• Overall Dimension of Plastic (includes flange) 49 1/4" x 49 1/4"
• Flange 1 1/4", Dome dimension 46 3/4" x 46 3/4"
• Thickness .118 Approximately 1/8"
• Height of Outer Dome 9"
• Height of Inner Dome 7 1/2"
• Material: Acrylic Only
• Gradual Rise Profile (will not work with vertical rise or dome over frame units, contact us for helpful information regarding those shapes)
• We make all sizes! Please contact us if you need the size to be special.
• This item is made to order (No Returns or Exchanges) 
• Please allow 2-3 days to prepare for shipping (larger quantities may increase lead time)
• SHIPPING - This item ships on a pallet 54" x 54" LTL Freight

This product is designed for use in an existing residential/commercial framed gradual rise skylight where the frame and retainer are screwed together to hold the plastic in place.  There is no such thing as a STANDARD size or deduction between the Outside of the retainer frame and the plastic underneath.  Please remove screws and measure tip to tip of plastic prior to ordering.