• Overall Dimension of Plastic (includes flange) 49" x 49"
• Flange 1 1/2", Dome dimension 46" x 46"
• Thickness .118 Approximately 1/8"
• Height of Outer Dome 9"
• Height of Inner Dome 7 1/2"
• Material: Acrylic Only (Vertical Rise unavailable in Polycarbonate)
• Vertical Rise Profile or Gradual Rise Profile (Both are commonly found in Texas and Oklahoma). Gradual Rise dome will NOT work in a vertical rise skylight frame.
• The Vertical Rise Profile is sometimes referred to as Quick Rise (most commonly found in skylights manufactured by Solar Accessories)
• 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 3-5 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.