floppy skin on deck??

Hi all, I am pretty new to surfing, started only last year so be kind
I've noticed the skin on the deck is sort of floppy. like you can push it a bit before it hits anything solid.
is this normal? is it just where the top is dinged and theres a dent underneath the outer part of the board?
thanks for any help

I've noticed the skin on the deck is sort of floppy. like you can push it a bit before it hits anything solid.
is this normal? is it just where the top is dinged and theres a dent underneath the outer part of the board?
thanks for any help