Exhibit 10.3

EMPLOYMENT AGREEMENT

BETWEEN

KARL G. GLASSMAN AND

LEGGETT & PLATT, INCORPORATED

EMPLOYMENT AGREEMENT

This Employment Agreement (the “Agreement”) is made as of March 1, 2013 (the “Effective Date”), between Leggett & Platt, Incorporated, a Missouri corporation (the “Company”), and Karl G. Glassman (the “Executive”).

RECITALS

The Company desires that the Executive remain in the employment of the Company. Accordingly, the Compensation Committee (the “Compensation Committee”) of the Board of Directors (the “Board”) has recommended the execution of this Agreement and the Board has authorized the execution of the same. This Agreement supersedes the Employment Agreement between the Company and the Executive dated May 7, 2009.

AGREEMENT

NOW THEREFORE, for good and valuable consideration, the Company and the Executive agree as follows:

1. Employment

The Company hereby confirms its employment of the Executive as its President and Chief Operating Officer, and the Executive hereby confirms his employment in that capacity.

The Executive’s employment under this Agreement is subject to the terms and conditions set out below and will be carried out in Carthage, Missouri, at the Company’s principal executive offices. However, the Executive acknowledges that the nature of his employment may require reasonable domestic and international travel from time to time.

2. Term

2.1 Term

The term of this Agreement shall commence on the Effective Date and shall end on the date of the Annual Meeting of Shareholders in 2017 (the “Term”), unless terminated earlier in accordance with the provisions of this Agreement.

2.2 Early Termination

This Agreement may be terminated prior to expiration of the Term only by reason of any of the following:

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3. Duties and Authority

The Executive shall devote his full business time to the affairs of the Company. However, this shall not be deemed to prevent the Executive from devoting such time (which shall not be substantial in the aggregate) to personal business interests that do not unreasonably interfere with the performance of the Executive’s duties hereunder.

The Executive shall use his best efforts, skills and abilities to promote the Company’s interests. The Executive shall serve as director if nominated by the Nominating & Corporate Governance Committee (“N&CG Committee”) and if so elected by the shareholders of the Company; provided, however, the N&CG Committee will not nominate the Executive if such nomination would violate the rules or regulations of the Securities and Exchange Commission or the New York Stock Exchange. The Executive shall perform such duties at the President and COO level or above assigned to him by the Board or the Chief Executive Officer. The Executive shall report to the Chief Executive Officer of the Company.

4. Compensation

4.1 Base Salary

The Executive shall be paid a base salary at an annual rate of $745,000. Beginning on or about April 1, 2013 and in each successive year during the Term, the Compensation Committee shall appraise the Executive’s performance during the previous calendar year, taking into account such factors as it deems appropriate. As a result of such appraisal, the then annual base salary of the Executive may be increased (but shall not be decreased) by such amount as the Compensation Committee determines in its discretion; provided, however, a reduction in the Executive’s base salary may be permitted to align with a broad-based salary reduction at the Company applicable for such year.

The Executive’s base salary shall be paid in equal bi-weekly installments, unless the Executive elects to defer all or a portion of the base salary under one or more programs offered by the Company.

All salary increases under this section will be made as of the beginning of the first payroll period in which the Company’s other executive officers generally receive merit related annual salary adjustments.

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4.2 Annual Cash Bonus

During the Term, the Executive shall be entitled to earn a cash bonus computed in accordance with the Key Officers Incentive Plan, as amended from time to time, or such other annual incentive plan as the Compensation Committee may establish for which the Executive is eligible (the “Incentive Plan”). The amount of the Executive’s bonus shall be determined by applying an award formula approved by the Compensation Committee to a percentage of Executive’s annual salary on December 31 of each year (“Target Percentage”). The Executive’s target percentage is 90%. The Compensation Committee shall be entitled to amend or supplement the Incentive Plan, the award formula, and the Target Percentage from time to time.

If the Executive’s employment under this Agreement is terminated before December 31 of any year, the Executive shall receive a prorated bonus for the year of termination when bonuses are paid under the terms of the Incentive Plan but not before 6 months after the Executive’s termination of employment if and to the extent required to avoid a tax under Section 409A of the Internal Revenue Code (the “Code”). This prorated bonus shall bear the same ratio to the actual bonus the Executive would have earned with respect to the year under the Incentive Plan as the number of days this Agreement is in force during such year bears to 365.

4.3 Restricted Stock Unit Grant

The Executive shall be granted a restricted stock unit award in the amount of 45,000 shares (the “RSUs”), which RSUs shall vest 25% on the Effective Date and 25% each on the first, second and third anniversaries of the Effective Date. The vesting of any tranche of the RSUs shall be conditioned upon the Executive’s continued employment by the Company through the applicable anniversary date, except for the accelerated vesting provided in Section 8.2 and under the terms of the RSU agreement; provided, however that such accelerated vesting shall not accelerate the date that shares of Company stock are issued pursuant to the RSU award. The Executive will not have the rights of a shareholder, including voting and dividend rights, with respect to the RSUs until the underlying shares are issued. The RSUs shall be issued pursuant to the Company’s Flexible Stock Plan.

4.4 Vacations; Other Benefits

The Executive shall be entitled to a reasonable annual vacation (not less than an aggregate of four weeks in any calendar year) with full pay, benefits and allowances.

In addition to the salary, bonus and other payments to be made under this Agreement, the Executive shall be entitled to participate (to the extent legally permitted) in any insurance, pension, profit sharing, stock bonus, stock option, performance stock or stock unit, restricted stock or stock unit, stock purchase, incentive program or other benefit plan of the Company now existing or hereafter adopted for the benefit of executive officers of the Company or the employees of the Company generally.

At the Company’s expense, the Company shall provide office space, secretarial assistance, supplies and equipment fully adequate to enable the Executive to perform the services

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contemplated by this Agreement and at least comparable to that being provided to the Executive on the date hereof.

The Company shall provide the Executive with appropriate perquisites at least equal to such perquisites as are generally made available from time to time to the Company’s other senior executive officers.

In addition to the payments provided for in this Section 4 and elsewhere in this Agreement, the Company may from time to time pay the Executive as a salary increase, a bonus or otherwise, such additional amounts as the Compensation Committee shall, in its discretion, determine.

4.5 Clawbacks

Notwithstanding anything in this Agreement, the Executive acknowledges and agrees that the benefits and compensation the Company has agreed to provide under this Agreement are subject to the terms and conditions of the Company’s plans (as amended from time to time), including, without limitation, the Flexible Stock Plan, Performance Stock Unit Awards, Profitable Growth Incentive Awards, the Key Officer Incentive Plan, Stock Option Grants, and the Severance Benefit Agreement, which may include clawbacks requiring the forfeiture or repayment of benefits and compensation under certain conditions.

5. Expenses

The Company shall pay or reimburse the Executive for all transportation, lodging, meals and related expenses incurred by the Executive on business trips away from the Company’s principal office and for all other business and entertainment expenses reasonably incurred by him in connection with the business of the Company and its subsidiaries or affiliates, in accordance with the Company’s travel, entertainment and reimbursement guidelines.

6. Disability

6.1 Payments During a Period of Disability

The Executive shall be deemed to have a “Total Disability” if he is unable to perform substantially all of the material duties under this Agreement for a continuous period of six or more months due to illness or injury. During the continuance of any Total Disability, the Company shall continue to provide the Executive’s cash compensation and other benefits under this Agreement until the date that is 14 months from the first day of the period that culminated in the Total Disability (“Disability Termination Date”).

6.2 Termination following Disability

If the Executive continues to have a Total Disability on the Disability Termination Date, his employment under this Agreement shall be terminated on the Disability Termination Date. If the Executive’s employment is terminated pursuant to this Section, that will not be deemed to be a termination of employment by the Company without Cause. The Board’s appointment of an interim President and COO during any period in which the Executive is

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unable to perform his duties due to illness or injury shall not be deemed a breach of this Agreement or a termination by the Company without Cause, provided that the Executive is permitted to resume the role of President and COO within a reasonable time after recovering from the disability.

6.3 Offset Payments

The Company’s obligation to continue the Executive’s cash compensation from the date of a Total Disability to the Disability Termination Date shall be reduced by (a) all amounts paid to Executive under disability income insurance policies made available to the Executive by the Company and (b) by all amounts received by the Executive from Social Security disability benefits.

7. Executive’s Option to Terminate Agreement

Not later than six months after the occurrence of any of the following events, the Executive may elect to terminate his employment under this Agreement by sending notice of termination to the Company:

The Executive’s employment obligations under this Agreement shall terminate on the date of termination specified in the Executive’s notice to the Company, which date must be within 60 days of the date of the notice.

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8. Termination by the Company

The Company may terminate the Executive’s employment pursuant to this Agreement by discharging the Executive for Cause. The term “Cause” shall be limited to the following events:

The Board, at any time and without Cause, may relieve the Executive of his duties under this Agreement immediately upon written notice to the Executive. If the Executive’s employment is terminated by the Board without Cause, then, except if he is eligible for

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severance benefits under the Severance Benefit Agreement as a result of a termination of employment pursuant to Section 3.1 thereof, he shall:

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Notwithstanding any other provision of this Agreement, the Executive shall receive payments and benefits under this Section (other than the accelerated vesting provided in subsection (c)) only if the Executive timely executes, returns to the Company, and does not revoke a release and covenant not to sue agreement, in a form reasonably acceptable to the Executive and the Company’s legal counsel. The Company shall provide such agreement to the Executive in sufficient time so that if the Executive executes and returns the agreement to the Company within the time period permitted by the Company, the revocation period will expire before the payments and benefits in this Section are required to commence. The taxable payments and taxable benefits in Section 8.2(a), (e), and (f) shall commence 6 months after the Executive’s termination of employment, at which date he shall receive in a lump sum all installments and benefits which accrued from the date of his termination of employment. The payments in Section 8.2(b) shall be paid when bonuses are required to be paid under the terms of the Key Officers Incentive Plan (or successor plan or additional plan) but not before 6 months after the Executive’s termination of employment if and to the extent required to avoid a tax under Code Section 409A. Any payments arising as a result of Section 8.2(e) shall be made when required pursuant to the requirements of the applicable option, stock or stock unit agreement but not before 6 months after the Executive’s termination of employment if and to the extent required to avoid a tax under Code Section 409A. Any employer subsidy associated with medical plan coverage pursuant to Section 8.2(f) that is not taxable to the Executive shall commence within 60 days following termination of employment and shall include any subsidy accrued from the date of termination of employment.

9. Effect of Termination

The Company shall have no further financial obligations under this Agreement to the Executive or his estate after his termination of employment, except as provided in Section 8, and except for base salary accrued to the effective date of termination, annual cash bonus, if any, payable pursuant to Section 4.2, benefits that are payable under the terms of any of the Company’s plans, reimbursement for expenses pursuant to Section 5 accrued to the date of termination of employment, and medical plan coverage as provided in Section 11.

10. Confidential Information

The Executive shall be bound by the Employee Confidentiality and Invention Agreement between the Company and the Executive dated May 14, 2009, as it may be amended.

11. Non-Compete

During the Noncompete Period, the Employee will not (either individually or through any entity in which he may be an employee, agent, consultant, director, shareholder, partner or otherwise affiliated), in any part of the Territory (i) engage in any Competitive Activities, (ii) design, develop, manufacture, assemble, process distribute, market or sell any Covered Products, (iii) solicit orders from or seek to do business with any customer of the Company relating to Covered Products or Competitive Activities, or (iv) influence or attempt to influence any

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employee, representative or advisor of the Company, or its subsidiaries and affiliates, to terminate their employment or relationship with the Company.

The “Noncompete Period” will begin on the date of this Agreement and end on the later of (i) two years after the Employee ceases to be an employee of the Company or (ii) the expiration of the Term, provided that the Noncompete Period shall cease if the Company materially breaches its payment obligations pursuant to Section 8.2 of this Agreement or Section 3 of the Severance Benefit Agreement.

“Territory” means all of the United States and all other parts of the world to which the Company, or its subsidiaries and affiliates, has sold any Covered Products. “Competitive Activities” means any manufacture, sale, distribution, engineering, design, promotion or other activity which competes with the business of the Company, or its subsidiaries and affiliates. “Covered Products” means any product which is of the type of, or which is competitive with or a substitute for, the products manufactured, assembled, distributed, marketed, sold or under development by the Company, or its subsidiaries and affiliates.

Company’s subsidiaries and affiliates (i) are third party beneficiaries of this Section, (ii) shall have all rights and remedies allowed in law or equity (including injunctive relief) to prevent further violations, and (iii) may also seek damages resulting from any violation. If this Section is found to be unenforceable, then the appropriate court may reform this Section so the restrictions are reasonable and enforceable.

During the portion of the Noncompete Period commencing after the Executive’s termination of employment, the Company will provide medical plan coverage to Executive, his spouse, and his eligible dependents that is the same as the coverage offered by the Company to similarly situated active employees at the same cost as is charged to similarly situated active employees; provided, however, that the Company may require the Executive to elect coverage pursuant to COBRA as a condition to continuing such coverage, if and to the extent the Executive is eligible for COBRA, and to the extent that the benefits would be taxable to the Executive or the Company is unable under the terms of its health plan to continue such coverage, the Company shall in lieu of such coverage pay the Executive a taxable cash amount on a monthly basis that equals the amount necessary to purchase substantially equivalent coverage. The timing of the payments and benefits shall be the same as the timing specified in the last paragraph of Section 8.2.

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12. Code Section 409A

The entitlement to a series of installment payments under this Agreement that is subject to Code Section 409A(a)(2) shall be treated as the right to a series of separate payments for purposes of Section 409A. The Executive shall be deemed to have terminated employment for purposes of Section 8.2 and the last paragraph of Section 11 only if he has incurred a termination of employment that constitutes a “separation from service” within the meaning of Code Section 409A.

13. Nonassignability

This Agreement and the benefits hereunder are personal to the Company and are not assignable by it; provided, however, this Agreement and the benefits hereunder may be assigned by the Company to any person acquiring all or substantially all of the assets of the Company or to any corporation into which the Company may be merged or consolidated. In the event of an assignment of this Agreement to any person acquiring all or substantially all of the assets of the Company or to any corporation into which the Company may be merged or consolidated, the title, responsibilities and duties assigned to the Executive by such successor person or corporation shall be the title, responsibilities and duties of a senior executive officer of such successor person or corporation.

The provisions of this Agreement shall be binding on and inure to the benefit of the Executive, his executors and administrators, but the Executive may not assign this Agreement.

14. Miscellaneous

14.1 Waivers

No waiver by either party of any breach or nonperformance of any provision of this Agreement shall be deemed to be a waiver of any preceding or succeeding breach or nonperformance of the same or any other provision hereof.

All notices, waivers, designations or other communications (collectively “notices”) that either party is required or permitted to give hereunder shall be in writing and delivered as follows, subject to the right of either party at any time to designate a different location for the delivery of notices:

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14.3 Survival of Provisions

Sections 10 and 11 shall survive the expiration or termination of this Agreement, as shall all other provisions hereof which provide for or contemplate performance by either the Executive or the Company following the termination hereof.

14.4 Enforceability

The invalidity or unenforceability of any provisions of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement, which shall remain in full force and effect.

14.5 Entire Agreement

This Agreement embodies the entire agreement between the parties hereto relating to the subject matter hereof and supersedes all prior oral or written agreements relating to the subject matter hereof, including the employment agreement dated May 10, 2006, but it does not supersede the Severance Benefit Agreement.

14.6 Governing Law

This Agreement shall be governed by and construed in accordance with the internal laws of the State of Missouri. The parties agree that any appropriate state or federal court having jurisdiction over Carthage, Missouri shall have jurisdiction of any case or controversy arising under or in connection with this Agreement and shall be a proper forum in which to adjudicate such case or controversy. The parties consent to the jurisdiction of such courts.

IN WITNESS WHEREOF, the Company and the Executive have signed this Agreement as of the day and year first above written.

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