Hi @jacobm If there is a joist within 150mm from the edged opening, I would be happy that you're not going to suffer from the edge of the floor/yel ...

Hi @jacobm, The yellow tongue needs to be supported on all edges as per the installation guide. The tounges or trimmers ensure the boards don't sag ...

Hi @jacobm, Thank you for your question and welcome to the Bunnings Workshop community, it is fantastic to have you with us. I can't say I'm certa ...

Hi @jacobm I definitely wouldn't be going to the extend of using timber. There is nothing structural here and timber wont provide an air seal witho ...