UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                   FORM 8-K/A

                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934


                          Date of Report: JUNE 30, 2005
                        (Date of Earliest Event Reported)

                               GRIFFON CORPORATION
                               -------------------
               (Exact name of registrant as specified in charter)


         DELAWARE                      1-6620                    11-1893410
         --------                      ------                    ----------
(State or other jurisdiction         (Commission              (I.R.S. Employer
       of incorporation)             File Number)            Identification No.)


100 JERICHO QUADRANGLE, JERICHO, NEW YORK                           11753
- -----------------------------------------                          -------
  (Address of Principal Executive Offices)                        (Zip Code)

                                 (516) 938-5544
                                 --------------
              (Registrant's telephone number, including area code)



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):

_  Written communications pursuant to Rule 425 under the Securities Act
     (17 CFR 230.425)
_  Soliciting material pursuant to Rule 14a-12 under the Exchange Act
     (17 CFR 240.14a-12)
_  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
     Act(17 CFR 240.14d-2(b))
_  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
     Act (17 CFR 240.13e-4(c))

This filing amends the Registrant's current report on Form 8-K, dated June 30, 2005, regarding the Registrant's acquisition, through its indirect, wholly-owned subsidiary, Clopay Folien GmbH ("Clopay"), from BBA Holding Deutschland GmbH ("BBA") of all the share capital of BBA Joint Venture Holding GmbH, which is the owner of the forty (40%) percent of Finotech Verbundstoffe GmbH & Co KG ("Finotech") that Clopay does not already own, and includes the required pro forma financial information as follows: ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS. (b) Pro Forma Financial Information. The financial information required by this Item is annexed hereto as Exhibit 99.2.

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. GRIFFON CORPORATION By: /s/ Eric Edelstein ------------------------------------ Eric Edelstein Executive Vice President and Chief Financial Officer Date: September 15, 2005

EXHIBIT INDEX 99.2 Pro Forma Consolidated Balance Sheet and Consolidated Statements of Income of Griffon Corporation.

                                                                    Exhibit 99.2



                         PRO FORMA FINANCIAL INFORMATION

     On June 30, 2005, the Registrant entered into a Stock Purchase Agreement
with BBA Holding Deutschland GmbH ("BBA") pursuant to which the Registrant,
through its indirect, wholly-owned subsidiary, Clopay Folien GmbH, ("Clopay"),
purchased from BBA all of the share capital of BBA Joint Venture Holding GmbH
("JV Holding") for $82 million in cash (the "Transaction"). JV Holding was the
owner of the forty (40%) percent of Finotech Verbundstoffe GmbH & Co KG
("Finotech") that Clopay did not already own. The transaction was funded with
$22 million of existing cash and borrowings of $60 million bearing interest at
approximately 5.1% pursuant to the Registrant's existing credit facility. The
following unaudited pro forma financial statements give effect to the
acquisition by the Registrant of the 40% minority interest in Finotech. The pro
forma adjustments reflect preliminary purchase accounting for the transaction
because the valuation of underlying assets has not been completed and the tax
attributes of the transaction have not been finalized. The purchase price
allocation is expected to be completed in connection with the preparation of the
consolidated financial statements for the fiscal year ended September 30, 2005.
The unaudited pro forma balance sheet is based upon the consolidated balance
sheet of Griffon Corporation and has been prepared to reflect the acquisition of
the Finotech minority interest as of June 30, 2005. The unaudited pro forma
statements of income for the year ended September 30, 2004 and for the
nine-month period ended June 30, 2005 are based upon the historical financial
statements for such periods and reflect results of operations as if the
acquisition of the Finotech minority interest had occurred on October 1, 2003
for both pro forma statements of income.



Pro Forma Consolidated Balance Sheet
June 30, 2005
                                                                 Griffon                                         Griffon
                                                               Corporation           Pro Forma                 Corporation
                                                             & subsidiaries         Adjustments                 Pro Forma
                                                             --------------         -----------                 ---------
ASSETS
- ------

                                                                                                     
  CURRENT ASSETS:
    Cash and cash equivalents                                  $ 88,481,000       $ (22,000,000)  A           $ 66,481,000
    Accounts receivable, less allowance for
      doubtful accounts                                         173,729,000                                    173,729,000
    Contract costs and recognized income not
      yet billed                                                 36,732,000                                     36,732,000
    Inventories                                                 143,659,000             366,400   B            144,025,400
    Prepaid expenses and other current assets                    39,421,000                                     39,421,000
                                                               ------------         -----------               ------------
       Total current assets                                     482,022,000         (21,633,600)               460,388,400
                                                               ------------         -----------               ------------

  PROPERTY, PLANT AND EQUIPMENT
    at cost, less accumulated depreciation
    and amortization                                            206,991,000          12,476,800   B            219,467,800
                                                               ------------         -----------               ------------

  OTHER ASSETS:
    Costs in excess of fair value of net
      assets of businesses acquired                              62,067,000          32,487,800   C             94,554,800
    Intangible and other assets                                  30,002,000          29,004,000   D             59,006,000
                                                               ------------         -----------               ------------
                                                                 92,069,000          61,491,800                153,560,800
                                                               ------------         -----------               ------------
                                                               $781,082,000         $52,335,000               $833,417,000
                                                               ============         ===========               ============





Griffon Griffon Corporation Pro Forma Corporation & subsidiaries Adjustments Pro Forma -------------- ----------- ----------- LIABILITIES AND SHAREHOLDERS' EQUITY - ---------------------- CURRENT LIABILITIES: Accounts and notes payable $ 93,832,000 $ 93,832,000 Other current liabilities 104,982,000 $ 157,000 E 105,139,000 ------------ ------------ ------------- Total current liabilities 198,814,000 157,000 198,971,000 LONG-TERM DEBT 144,815,000 60,000,000 A 204,815,000 OTHER LIABILITIES AND DEFERRED CREDITS 50,282,000 18,289,000 E 68,571,000 ------------ ------------ -------------- Total liabilities and deferred credits 393,911,000 78,446,000 472,357,000 MINORITY INTEREST 26,111,000 (26,111,000) F SHAREHOLDERS' EQUITY 361,060,000 361,060,000 ------------ ------------ -------------- $781,082,000 $52,335,000 $ 833,417,000 ============ ============ ============== Notes to Pro Forma Balance Sheet A) Purchase price of $82 million, consisting of $22 million of existing cash and proceeds from borrowings of $60 million. B) Increase to asset values based upon preliminary appraisals. C) Additional goodwill based on the excess of the purchase price over the minority shareholder's interest in the estimated fair values of the net assets acquired. D) Reflects the estimated fair value of the customer relationship with the specialty plastic film segment's major customer. This asset is estimated to have an indefinite life. E) Reflects deferred tax liabilities. F) Elimination of Finotech minority interest.

Pro Forma Consolidated Income Statement Nine Months ended June 30, 2005 Griffon Griffon Corporation Pro Forma Corporation & subsidiaries Adjustments Pro Forma ---------------- ----------- --------- Net sales $1,013,551,000 $1,013,551,000 Cost of sales 756,347,000 $ 567,000 A 756,914,000 -------------- ------------ -------------- Gross profit 257,204,000 (567,000) 256,637,000 Selling, general and administrative expenses 213,761,000 213,761,000 -------------- ------------ ------------- Income from operations 43,443,000 (567,000) 42,876,000 -------------- ------------ -------------- Other income (expense): Interest expense (5,768,000) (2,295,000) B (8,063,000) Interest income 1,527,000 1,527,000 Other, net 4,385,000 (12,000) 4,373,000 -------------- ------------ -------------- 144,000 (2,307,000) (2,163,000) -------------- ------------ -------------- Income before income taxes 43,587,000 (2,874,000) 40,713,000 Provision for income taxes 12,982,000 (987,000) C 11,995,000 -------------- ------------ -------------- Income before minority interest 30,605,000 (1,887,000) 28,718,000 Minority interest (4,415,000) 4,415,000 D -------------- ------------ -------------- Net income $ 26,190,000 $2,528,000 $ 28,718,000 ============== ============ ============== Basic earnings per share of common stock $ .88 $ .97 ============== ============== Diluted earnings per share of common stock $ .84 $ .92 ============== ============== Weighted average number of shares included in the computation: Basic 29,625,000 29,625,000 ========== ========== Diluted 31,251,000 31,251,000 ========== ==========

Notes to Pro Forma Income Statement for the Nine Months ended June 30, 2005 A) Additional depreciation expense attributable to purchase price allocation to property, plant and equipment, assuming approximately 16.5 years as the remaining weighted average useful life of the depreciable assets. B) Interest expense on additional $60 million of debt. C) Tax effect of pro forma adjustments. D) Elimination of Finotech minority interest.

Pro Forma Consolidated Income Statement Fiscal Year ended September 30, 2004 Griffon Griffon Corporation Pro Forma Corporation & subsidiaries Adjustments Pro Forma -------------- ----------- --------- Net sales $1,393,809,000 $1,393,809,000 Cost of sales 992,648,000 $ 1,127,000 A 993,775,000 --------------- ------------ -------------- Gross profit 401,161,000 (1,127,000) 400,034,000 Selling, general and administrative expenses 289,979,000 289,979,000 --------------- ------------ -------------- Income from operations 111,182,000 (1,127,000) 110,055,000 --------------- ------------ -------------- Other income (expense): Interest expense (8,066,000) (3,060,000) B (11,126,000) Interest income 1,070,000 1,070,000 Other, net 563,000 (367,000) 196,000 --------------- ------------ -------------- (6,433,000) (3,427,000) (9,860,000) --------------- ------------ -------------- Income before income taxes 104,749,000 (4,554,000) 100,195,000 Provision for income taxes 38,757,000 (1,549,000) C 37,208,000 --------------- ------------ -------------- Income before minority interest 65,992,000 (3,005,000) 62,987,000 Minority interest (12,133,000) 12,133,000 D -------------- ------------ -------------- Net income $ 53,859,000 $ 9,128,000 $ 62,987,000 ============== ============ ============== Basic earnings per share of common stock $ 1.81 $ 2.12 ============= ============== Diluted earnings per share of common stock $ 1.71 $ 1.99 ============= ============== Weighted average number of shares included in the computation: Basic 29,762,000 29,762,000 ========== ========== Diluted 31,586,000 31,586,000 ========== ==========

Notes to Pro Forma Income Statement for the Fiscal Year ended September 30, 2004 A) Charges inventory related purchase accounting adjustment to cost of sales. Also reflects additional depreciation expense attributable to purchase price allocation to property, plant and equipment, assuming 16.5 years as the remaining weighted average useful life of the depreciable assets. B) Interest expense on additional $60 million of debt. C) Tax effect of pro forma adjustments. D) Elimination of Finotech minority interest.