Hi

I need something to cover underneath the dash.

It needs to be flexible but quite rigid so it doesn't flap about.

It will attach to the lower dash edge and go back to the bulkhead top chassis rail so needs to be 300mm by about 1300mm

I was thinking some sort of black plastic (pvc?) sheet about 1mm thick. I just can't find anything suitable.

Any ideas?

I used automotive carpet, waterproof and held in place with press out centre clips, neat, cheap and really easy

parcel shelf ?

Parcel shelf sounds good but may not be flexible enough? I used a piece of plastic bath panel - flexible so you could bend it into position and springy enough so it would pop back and hold itself in place behind the return of the dash

What do we think to 1.5mm ABS sheet?

I used black card from a craft shop. It was cheap and quite rigid although did 'fall off' after the test.

David

Thin plywood? (or will i get laughed off the forum and told to go to the Morgan corner?)