wooden boards (Builth Wells LD2)

I'm looking for solid wooden boards, to replace a woefully saggy white shelf. Pieces of board that I can put together are fine. The shelf is to take the weight of glass storage jars of food. The entire length is 350cm. Ideally it needs to be 30cm deep. Old 1" thick - 2.5cm - board would be ideal.

It doesn't matter if it's painted, stained or marked - it just needs to be strong. Should you happen to have such board, please get in touch.
Can you help with this request?
To reply to this post, please log in or sign up.