2012-1 AMENDMENT TO THE STEELCASE INC. EXECUTIVE SUPPLEMENTAL RETIREMENT PLAN AS AMENDED AND RESTATED EFFECTIVEAS OF MARCH 27, 2003

Exhibit 10.18

2012-1 AMENDMENT

TO THE

STEELCASE INC.

EXECUTIVE SUPPLEMENTAL RETIREMENT PLAN

AS AMENDED AND RESTATED EFFECTIVE AS OF MARCH 27, 2003

This 2012-1 Amendment to the STEELCASE INC. EXECUTIVE SUPPLEMENTAL RETIREMENT PLAN (the “Plan”) is adopted by Steelcase Inc. (the “Company”). The amendment is effective as of February 25, 2012.

Pursuant to Section 7.1 of the Plan, the Company amends the Plan as follows:

A.

Section 2 is amended and replaced in its entirety with the following:

SECTION 2

DEFINITIONS

2.1 “Active Participant” means a Participant whose active Plan participation has not yet terminated pursuant to Section 4.2 (Termination of Participation).

2.2 “Beneficiary” means the individual, trust, or other entity designated by a Participant to receive any amounts payable with respect to the Participant under the Plan after the Participant’s death. A Participant may designate or change a Beneficiary by filing a signed designation with the Committee on a form approved by the Committee. A Participant’s Will, Trust or other estate planning document is not effective for this purpose. If a designation has not been completed properly and filed with the Committee prior to the Participant’s death, or is ineffective for any other reason, the Beneficiary shall be the Participant’s Surviving Spouse.

2.3 “Committee” means the committee established to administer the Plan, the members of which are the same individuals as the members of the administrative committee of the Steelcase Inc. Retirement Plan.

2.4 “Company” means Steelcase Inc.

2.6 “Competition” means direct or indirect participation in the manufacture, design or distribution of any products of the same type as those of the Company or any subdivision, subsidiary, or affiliate of the Company (collectively the “Company” for purposes of this Section 2.6), including, but not limited to, office furniture, office systems or architectural products, or the

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providing of any related services, for or on behalf of any person or entity other than the Company and its authorized dealers, at any location within or without the United States of America. It is intended that this definition shall be enforced to the fullest extent permitted by law. If any part of this definition shall be construed to be invalid or unenforceable, in whole or in part, then such definition shall be construed in a manner so as to permit its enforceability to the fullest extent permitted by law.

2.7 “Early Retirement” means termination of employment, for any reason other than death, at any time on or after the first date on which the sum of the Participant’s age and years of service equals or exceeds 80 (as determined for purposes of the Steelcase Inc. Retirement Plan) and before the Participant reaches his or her Normal Retirement Age.

2.8 “Early Retirement Date” means the first Payment Date after the Participant’s Early Retirement.

2.9 “Employee” means any employee of the Company, excluding independent contractors, leased employees, and self-employed individuals.

2.10 “15-Year Benefit” means the benefit described in Section 6.1(b) (15-Year Benefit).

2.11 “Final Average Earnings” means the average of the Participant’s base salary for the three consecutive calendar years prior to his or her retirement or death. Base salary includes the gross amount payable to the Participant prior to any elective, pre-tax salary deferrals. If base salary is paid in any currency other than U.S. Dollars, the base salary shall be converted into an equivalent amount in U.S. Dollars on the basis of any reasonable method as may be determined by the Committee in its sole discretion.

2.12 “5-Year Benefit” means the benefit described in Section 6.1(a)(5-Year Benefit).

2.13 “Normal Retirement” means termination of employment on or after the Participant attains Normal Retirement Age.

2.14 “Normal Retirement Age” means age 65.

2.15 “Normal Retirement Date” means the first Payment Date after the Participant’s Normal Retirement.

2.16 “Participant” means an Employee designated by the Compensation Committee pursuant to Section 4.1 (Participation) who is a member of executive management or other key employee. The term also includes former Active Participants with respect to whom benefits of the Plan remain payable.

2.17 “Payment Date” means a date during the first 90 days of the fiscal year of the Company (as in effect on the date hereof) following the fiscal year during which the applicable event occurs.

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2.18 “Spouse or Surviving Spouse” means the person to whom the Participant is legally married on the date benefit payments are scheduled to begin to the Participant. The legal existence of a spousal relationship shall be governed by the law of the State of Michigan. For purposes of determining benefit recipients upon the death of the Participant, the Surviving Spouse shall be the person to whom the Participant is legally married on the date of the Participant’s death. If the Participant and Spouse die under circumstances that make the order of their deaths uncertain, it shall be presumed for purposes of this Plan that the Participant survived the Spouse.

2.19 “Total Disability” means that, by reason of any medically determinable physical or mental impairment that can be expected to result in death or can be expected to last for a continuous period of not less than twelve months, the individual is unable to engage in any substantial gainful activity or is receiving income replacement benefits under an accident and health plan covering employees of the Company for a period of not less than three months. The determination of Total Disability shall be made by the Committee through procedures established for that purpose and on the basis of reasonable medical examination. The cost of any medical examination shall be an expense of administration of the Plan.

B.

Section 6 is amended and replaced in its entirety with the following:

SECTION 6

BENEFITS

6.1 Benefit Amounts. Plan benefits shall consist of the following:

6.2 Payment of Benefits. Except as otherwise provided in Section 6.3 (Forfeiture of Benefits) or 6.4 (Section 409A), both the 5-Year Benefit and the 15-Year Benefit shall be paid to a Participant as follows:

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6.3 Forfeiture of Benefits. A Participant’s right to any 5-Year Benefit and 15-Year Benefit amounts remaining unpaid under this Plan shall be forfeited upon occurrence of any of the following events:

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6.4 Section 409A. The intent of the parties is that payments under this Plan comply with Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), to the extent subject thereto, and accordingly, to the maximum extent permitted, this Plan be interpreted and administered to be in compliance therewith. Notwithstanding anything contained herein to the contrary, the Participant shall not be considered to have terminated employment with the Company for purposes of this Agreement unless the Participant would be considered to have incurred a “separation from service” from the Company within the meaning of Section 409A of the Code. Each amount to be paid under this Plan shall be construed as a separate identified payment for purposes of Section 409A of the Code, and any payments described in this Plan that are due within the “short term deferral period” as defined in Section 409A of the Code shall not be treated as deferred compensation unless applicable law requires otherwise. Without limiting the foregoing and notwithstanding anything contained herein to the contrary, to the extent required in order to avoid accelerated taxation and/or tax penalties under Section 409A of the Code, amounts that would otherwise be payable pursuant to this Plan during the six-month period immediately following the Participant’s separation from service shall instead be paid on the first business day after the date that is six months following the Participant’s separation from service (or death, if earlier). This Plan may be amended in any respect deemed by the Board of Directors of the Company or the Compensation Committee to be necessary in order to preserve compliance with Section 409A of the Code.

C.

Section 7 is amended and replaced in its entirety with the following:

SECTION 7

AMENDMENT AND TERMINATION

7.1 Amendment. This Plan may be amended in any manner at any time by either the Compensation Committee or the Board of Directors of Steelcase Inc. An amendment changing the amount of benefits shall comply with the following:

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7.2 Termination. Either the Compensation Committee or the Board of Directors of Steelcase Inc. may terminate the Plan at any time and for any reason. Upon termination of the Plan, the Compensation Committee or the Board of Directors of Steelcase Inc. shall specify the extent to which benefits of Active Participants shall be preserved or terminated. Upon termination of the Plan, all benefits that are being paid or that are payable at a future date to any Participant who died, or retired under the Normal Retirement, Early Retirement or Total Disability provisions of the Plan, prior to the Plan’s termination, shall continue to be paid in accordance with the terms of the Plan in effect at the time of termination.

D.

In all other respects, the Plan remains unchanged.

IN WITNESS OF WHICH, the Company executes this 2012-1 Amendment to the Plan.

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