This started as a blog. But as soon as I’d written: ‘it was a door, but it’s not a door anymore’ I knew the genre had to be country and western. Not sure what the tune is, but it would fit to plenty of country tunes I recon. 
 
Apologies for the following …..
 

Back Door Blues 
 
It once was a door
Open onto the heath*
Then I felt the cold floor 
From the breeze blocks beneath
 

Ohhhoooo …. The door
Just isn’t a door
Anymore
  
Oh it once was a door
Open onto the heath
Then we found the wood floor
Wouldn’t fit underneath
 

Ohhhoooo …. The door
Just isn’t a door
Anymore

 

Oh it once was a door
Open onto the heath
Then I felt the wind blowing raw
From the leak underneath 

 
 Ohhhoooo …. The door
Just isn’t a door
Anymore

Oh it once was a door
Open onto the heath
But it just wasn’t convenient to have a door there as it got in the way of the layout of the sitting room 

Ohhhoooo …. The door
Just isn’t a door
Anymore

 So it’s no longer a door  

I’ve admitted defeat 

It’ll be fixed shut for evermore 
With a sill and kingspan beneath

 
Ohhhoooo …. The door
Just isn’t a door
Anymore

* it’s not a heath, it’s a bog/moor. Which is a bit like a heath but wetter.