I have this box I bought on Ebay, its big enough for the short term while my bigger one is being made, and it seems to keep ok RH, but one corner of the lid does not sit totally flush, I can feel a slight movement when I push down on the corner, is there a way to remedy this without major work? Like a weather-seal type of material or some other DIY stuff?
Here is the box opened and closed:
And...
