My first floor ceiling now has a horizontal opening say .8 metres by .8 metres with a hatch bordered by a frame. When the hatch is opened you can grab the loft ladder and access the loft. Does the hatch need a mezuzzah. Can you place a mezuzah on the horizontal.
Here's my answer:
Dear Sir, Any door that is horizontal is exempt from a Mezuzah. In fact I have the same kind of hatch in my home here in Israel.
Aaron Shaffier MezuzahStore.com