348 Heat rear deck heat shield dimensions

Hi, I replaced my worn OEM heat shields on my ex 348 TS with material similar to that used in this thread

https://www.ferrarichat.com/forum/threads/348-355-rear-deck-lid-heat-shield-replacement-howto.439682/

I just bought a spider and want to ship so heat mat down to where the car is so I can work on it in the spring before bringing it back to MN. I forget how wide the mat needs to be (side to side) of the rear deck lid.

Since I don't have my car right handy, could anyone who has their car accessible measure the rough width (again side to side) of the heat mats area?

Thanks

 

HI. Thanks. Overall I'm not looking for the dimensions of the heat shields themselves, just the general dimensions of the non louvered portion of the rear decklid so I can approximate and cut down the material I have on hand and ship it vs the entire piece.

I think the non louvered portion of the rear deck lid is like 40"x 20"?

Thanks

 

Thanks!