Ikea Detolf Lid

[shawniyatwain]

Hi All
I am getting a detolf next week and would like to make the lid beforehand so i can put little nutmeg in straight away.
To anyone that has made one, what are the wood measurements? (really struggling to find this info online).
(Ideally would like the lid to sit on the metal bars with an extra layer of wood underneah to keep it slightly higher off the tank and protect nutmeg from the sharp mesh ends, if this makes sense.)