I recently built a pizza ovenhttp://uploads.tapatalk-cdn.com/2016...6360cd6ec6.jpg
And have built a door out of doubled up 45mm thick Tas oak.http://uploads.tapatalk-cdn.com/2016...9ffebcfcef.jpghttp://uploads.tapatalk-cdn.com/2016...d01c4ccbb2.jpg
This door will be exposed to heat on the inside but not naked flame. My question is what can I seal the door with to limit movement or swelling of the door due to moisture from the outside? Is timber perhaps a poor choice for this type of door and maybe I need to get one made up in steel.