Exhibit 3.1

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

ARMSTRONG FLOORING, INC.

Pursuant to Sections 228, 242 and 245 of the

General Corporation Law of the State of Delaware

Armstrong Flooring, Inc. (the “Corporation”), a corporation organized and existing under the General Corporation Law of the State of Delaware (the “GCL”), does hereby certify as follows:

(1) The name of the Corporation is Armstrong Flooring, Inc. The Corporation was originally incorporated under the name Armstrong Flooring, Inc. The original certificate of incorporation of the Corporation was filed with the office of the Secretary of State of the State of Delaware on June 1, 2015.

(2) This Amended and Restated Certificate of Incorporation was duly adopted by the Board of the Corporation (the “Board”) and by the sole stockholder of the Corporation in accordance with Sections 228, 242 and 245 of the GCL.

(3) This Amended and Restated Certificate of Incorporation restates and integrates and further amends the certificate of incorporation of the Corporation, as heretofore amended or supplemented.

(4) Upon the filing (the “Effective Time”) of this Amended and Restated Certificate of Incorporation pursuant to the GCL, each share of the Corporation’s common stock, $0.01 par value per share, issued and outstanding immediately prior to the Effective Time (the “Old Common Stock”) shall be reclassified as and changed into Two Hundred Seventy-Seven Thousand Three Hundred

Eighty-Seven and Seventy-Nine Hundredths (277,387.79) shares of validly issued, fully paid, and non-assessable Common Stock authorized by subparagraph (a) of Article FOURTH of this Amended and Restated Certificate of Incorporation (totaling Twenty-Seven Million Seven Hundred Thirty-Eight Thousand Seven Hundred Seventy-Nine (27,738,779) shares of Common Stock), without any action by the holder thereof (the “Reclassification”). Each certificate that theretofore represented a share or shares of Old Common Stock shall thereafter represent that number of shares of Common Stock into which the share or shares of Old Common Stock represented by such certificate shall have been reclassified.

(5) The text of the Certificate of Incorporation is amended and restated in its entirety as follows:

FIRST: The name of the Corporation is Armstrong Flooring, Inc. (the “Corporation”).

SECOND: The address of the registered office of the Corporation in the State of Delaware is 2711 Centerville Rd., Suite 400, Wilmington, County of New Castle, 19808. The name of its registered agent at that address is Corporation Service Company.

THIRD: The purpose of the Corporation is to engage in any lawful act or activity for which a corporation may be organized under the General Corporation Law of the State of Delaware (the “GCL”).

FOURTH: (a) Authorized Capital Stock. The total number of shares of stock which the Corporation shall have authority to issue is One Hundred Fifteen Million (115,000,000) shares of capital stock, consisting of (i) One Hundred

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Million (100,000,000) shares of common stock, par value $0.0001 per share (the “Common Stock”), and (ii) Fifteen Million (15,000,000) shares of preferred stock, par value $0.0001 per share (the “Preferred Stock”).

(b) Common Stock. The powers, preferences and rights, and the qualifications, limitations and restrictions, of the Common Stock are as follows:

(1) Voting. Except as otherwise expressly required by law or provided in this Amended and Restated Certificate of Incorporation, and subject to any voting rights provided to holders of Preferred Stock at any time outstanding, the holders of any outstanding shares of Common Stock shall vote together as a single class on all matters with respect to which stockholders are entitled to vote under applicable law, this Amended and Restated Certificate of Incorporation, the By-Laws of the Corporation or as otherwise duly called for by the Corporation. At each annual or special meeting of stockholders, each holder of record of shares of Common Stock on the relevant record date shall be entitled to cast one vote in person or by proxy for each share of the Common Stock standing in such holder’s name on the stock transfer records of the Corporation.

(2) No Cumulative Voting. The holders of shares of Common Stock shall not have cumulative voting rights.

(3) Dividends; Stock Splits. Subject to the rights of the holders of Preferred Stock, and subject to any other provisions of this Amended and Restated Certificate of Incorporation, as it may be amended from time to time, holders of shares of Common Stock shall be entitled to receive such dividends and other

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distributions in cash, stock or property of the Corporation when, as and if declared thereon by the Board from time to time out of assets or funds of the Corporation legally available therefor.

(4) Liquidation, Dissolution, etc. In the event of any liquidation, dissolution or winding up (either voluntary or involuntary) of the Corporation, the holders of shares of Common Stock shall be entitled to receive the assets and funds of the Corporation available for distribution after payments to creditors and to the holders of any Preferred Stock of the Corporation that may at the time be outstanding, in proportion to the number of shares held by them, respectively, without regard to class.

(5) No Preemptive or Subscription Rights. No holder of shares of Common Stock shall be entitled to preemptive or subscription rights.

(c) Preferred Stock. The Board is hereby expressly authorized to provide for the issuance of all or any shares of the Preferred Stock in one or more classes or series, and to fix for each such class or series such voting powers, full or limited, or no voting powers, and such designations, preferences and relative, participating, optional or other special rights and such qualifications, limitations or restrictions thereof, as shall be stated and expressed in the resolution or resolutions adopted by the Board providing for the issuance of such class or series, including, without limitation, the authority to provide that any such class or series may be (i) subject to redemption at such time or times and at such price or prices; (ii) entitled to receive dividends (which may be cumulative or non-cumulative) at such rates, on such conditions, and at such times, and payable in preference to, or in such relation to, the

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dividends payable on any other class or classes or any other series; (iii) entitled to such rights upon the dissolution of, or upon any distribution of the assets of, the Corporation; or (iv) convertible into, or exchangeable for, shares of any other class or classes of stock, or of any other series of the same or any other class or classes of stock, of the Corporation at such price or prices or at such rates of exchange and with such adjustments; all as may be stated in such resolution or resolutions.

(d) Power to Sell and Purchase Shares. Subject to the requirements of applicable law, the Corporation shall have the power to issue and sell all or any part of any shares of any class of stock herein or hereafter authorized to such persons, and for such consideration, as the Board shall from time to time, in its discretion, determine, whether or not greater consideration could be received upon the issue or sale of the same number of shares of another class, and as otherwise permitted by law. Subject to the requirements of applicable law, the Corporation shall have the power to purchase any shares of any class of stock herein or hereafter authorized from such persons, and for such consideration, as the Board shall from time to time, in its discretion, determine, whether or not less consideration could be paid upon the purchase of the same number of shares of another class, and as otherwise permitted by law.

FIFTH: The following provisions are inserted for the management of the business and the conduct of the affairs of the Corporation, and for further definition, limitation and regulation of the powers of the Corporation and of its directors and stockholders.

(a) The business and affairs of the Corporation shall be managed by or under the direction of the Board.

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(b) The Board shall consist of not less than seven (7) nor more than twelve (12) members, the exact number of which shall be fixed from time to time by resolution adopted by the affirmative vote of a majority of the entire board of Directors.

(c) Classified Board.

Until the Corporation’s annual meeting of stockholders in 2019 (each annual meeting of stockholders an “Annual Meeting”), the Board shall be classified pursuant to Section 141(d) of the GCL and the directors serving thereon shall be divided into three classes, designated Class I, Class II and Class III. Following the 2019 Annual Meeting, all directors shall stand for election annually. Each class of directors serving on the Board shall consist, as nearly as may be possible, of one-third of the total number of directors constituting the entire Board. The initial division of the Board into classes shall be made by the decision of the affirmative vote of a majority of the entire Board. The initial term of the Class I directors shall terminate on the date of the 2017 Annual Meeting; the initial term of the Class II directors shall terminate on the date of the 2018 Annual Meeting; and the initial term of the Class III directors shall terminate on the date of the 2019 Annual Meeting. At the 2017 Annual Meeting, the successors to the class of directors whose term expires at that meeting shall be elected to hold office for a one-year term expiring at the 2018 Annual Meeting; at the 2018 Annual Meeting, the successors to the class of directors whose term expires at that meeting shall be elected to hold office for a one-year term expiring at the 2019 Annual Meeting; and at the 2019 Annual Meeting and each Annual Meeting thereafter, all directors shall be elected for a one-year term expiring at

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the next Annual Meeting. From and after the 2019 Annual Meeting, the Board shall no longer be classified under Section 141(d) of the GCL and directors shall no longer be divided into classes.

(d) Until the date of the 2019 Annual Meeting, if the number of directors is changed, any increase or decrease shall be apportioned among the classes so as to maintain the number of directors in each class as nearly equal as possible, and any additional director of any class elected to fill a vacancy resulting from an increase in such class shall hold office for a term that shall coincide with the remaining term of that class, but in no case will a decrease in the number of directors shorten the term of any incumbent director.

(e) A director shall hold office until the Annual Meeting for the year in which his or her term expires and until his or her successor shall be elected and shall qualify, subject, however, to prior death, resignation, retirement, disqualification or removal from office.

(f) Subject to the terms of any one or more classes or series of Preferred Stock, any vacancy on the Board that results from an increase in the number of directors may be filled by a majority of the Board then in office, provided that a quorum is present, and any other vacancy occurring on the Board may be filled by a majority of the Board then in office, even if less than a quorum, or by a sole remaining director. During the period in which the Board is classified pursuant to Section 141(d) of the GCL, any director of any class elected to fill a vacancy resulting from an increase in the number of directors of such class shall hold office for a term that shall coincide with the remaining term of that class. Any director elected to fill a

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vacancy not resulting from an increase in the number of directors shall have the same remaining term as that of his or her predecessor. Subject to the rights, if any, of the holders of shares of Preferred Stock then outstanding, any or all of the directors of the Corporation may be removed from office at any time and only by the affirmative vote of the holders of at least a majority of the voting power of the Corporation’s then outstanding capital stock entitled to vote generally in the election of directors; provided, however that until such time as the Board is no longer classified, directors may be removed from office only for cause in accordance with Section 141(k) of the GCL, following which directors may be removed from office with or without cause. Notwithstanding the foregoing, whenever the holders of any one or more classes or series of Preferred Stock issued by the Corporation shall have the right, voting separately by class or series, to elect directors at an annual or special meeting of stockholders, the election, term of office, filling of vacancies and other features of such directorships shall be governed by the terms of this Amended and Restated Certificate of Incorporation applicable thereto, and such directors so elected shall not be divided into classes pursuant to this Article FIFTH unless expressly provided by such terms.

(g) In addition to the powers and authority hereinbefore or by statute expressly conferred upon them, the directors are hereby empowered to exercise all such powers and do all such acts and things as may be exercised or done by the Corporation, subject, nevertheless, to the provisions of the GCL, this Amended and Restated Certificate of Incorporation, and any By-Laws adopted by the stockholders; provided, however, that no By-Laws hereafter adopted by the stockholders shall invalidate any prior act of the directors which would have been valid if such By-Laws had not been adopted.

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SIXTH: No director shall be personally liable to the Corporation or any of its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to the Corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) pursuant to Section 174 of the GCL or (iv) for any transaction from which the director derived an improper personal benefit. Any repeal or modification of this Article SIXTH by the stockholders of the Corporation shall not adversely affect any right or protection of a director of the Corporation existing at the time of such repeal or modification with respect to acts or omissions occurring prior to such repeal or modification.

SEVENTH: The Corporation shall indemnify its directors and officers to the fullest extent authorized or permitted by law, as now or hereafter in effect, and such right to indemnification shall continue as to a person who has ceased to be a director or officer of the Corporation and shall inure to the benefit of his or her heirs, executors and personal and legal representatives; provided, however, that, except for proceedings to enforce rights to indemnification, the Corporation shall not be obligated to indemnify any director or officer (or his or her heirs, executors or personal or legal representatives) in connection with a proceeding (or part thereof) initiated by such person unless such proceeding (or part thereof) was authorized or consented to by the Board. The right to indemnification conferred by this Article SEVENTH shall include the right to be paid by the Corporation the expenses incurred in defending or

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otherwise participating in any proceeding in advance of its final disposition upon receipt by the Corporation of an undertaking by or on behalf of the director or officer receiving advancement to repay the amount advanced if it shall ultimately be determined that such person is not entitled to be indemnified by the Corporation under this Article SEVENTH.

The Corporation may, to the extent authorized from time to time by the Board, provide rights to indemnification and to the advancement of expenses to employees and agents of the Corporation similar to those conferred in this Article SEVENTH to directors and officers of the Corporation.

The rights to indemnification and to the advance of expenses conferred in this Article SEVENTH shall not be exclusive of any other right which any person may have or hereafter acquire under this Amended and Restated Certificate of Incorporation, the By-Laws of the Corporation, any statute, agreement, vote of stockholders or disinterested directors or otherwise.

Any repeal or modification of this Article SEVENTH shall not adversely affect any rights to indemnification and to the advancement of expenses of a director or officer of the Corporation existing at the time of such repeal or modification with respect to any acts or omissions occurring prior to such repeal or modification.

EIGHTH: Any action required or permitted to be taken by the stockholders of the Corporation must be effected at a duly called annual or special meeting of stockholders of the Corporation, and the ability of the stockholders to consent in writing to the taking of any action is hereby specifically denied.

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NINTH: Meetings of stockholders may be held within or without the State of Delaware, as the By-Laws may provide. The books of the Corporation may be kept (subject to any provision contained in the GCL) outside the State of Delaware at such place or places as may be designated from time to time by the Board or in the By-Laws of the Corporation.

TENTH: Unless otherwise required by law, special meetings of stockholders, for any purpose or purposes, may be called by either (i) the Chairman of the Board, if there be one, (ii) the President, (iii) the Board or (iv) an officer authorized by the Board to do so. The ability of the stockholders to call a special meeting of stockholders is hereby specifically denied.

ELEVENTH: In furtherance and not in limitation of the powers conferred upon it by the laws of the State of Delaware, the Board shall have the power to adopt, amend, alter or repeal the Corporation’s By-Laws. The affirmative vote of at least a majority of the entire Board shall be required to adopt, amend, alter or repeal the Corporation’s By-Laws. The Corporation’s By-Laws also may be adopted, amended, altered or repealed by the affirmative vote of the holders of at least a majority of the voting power of the shares entitled to vote at an election of directors.

TWELFTH: The Corporation reserves the right to amend, alter, change or repeal any provision contained in this Amended and Restated Certificate of Incorporation in the manner now or hereafter prescribed in this Amended and Restated Certificate of Incorporation, the Corporation’s By-Laws or the GCL, and all rights herein conferred upon stockholders are granted subject to such reservation.

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IN WITNESS WHEREOF, the Corporation has caused this Amended and Restated Certificate of Incorporation to be executed on its behalf this 30th day of March, 2016.

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