United States of America

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report: July 29, 2011

Commission File Number 1-7107

LOUISIANA-PACIFIC CORPORATION

(Exact name of registrant as specified in its charter)

414 Union Street, Suite 2000, Nashville, TN 37219

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (615) 986-5600

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

The information in this Form 8-K and Exhibit 99.1, attached hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.

On July 29, 2011 Louisiana-Pacific Corporation issued a press release announcing financial results for the quarter ended June 30, 2011, a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference.

In addition to disclosing financial results calculated in accordance with U.S. generally accepted accounting principles (“GAAP”), the attached press release discloses continuing earnings before interest expense, taxes, depreciation and amortization (“EBITDA from continuing operations”) which is a non-GAAP financial measure. Additionally, it discloses Adjusted EBITDA from continuing operations which further adjusts EBITDA from continuing operations to exclude stock based compensation expense, (gain) loss on sales or impairment of long lived assets, other operating charges and credits and investment income. Both EBITDA from continuing operations and Adjusted EBITDA from continuing operations are not a substitute for the GAAP measure of net income or operating cash flows or other GAAP measures of operating performance or liquidity.

We have EBITDA from continuing operations and Adjusted EBITDA from continuing operations in the press release because we use them as important supplemental measures of our performance and believe that similarly-titled measures are frequently used by securities analysts, investors and other interested persons in the evaluation of companies in our industry, some of which present similarly-titled measures when reporting their results. We use EBITDA from continuing operations and Adjusted EBITDA from continuing operations to evaluate our performance as compared to other companies in our industry that have different financing and capital structures and/or tax rates. It should be noted that companies calculate similarly-titled measures differently and, therefore, as presented by us may not be comparable to similarly-titled measures reported by other companies. In addition, EBITDA from continuing operations has material limitations as a performance measure because it excludes interest expense, income tax (benefit) expense and depreciation and amortization which are necessary to operate our business or which we otherwise incurred or experienced in connection with the operation of our business.

We believe that income (loss) from continuing operations excluding (gain) loss on sale or impairment of long-lived assets and other operating credits and charges, net, is a useful measure for evaluating our ability to generate earnings from continuing operations and that providing this measure will allow investors to more readily compare the earnings referred to in the press release to our earnings for past and future periods. We believe that this measure is particularly useful where the amounts of the excluded items are not consistent between the periods presented. It should be noted that other companies may present similarly-titled measures differently and, therefore, as presented by us may not be comparable to similarly-titled measures reported by other companies. In addition, income (loss) from continuing operations excluding (gain) loss on sale or impairment of long-lived assets and other operating credits and charges, net, has material limitations as a performance measure because it excludes items that are actually incurred or experienced in connection with the operations of our business.

(d) Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: July 29, 2011