What is the size of a kitchen skylight in a Jayco WH 29REKS?

[DarbyWalters]

I need to see if anyone knows the measurements of the Kitchen Skylight in a Jayco White Hawk (29REKS). I am looking for a sunblock to keep the light out and the TT is in Port A and I am in New Braunfels. It is not the standard 14x14 which you can readily buy the reflective sunblock...it is a much longer skylight.

[WayneAt63044]

I don't know your size but I have a longer one over the shower that I used an RV door window sized silver bubble plastic cover on. I used mirror clips to hold it in place and it can be easily removed if we want the light. Easy to trim to fit.