Rough Opening: 22 1/2 x 46 1/2

Outside Wood Curb Dimension: 25 1/2 x 49 1/2

Mounting Flange Dimension: 26 1/4 x 50 1/4

To view diagram of these dimensions click on image in upper left corner next to pictures of skylights. 

All Polycarbonate units are made with a clear acrylic inner dome (only concerned about impact protection on outside of skylight)

Our curb mount skylight comes with fully integrated frame and built in condensation system.

NO RETURNS of framed skylight boxes.  

This unit is NOT rated for Hurricanes.