We recently bought a new oven to replace the one that was installed prior to us buying the house. When the electrician removed the old oven, we found that there was no timber lining the oven, just a massive hole in the wall!
We need a box to line the wall cavity, for the new oven to sit in. We have been unable to find anyone willing to take on the job at this time of year as it is either too small or everyone has too much work on already. We want to try and do it ourselves, as need it done before Christmas, but we are DIY novices so it seems a bit daunting.


The electrician will come back to install the oven, we just need to build a box to line the space. Has anyone taken on this project before and can give any advice? Type of wood to use for example! I have read some online guides that just say make sure your wood will stand up to the heat of the oven - how will I know this without some risky trial and error?
The dimensions of the hole are 64 x 96 x 73 cm