gremlin_95 wrote:
Hi all,

I am trying to remember the name this certain term/item but I just
can't think of it

Basically, it applies in construction when a hole/trench or similar is
dug and metal sheets are placed on the walls of the said hole to stop
the earth caving in?

I thought some of you kind people would be able to help, it's really
bugging me!

Shoring or shoring up