BAYPORT (AP) - Andersen Corp. plans to expand its window and door manufacturing operations in Cottage Grove and North Branch. 

 
     The company is expected to announce the expansion Monday. Three-hundred jobs will be created. Andersen is headquartered in Bayport and is said to be the largest window and patio door maker in the U.S. The $45 million manufacturing expansion follows a recently completed addition in Bayport. 
 
     CEO Jay Lund says the company has benefited from the recovering housing market. Lund attributes some of Andersen's recent growth to a rise in demand for multifamily housing and an improved market for home improvements. 

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