EXHIBIT 99.1

Quanex Building Products Corporation Fiscal 2011 Second Quarter Results

Loss From Continuing Operations of $0.04 Per Diluted Share

Loss Included $0.07 Per Diluted Share of Special Items

Integration of Edgetech on Schedule

End Markets Remained Weak

HOUSTON, June 13, 2011 (GLOBE NEWSWIRE) -- Quanex Building Products Corporation (NYSE:NX), a leading manufacturer of engineered materials, components and systems serving domestic and international window and door markets through its Engineered Products and Aluminum Sheet Products groups, today released fiscal 2011 second quarter results for the period ending April 30, 2011. The company reported a diluted loss from continuing operations of $0.04 per share in the quarter that included the following special items: LIFO expense of $0.03; and Edgetech transaction costs of $0.03. Diluted earnings from continuing operations were $0.12 per share a year ago which included a bargained purchase gain of $0.03 per dulited share and a LIFO expense of $0.02. Second quarter earnings from continuing operations were down from a year ago primarily due to weaker results at the Engineered Products group, which had both lower sales and higher organic growth initiative expenses that will drive programs to enhance the group's long term sales.

Engineered Products group (EPG) is focused on providing window and door customers with fenestration components, products, and systems. Key end markets are residential repair & remodeling (R&R) and new home construction. Second quarter revenue was $82.5 million, which included one month of Edgetech sales of $6.4 million, and was lower than a year ago as demand at that time benefitted from two housing related tax credit programs. There were no similar credits this quarter. Operating income of $1.9 million was down from a year ago due to lower revenue and higher growth initiative costs of about $0.6 million. EPG's income included one month's operating loss at Edgetech of $0.9 million. Those Edgetech results were negatively impacted by a step-up in inventory expense related to the purchase method of accounting of $0.9 million.

Compared to the sequential first quarter, EPG revenue and operating income was down, as demand in the first quarter benefitted from the $1,500 energy efficient window tax credit that expired on December 31, 2010. Quanex believes its national customers bought ahead and built inventory to meet the expected rise in demand the deadline created, and in turn, demand slowed in the second quarter as excess inventory was worked down. Poor weather conditions also negatively impacted EPG's demand as new home construction activities were delayed in some geographic regions.

Quanex believes there is value in measuring its sales performance against an industry index. In the case of EPG, the company compares its sales to U.S. window shipments as reported by Ducker Worldwide, a market intelligence firm. For the 12 months ended second quarter, EPG sales were on track with the industry.

Edgetech Acquisition

With the purchase of Edgetech on March 31, its successful integration into EPG remains a high priority and good progress was made in the first month. Teams were assigned to this critical task and integration is on schedule. For the second half of fiscal 2011, Edgetech's results are estimated to be: Sales of about $45 million; depreciation & amortization of about $4 million; and operating income of about $2 million. These second half results do not include $2 million to $3 million of expected annualized synergies.

Quanex estimates a more normalized 12 month run rate for Edgetech, post the step-up in inventory, of: Sales of about $80 million; depreciation & amortization of about $8 million; and operating income of about $5 million. These estimates do not include any synergies and are subject to change.

Aluminum Sheet Products group is a leading provider of aluminum sheet through its Nichols Aluminum operation. Key end markets are residential repair & remodeling (R&R) and new home construction. Shipped pounds, revenue and operating income in the second quarter were 80 million pounds, $123.1 million and $6.1 million, respectively. Revenue was better than a year ago due to higher aluminum prices. Both pounds and operating income were lower compared to a year ago due to customer restocking that was driven at the time by tax credits that are no longer available. Operating income was further impacted by a product mix change, which included more unpainted sheet sales that sell at a lower margin than painted sheet. Nichols' spread (sales less material costs) was up 4% from the year ago quarter due primarily to higher aluminum prices.

The Aluminum Association reported non-can sheet aluminum shipments in the second quarter were up 4% from a year ago while Nichols Aluminum's second quarter shipments of 80 million pounds were down 4% over the same period. Part of the underperformance to the industry is attributed to relatively weak building and construction demand in the quarter, where Nichols has a sizable presence, compared to stronger distribution and transportation demand, where it has a relatively small presence.

Compared to the sequential first quarter, Nichols Aluminum shipped pounds, revenue and operating income were each better and reflected an improvement in seasonal demand (Nichols typically leads EPG into the Spring building season) and higher aluminum prices. However, spread was down 7% primarily because unpainted sheet sales were a larger percentage of the overall sales mix.

Corporate and Other Items

Corporate expenses in the quarter were $10.3 million and included, in part, the following items: Edgetech related transaction costs; ERP program costs; stock based compensation expense; and LIFO expense that primarily reflect higher aluminum prices at Nichols.

Cash Position

Quanex had a cash balance of $57.7 million and total debt outstanding stood at $2.0 million at the end of the quarter. The company used $104.4 million to acquire Edgetech and used $6.4 million to purchase the lineal extrusion assets of Jeld-Wen's Yakima, WA facility. Cash used by operating activities from continuing operations for the first half of 2011 was $5.4 million. The company's $270 million revolving credit facility remained untapped, but due to the facility's covenant requirements, the available capacity at quarter end was $214.7 million. Future uses of cash could be to fund organic growth activities, fund the common stock dividend, make acquisitions, and repurchase outstanding shares. No stock was purchased this quarter.

2011 Business Outlook

The combination of weak GDP growth, high unemployment, a lack of housing related tax incentives, a tight credit market, and a large inventory of homes available for sale has created a challenging business environment this year. The growth in the economy appears to have stalled, and in turn, the pace of the recovery in residential housing activity has slowed from previous expectations. The company is now anticipating reduced customer demand in the second half of 2011 compared to its original outlook. Therefore, Engineered Products financial guidance for 2011 has been reduced.

Engineered Products now expects to earn about $30 million in 2011 (pre-Edgetech), down $5 million from previous guidance, compared to $34 million it earned in 2010. EPG sales are now expected to be about flat to last year, not higher, and as previously disclosed, operating expenses are expected to be higher as the group continues to invest in long term growth initiatives.

Aluminum Sheet Products guidance remains unchanged. It expects to earn about $25 million in 2011 compared to $30 million last year. This estimate is based on lower shipped pounds because Nichols did not see the same level of restocking demand that was present in the first half of 2010 repeated in the first half of 2011.

Segment guidance for 2011 assumes no LIFO activity, and excludes estimated corporate expenses of $26 million (pre-Edgetech transaction and integration costs). Capital expenditures are estimated at $30 million (pre-Edgetech). Depreciation & amortization expenses are expected to be $29 million (pre-Edgetech). Corporate expenses and capital expenditures include $2.5 million and $9 million, respectively, of costs associated with the launch of Quanex's $30 million multiyear ERP program.

Organic Growth Initiatives

EPG's organic programs are focused on driving profitable growth through one sales and marketing team, coupled with the engineering collaboration of its family of businesses: Homeshield, Mikron, Truseal and Edgetech. Activities are focused on both national and regional window and door companies. EPG is also collectively working to develop new products and systems that provide its customers with the latest innovations in energy efficiency.

EPG launched its E-commerce website "Screen It Again" this quarter. The website gives retail customers the ability to purchase after-market, custom-sized screens and screen components, and window grills. EPG's Homeshield division, with decades of experience, will be producing these products.

Dividend Declared

The Board of Directors declared a quarterly cash dividend of $0.04 per share on the company's common stock, payable June 30, 2011, to shareholders of record on June 16, 2011.

Financial Statistics as of 04/30/11

Book value per common share: $11.62; Total debt to capitalization: 0.5%; Return on invested capital: 2.9%; Actual number of common shares outstanding: 37,501,151.

Definitions

Book value per common share – calculated as total stockholders' equity as of balance sheet date divided by actual number of common shares outstanding;

Total debt to capitalization – calculated as the sum of both the current and long-term portion of debt, as of balance sheet date, divided by the sum of both the current and long-term portion of debt plus total stockholders' equity as of balance sheet date;

Return on invested capital – calculated as the total of the prior 12 months net income plus prior 12 months after-tax interest expense and capitalized interest, the sum of which is divided by the trailing five quarters average total debt (current and long term) and total stockholders' equity.

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Statements that use the words "estimated," "expect," "could," "should," "believe," "will," "might," or similar words reflecting future expectations or beliefs are forward-looking statements. The forward-looking statements include, but are not limited to, references to synergies derived from the acquisition of Edgetech, future operating results and financial condition of Quanex and Edgetech and future uses of cash. The statements in this release are based on current expectations. Actual results or events may differ materially from this release. Factors that could impact future results may include, without limitation, the effect of both domestic and global economic conditions, the impact of competitive products and pricing, and the availability and cost of raw materials. For a more complete discussion of factors that may affect the company's future performance, please refer to the company's 10-K filing on December 20, 2010, under the Securities Exchange Act of 1934, in particular the section titled, "Private Securities Litigation Reform Act" contained therein.

For additional information, please visit www.quanex.com

CONTACT: Financial Contact:
         Jeff Galow
         713-877-5327

         Media Contact:
         Valerie Calvert
         713-877-5305