FORM 10-Q
                  SECURITIES AND EXCHANGE COMMISSION
                        Washington, D.C. 20549




            (Mark one)
            ( X ) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
            THE SECURITIES EXCHANGE ACT OF 1934

            For the quarterly period ended September 30, 1999

                                  OR

            (  ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
            THE SECURITIES EXCHANGE ACT OF 1934

            For the transition period from _________ to ______


        Commission file number  0-22462

               Gibraltar Steel Corporation
             (Exact name of Registrant as specified in its charter)

               Delaware                               16-1445150
            (State or other jurisdiction of           (I.R.S. Employer
            incorporation or organization)            Identification No.)

            3556 Lake Shore Road, P.O. Box 2028, Buffalo, New York 14219-0228
            (Address of principal executive offices)

               (716)  826-6500
            (Registrant's telephone number, including area code)




        Indicate by check mark whether the Registrant (1) has filed
        all reports required to be filed by Section 13 or 15(d) of
        the Securities Exchange Act of 1934 during the preceding 12
        months (or for such shorter period that the Registrant was
        required to file such reports), and (2) has been subject to
        such filing requirements for the past 90 days.  Yes  X .
        No    .


        As of September 30, 1999, the number of common shares
        outstanding was: 12,569,689.







                                1 of 14

GIBRALTAR STEEL CORPORATION INDEX PAGE NUMBER PART I. FINANCIAL INFORMATION Item 1. Financial Statements Condensed Consolidated Balance Sheets September 30, 1999 (unaudited) and December 31, 1998 (audited) 3 Condensed Consolidated Statements of Income Three and nine months ended September 30, 1999 and 1998 (unaudited) 4 Condensed Consolidated Statements of Cash Flows Nine months ended September 30, 1999 and 1998 (unaudited) 5 Notes to Condensed Consolidated Financial Statements (unaudited) 6 - 8 Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations 9 - 12 PART II. OTHER INFORMATION 13 2 of 14

PART I. FINANCIAL INFORMATION Item 1. Financial Statements GIBRALTAR STEEL CORPORATION CONDENSED CONSOLIDATED BALANCE SHEET (in thousands) September 30, December 31, 1999 1998 (unaudited) (audited) Assets Current assets: Cash and cash equivalents $ 3,819 $ 1,877 Accounts receivable 91,570 71,070 Inventories 94,753 99,351 Other current assets 4,230 3,536 Total current assets 194,372 175,834 Property, plant and equipment, net 203,926 176,221 Other assets 96,286 86,380 $ 494,584 $ 438,435 ======== ======== Liabilities and Shareholders' Equity Current liabilities: Accounts payable $ 54,389 $ 38,601 Accrued expenses 23,615 11,646 Current maturities of long-term debt 1,279 1,351 Total current liabilities 79,283 51,598 Long-term debt 205,431 199,395 Deferred income taxes 27,650 25,289 Other non-current liabilities 2,218 1,845 Shareholders' equity Preferred shares - - Common shares 126 125 Additional paid-in capital 68,089 66,613 Retained earnings 111,787 93,570 Total shareholders' equity 180,002 160,308 $ 494,584 $ 438,435 ======== ======== See accompanying notes to financial statements 3 of 14

GIBRALTAR STEEL CORPORATION CONDENSED CONSOLIDATED STATEMENT OF INCOME (in thousands, except per share data) Three Months Ended Nine Months Ended September 30, September 30, 1999 1998 1999 1998 (unaudited) (unaudited) Net sales $ 162,909 $ 152,628 $ 466,954 $ 413,893 Cost of sales 128,664 124,937 371,290 339,149 Gross profit 34,245 27,691 95,664 74,744 Selling, general and administrative expense 18,819 15,777 53,202 42,026 Income from operations 15,426 11,914 42,462 32,718 Interest expense 3,318 3,337 9,740 7,688 Income before taxes 12,108 8,577 32,722 25,030 Provision for income taxes 4,903 3,431 13,252 10,012 Net income $ 7,205 $ 5,146 $ 19,470 $ 15,018 ========= ========= ========= ======== Net income per share-Basic $ .57 $ .41 $ 1.55 $ 1.21 ========= ========= ========= ======== Weighted average number of shares outstanding-Basic 12,563 12,477 12,530 12,446 ========= ========= ========= ======== Net income per share-Diluted $ .56 $ .41 $ 1.52 $ 1.19 ========= ========= ========= ======== Weighted average number of shares outstanding-Diluted 12,862 12,612 12,790 12,640 ========= ========= ========= ======== See accompanying notes to financial statements 4 of 14

GIBRALTAR STEEL CORPORATION CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (in thousands) Nine Months Ended September 30, 1999 1998 (unaudited) Cash flows from operating activities Net income $ 19,470 $ 15,018 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 12,699 9,368 Provision for deferred income taxes 1,921 1,329 Undistributed equity investment income (293) (259) Other noncash adjustments 587 275 Increase (decrease) in cash resulting from changes in (net of acquisitions): Accounts receivable (15,912) (18,238) Inventories 6,286 (18,958) Other current assets (597) (1,356) Accounts payable and accrued expenses 21,849 16,111 Other assets (955) (757) Net cash provided by operating activities 45,055 2,533 Cash flows from investing activities Acquisitions, net of cash acquired (31,484) (86,799) Purchases of property, plant and equipment (17,917) (16,807) Net proceeds from sale of property and equipment 2,425 108 Net cash used in investing activities (46,976) (103,498) Cash flows from financing activities Long-term debt reduction (62,727) (28,002) Proceeds from long-term debt 66,953 128,778 Payment of dividends (1,253) - Net proceeds from issuance of common stock 890 66 Net cash provided by financing activities 3,863 100,842 Net increase (decrease) in cash and cash equivalents 1,942 (123) Cash and cash equivalents at beginning of year 1,877 2,437 Cash and cash equivalents at end of period $ 3,819 $ 2,314 ====== ====== See accompanying notes to financial statements 5 of 14

GIBRALTAR STEEL CORPORATION NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS The accompanying condensed consolidated financial statements as of September 30, 1999 and 1998 have been prepared by the Company without audit. In the opinion of management, all adjustments necessary to present fairly the financial position, results of operations and cash flows at September 30, 1999 and 1998 have been included. Certain information and footnote disclosures including significant accounting policies normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted. It is suggested that these condensed financial statements be read in conjunction with the financial statements included in the Company's Annual Report to Shareholders for the year ended December 31, 1998. The results of operations for the nine month period ended September 30, 1999 are not necessarily indicative of the results to be expected for the full year. 2. INVENTORIES Inventories consist of the following: (in thousands) September 30, December 31, 1999 1998 (unaudited) (audited) Raw material $ 62,421 $ 60,665 Finished goods and work-in-process 32,332 38,686 Total inventories $ 94,753 $ 99,351 ======= ======= 6 of 14

3. SHAREHOLDERS' EQUITY The changes in shareholders' equity consist of: (in thousands) Additional Common Shares Paid-in Retained Shares Amount Capital Earnings December 31, 1998 12,484 $ 125 $ 66,613 $ 93,570 Net Income - - - 19,470 Stock options exercised 65 1 919 - Earned portion of restricted stock - - 87 - Profit sharing plan contribution 21 - 470 - Cash dividends-$.10 per share - - - (1,253) September 30, 1999 12,570 $ 126 $ 68,089 $111,787 ==================================== 4. EARNINGS PER SHARE Basic net income per share equals net income divided by the weighted average shares outstanding for the nine months ended September 30, 1999 and 1998. The computation of diluted net income per share includes all dilutive common stock equivalents in the weighted average shares outstanding. The reconciliation between basic and diluted earnings per share is as follows: Basic Basic Diluted Diluted Income Shares EPS Shares EPS 1999 $19,470,000 12,529,765 $1.55 12,790,462 $1.52 1998 $15,018,000 12,446,209 $1.21 12,639,655 $1.19 Included in diluted shares are common stock equivalents relating to options of 260,697 and 193,446 for 1999 and 1998, respectively. 5. ACQUISITIONS On August 1, 1999, the Company purchased the assets and business of Hi-Temp Incorporated (Hi-Temp) for approximately $24 million in cash. Hi-Temp provides metallurgical heat treating services in which customer-owned parts are exposed to precise temperature and other conditions to improve their material properties, strength and durability. On July 1, 1999, the Company purchased all the outstanding capital stock of K & W Metal Fabricators, Inc. d/b/a Weather Guard Building Products (Weather Guard) for approximately $7 million in cash. Weather Guard manufactures a full line of metal building products, including rain-carrying systems, metal roofing and roofing accessories, for industrial, commercial and residential applications. 7 of 14

On October 1, 1998, the Company purchased all the outstanding capital stock of Harbor Metal Treating Co., Inc. and its affiliates (Harbor) for $13.5 million in cash. Harbor is a metallurgical heat treating services provider. On June 1, 1998, the Company purchased all the outstanding common stock of United Steel Products Company (USP) for approximately $24 million in cash. USP designs and manufacturers lumber connector products for the wholesale market and plastic molded products for component manufacturers. On April 1, 1998, the Company purchased the assets and business of Appleton Supply Co., Inc. (Appleton) for approximately $28 million in cash. Appleton manufactures louvers, roof edging, soffitts and other metal building products for wholesale distribution. On March 1, 1998, the Company purchased the assets and business of The Solar Group (Solar) for approximately $35 million in cash. Solar manufactures a line of construction products as well as a complete line of mailboxes, primarily manufactured with galvanized steel. These acquisitions have been accounted for under the purchase method. Results of operations of Hi-Temp, Weather Guard, Harbor, USP, Appleton and Solar have been consolidated with the Company's results of operations from the respective acquisition dates. The aggregate excess of the purchase prices of these acquisitions over the fair market values of the net assets of the acquired companies is being amortized over 35 years from the acquisition dates using the straight-line method. The following information presents the pro forma consolidated condensed results of operations as if the acquisitions had occurred on January 1, 1998. The pro forma amounts may not be indicative of the results that actually would have been achieved had the acquisitions occurred as of January 1, 1998 and are not necessarily indicative of future results of the combined companies. (in thousands, except per share data) Nine Months Ended September 30, 1999 1998 (unaudited) Net sales $ 486,047 $ 478,265 ========= ========= Income before taxes $ 33,805 $ 27,411 ========= ========= Net income $ 20,114 $ 16,356 ========= ========= Net income per share-Basic $ 1.61 $ 1.31 ========= ========= 8 of 14

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations Results of Operations Net sales of $162.9 million for the third quarter ended September 30, 1999 increased 6.7% from net sales of $152.6 million for the prior year's third quarter. Net sales of $467.0 million for the nine months ended September 30, 1999 increased 12.8% from net sales of $413.9 million for the same period of 1998. These increases resulted from including net sales of Solar (acquired March 1, 1998), Appleton (acquired April 1, 1998), USP (acquired June 1, 1998), Harbor (acquired October 1, 1998), Weather Guard (acquired July 1, 1999) and Hi-Temp (acquired August 1, 1999) (collectively, the Acquisitions) with sales growth at existing operations. Cost of sales as a percentage of net sales decreased to 79.0% and 79.5%, respectively, for the third quarter and nine months ended September 30, 1999 from 81.9% for both periods in 1998. This improvement was primarily due to the Acquisitions, which have historically generated higher margins than the Company's existing operations, and due to lower raw material costs at existing operations. Selling, general and administrative expenses as a percentage of net sales increased to 11.6% and 11.4%, respectively, for the third quarter and nine months ended September 30, 1999 from 10.3% and 10.2% for the same periods of 1998. This increase was primarily due to higher costs as a percentage of sales attributable to the Acquisitions and performance based compensation linked to the Company's sales and profitability. Interest expense for the third quarters ended September 30, 1999 and 1998 were approximately the same despite higher borrowings during 1999 due to a lower effective interest rate in the third quarter of 1999. Interest expense for the nine months ended September 30, 1999 increased $2.1 million from the same period in 1998 due to higher borrowings during 1999 and due to a higher effective interest rate during the nine months period in 1999 as compared to 1998. As a result of the above, income before taxes increased by $3.5 million and $7.7 million for the third quarter and nine months ended September 30, 1999 from the same periods of 1998. Income taxes for the third quarter and nine months ended September 30, 1999 approximated $4.9 million and $13.3 million, respectively, and were based on a 40.5% effective tax rate compared to an effective tax rate of 40.0% for the same periods in 1998. Liquidity and Capital Resources During the first nine months of 1999, the Company's working capital decreased slightly by $3.6 million to $115.1 million. Additionally, shareholders' equity increased by $19.7 million at September 30, 1999 to $180.0 million. 9 of 14

The Company's principal capital requirements are to fund its operations, including working capital, the purchase and funding of improvements to its facilities, machinery and equipment and to fund acquisitions. Net cash provided by operations of $45.1 million resulted primarily from net income of $19.5 million, depreciation and amortization of $12.7 million, an increase in accounts payable and accrued expenses of $21.8 million and a decrease in inventory of $6.3 million, offset by an increase in accounts receivable of $15.9 million necessary to service increased sales levels. The $45.1 million of net cash provided by operations and net borrowings of $4.2 million were used to fund the acquisitions of Weather Guard and Hi-Temp, capital expenditures of $17.9 million and cash dividends of $1.3 million. At September 30, 1999 the Company's aggregate credit facilities available approximated $263 million, with borrowings of approximately $206 million and an additional availability of approximately $57 million. The Company believes that availability of funds under its credit facilities together with cash generated from operations will be sufficient to provide the Company with the liquidity and capital resources necessary to support its existing operations. Impact of Year 2000 The Year 2000 issue concerns computer hardware and software being able to distinguish between the year 1900 and the year 2000 and the resultant effect on operations. The Company has conducted a detailed assessment of all of its information technology and non-information technology hardware and software with regard to Year 2000 issues, with special emphasis on mission critical hardware and software. The Company's plan to ensure that its systems are Year 2000 ready is comprised of: inventorying all processes and systems which may have a date-related component and identifying those which are not Year 2000 ready; remediating (i.e., correcting or replacing) those systems which are not Year 2000 ready; and testing the remediated processes and systems to insure that they will, in fact, operate as desired according to Year 2000 requirements. The Company has completed it Year 2000 readiness process at its headquarters and at each of the subsidiaries which it owned as of June 30, 1999. Information technology and non-information technology hardware and software of the Company and these subsidiaries were inventoried and those not Year 2000 ready were identified. Mission critical processes and systems were given priority for remediation and testing. Therefore, as of September 30, 1999, the Company believes that these mission critical processes and systems are fully Year 2000 ready. The following table summarizes the status as of September 30, 1999 of the Year 2000 efforts with respect to identified items that may materially impact operations of the Company and those subsidiaries that it owned as of June 30, 1999. 10 of 14

Area Inventorying & Assessment Remediation & Testing Estimated % Complete Estimated % Complete IT Hardware and Software: Financial 100% 100% Non-Financial 100% 100% Non-IT Hardware and Software 100% 100% Third-Party Systems* 100% * Products N/A N/A * The Company has third party relationships with numerous large customers and vendors, including raw material suppliers and utility companies, many of which are publicly traded corporations subject to disclosure requirements. The Company continues to communicate with these third parties to assess their internal state of Year 2000 readiness and monitors Year 2000 disclosures in their SEC filings. These third party communications and disclosures are then evaluated for possible risk to, or effect on, the Company's operations and are incorporated into the Company's own detailed Year 2000 readiness assessment. The Company is currently conducting a detailed assessment of the information technology and non-information technology hardware and software at Weather Guard and Hi-Temp, which were both acquired in the third quarter of 1999, with mission critical processes and systems given priority for testing and remediation. The Company believes that these subsidiaries' mission critical processes and systems will be fully Year 2000 ready by December 1999. The Company's Year 2000 readiness process includes contingency planning for all mission critical issues in order to minimize any risk to the Company. Contingency plans have been developed for each subsidiary and are being reviewed and incorporated into the Company's consolidated Year 2000 contingency plan and structure. Contingency planning is expected to be competed in November 1999. Costs specifically associated with modifying internal use software for Year 2000 readiness are expensed as incurred but have not been, and are not expected to be, material to the Company's net income. The Company has budgeted approximately $750,000 to remediate its affected systems, of which approximately $500,000 was expensed through September 30, 1999. Costs of replacing some of the Company's systems with Year 2000 ready systems have been capitalized as these new systems were acquired for business reasons and not to remediate Year 2000 matters, if any, in the former systems. 11 of 14

Based upon the results of Year 2000 readiness efforts and internal audit processes currently underway, the Company believes that all mission critical information and non- information technology systems and processes will allow the Company to continue operations beyond the Year 2000 without a material impact on its results of operations or financial position. However, unanticipated problems which may be identified in the ongoing Year 2000 readiness process could result in an undetermined financial risk. A worst case scenario could include the possible shut down of an operation for a period of time. However, in that event, customer orders may be serviced through use of other Company owned facilities with similar manufacturing capabilities and inventories or, alternatively, by out-sourcing some manufacturing to third parties. Recent Accounting Pronouncement In June 1998, the Financial Accounting Standards Board issued Statement of Financial Accounting Standards No. 133 Accounting for Derivative Instruments and Hedging Activities (FAS No. 133) which requires recognition of the fair value of derivatives in the statement of financial position, with changes in the fair value recognized either in earnings or as a component of other comprehensive income dependent upon the hedging nature of the derivative. Implementation of FAS No. 133 is required for fiscal 2001. The Company does not believe that FAS No. 133 will have a material impact on its earnings or other comprehensive income. Safe Harbor Statement The Company wishes to take advantage of the Safe Harbor provisions included in the Private Securities Litigation Reform Act of 1995 (the "Act"). Statements by the Company, other than historical information, constitute "forward looking statements" within the meaning of the Act and may be subject to a number of risk factors. Factors that could affect these statements include, but are not limited to, the following: the impact of changing steel prices on the Company's results of operations; changing demand for the Company's products and services; the impact of the Year 2000 issue; and changes in interest or tax rates. 12 of 14

PART II. OTHER INFORMATION Item 6. Exhibits and Reports on Form 8-K. 1. Exhibits a. Exhibit 27 - Financial Data Schedule 2. Reports on Form 8-K. There were no reports on Form 8-K during the three months ended September 30, 1999. 13 of 14

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, thereunto duly authorized. GIBRALTAR STEEL CORPORATION (Registrant) By /x/ Brian J. Lipke Brian J. Lipke Chief Executive Officer and Chairman of the Board By /x/ Walter T. Erazmus Walter T. Erazmus President By /x/ John E. Flint Vice President Chief Financial Officer (Principal Financial and Chief Accounting Officer) Date October 28, 1999 14 of 14

  

5 THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED FINANCIAL STATEMENTS ON FORM 10-Q AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. 1000 US DOLLARS 9-MOS DEC-31-1999 JAN-01-1999 SEP-30-1999 1 3,819 0 93,093 1,523 94,753 194,372 258,675 54,749 494,584 79,283 205,431 0 0 126 179,876 494,584 466,954 466,954 371,290 371,290 53,202 0 9,740 32,722 13,252 19,470 0 0 0 19,470 1.55 1.52