WHAT IS A GRID? A grid is typically an aluminum flat bar or profile which is crossed inside an insulating unit to give a window a "divided lite" colonial appearance. This is referred to as a grid because of the equal boxes it creates. TYPES OF GRIDS Flat grids are 5/8 inch in width and referred to as flat due their smooth profile. Flat grids are the most economical grid available. Sculptured grids are wider than flat grids at 1 and 1/16 inches in width. Sculptured grids have a higher profile than a flat grid as well as edge detail. Simulating a true divided lite -- as seen in wood windows -- a sculptured grid gives a higher-end look. The Next Step: The Final Step Back to Replacement Windows
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