Gday helpful people, I'm at again.
This time it's time to put in a new front door. Originally planned to just replace door but I'm guessing since its so old, the door is only 35mm thick and the door jamb only slightly bigger. A little too small for a modern 40mm door. So new door jambs too?
This is where I'm a little perplexed.
House was built in the 50's maybe 60's at the latest. Double brick walls.
Looking at the entrance way, the external dimensions are smaller than the internal.
Hopefully this is evident in the photo's.
https://www.renovateforum.com/attach...b-img_2696.jpg
Vertical outside about 50mm.
https://www.renovateforum.com/attach...b-img_2695.jpg
Vertical inside about 70mm.
https://www.renovateforum.com/attach...b-img_2691.jpg
Top inside 85mm.
https://www.renovateforum.com/attach...b-img_2690.jpg
Top outside 40mm.
So it looks to me that the door frame is attached to the inside brick layer only. In saying that I don't think its a single layer on the inside. Its about 200mm from the inside corner to the out side of the door frame.
The whole jamb itself is only about 100mm wide and along the side about 45mm thick back to the rendered wall and 60mm thick along the top to the render.
So I guess the question is, Is the internal brick skin opening larger than the external? Is this how it is/was done? I'm guessing there would have to be a lintel above the opening on the internal skin as well?
Now there is plenty of room on the inside to put in a 140mm door jamb to accommodate door and screen but since they seem to be 30mm thick, will all I have to do is bulk it out another 10 - 20 mm. This would be easy enough to do to get a thicker jamb. I'm not overly concerned about attaching everything and putting the door up, have put up a few doors before but in timber frame houses. I just would like to get a bit of an idea whats behind the quad and door frame before I pull it out. That way I can make sure I have all the necessary materials on hand.
Anyway if anyones got any idea what might be going on here I would certainly appreciate your help.
cheers
Shane