA Ratios($ in millions); (unaudited)

Adjusted EBITDA RatiosTrailing 4-Quarter Period EndedQ4 FY12 Q1 FY13 Q2 FY13 Q3 FY13 2010 2011 2012

Earnings Before Income Taxes (EBT) 119.5 112.7 90.2 91.8 34.8$ 102.5$ 119.5 Add: Depreciation 34.4 34.4 34.3 34.4 39.6 36.3 34.4 Amortization 2.9 2.9 3.0 3.1 3.0 2.8 2.9 Interest 17.5 17.3 16.9 17.0 21.7 19.9 17.5 Other Adjustments (1) 9.7 13.7 33.6 38.9 15.2 (7.3) 9.7 Adjusted EBITDA 184.0$ 181.0$ 178.0$ 185.2$ 114.3$ 154.2$ 184.0$

Total Debt, End of Trailing Period 259.8$ 257.7$ 260.1$ 257.7$

Rolling 4-Quarter Debt-to-Adj. EBITDA 1.4 1.4 1.5 1.4

Rolling 4-Quarter Adj. EBITDA-to-Interest 10.5 10.5 10.5 10.9

(1) "Other Adjustments" include, as applicable in the period, non-cash stock based compensation expenses, charges associated w ith business restructuring initiatives, changes in the value of the contingent consideration components of the Nemschoff purchase price, pro-forma income statement adjustments associated w ith Nemschoff, as permitted under lender covenant arrangements, and charges and credits associated w ith the company's planned termination of its domestic defined benefit pension programs.

Fiscal YearAdjusted EBITDA

Appendix

Reconciliation of Non-GAAP Measures

27

Table IIIHerman Miller, Inc.Reconciliation of Non-GAAP MeasuresAdjusted Earnings per Share($ per share); (unaudited)

Quarter Ended 3/2/13

Earnings per Share - Diluted 0.28$ Add: Legacy Pension Expenses 0.04 Adjusted Earnings per Share - Diluted 0.32$