Exterior Contractor Product Guide

New Castle XT DP5-rated Windows

CertainTeed has expanded the size range of New Castle XT DP50-rated windows, making it even easier for remodelers to meet homebuyers' growing demand for larger windows while adhering to stringent building codes. In total, the expansion includes 24 new larger sizes that meet the DP50 structural rating, including windows as large as 36 in. by 80 in. for single-hung and double-hung, 72 in. by 76 in. for twin single-hung and double-hung, and 108 in by 76in. for triple single-hung and double-hung.