Cellar conversion with pics
Discussion
Many months ago i hit upon an idea of converting my under used cellar into a "kids playroom".
My brother in law lent me his SDS drill and i hacked into a wall to explore what laid underneth my floorboards.
After much deliberation and exploration, we found that the whole of the ground floor of the "original" house could be replicated under our feet.
We are now 3 weeks into a much bigger project than planned, but i have kept an updated diary which you are welcome to view if interested. The finished basement should be approx. 80sq/m plus and we will wait until we have finished tanking the whole area out, before we decide on what the final layout will be.
http://cinquecellarpproject.blogspot.com/
For the record, the house was built in 1896 and the ground floor is suspended timber joists. Excavation of mainly building rubble from the initial house build is happening through a later 1950's garage addition to the front of the property. The new basement will have a min. headroom of 2.4m (more like 2.6-7m when finished) and there will be no visible support columns at all. All support will be via 10-12 steel RSJs, hidden beneath a suspended ceiling.
If theres enough interest, i will keep the diary updated.
My brother in law lent me his SDS drill and i hacked into a wall to explore what laid underneth my floorboards.
After much deliberation and exploration, we found that the whole of the ground floor of the "original" house could be replicated under our feet.
We are now 3 weeks into a much bigger project than planned, but i have kept an updated diary which you are welcome to view if interested. The finished basement should be approx. 80sq/m plus and we will wait until we have finished tanking the whole area out, before we decide on what the final layout will be.
http://cinquecellarpproject.blogspot.com/
For the record, the house was built in 1896 and the ground floor is suspended timber joists. Excavation of mainly building rubble from the initial house build is happening through a later 1950's garage addition to the front of the property. The new basement will have a min. headroom of 2.4m (more like 2.6-7m when finished) and there will be no visible support columns at all. All support will be via 10-12 steel RSJs, hidden beneath a suspended ceiling.
If theres enough interest, i will keep the diary updated.
Laurel Green said:
Looks like an interesting project. A fair 'few' skip-loads there I'd wager + a lot of backache.
The builders have estimated between 30-35 skips. We are up to 8 so far and only a third in. The distance between the bottom of the underpin trench to the bottom of the ground floor joists will be 2.9m, allowing for the new floor slab/insulation/suspended ceiling/ventilation etc.s1962a said:
Did you have to reinforce your existing foundations? I mean, if you dig down you'd be exposing them.
Every external wall has to be underpinned, including the shared internal wall. You can make out the existing foundations and where they were "trimmed" off in the photos.The front of the house will be underpinned by approx. 2m and stepped to appprox. 50cm towards the back, as the house is on an incline.
It's essential to get the propping and support work right, otherwise you end up with an expensive pile of bricks!
How big is your fecking house!?
80sq ft floor!
Good to see its not a nursery only: http://pistonheads.com/gassing/topic.asp?h=0&t...
80sq ft floor!
Good to see its not a nursery only: http://pistonheads.com/gassing/topic.asp?h=0&t...
Quick update for those still following .....
Progress has been steady and remarkably swift and trouble-free so far.
Exsisting house is over 50% underpinned and new floorslabs have started to go down.
We have discovered further space at the back of the house that we can excavate fully which would take us into the back patio and garden. This would gain an extra 27-30m/sq. and allow a possible light-well or glass bi-folds upto the garden, but still awaiting costings on this.
Progress has been steady and remarkably swift and trouble-free so far.
Exsisting house is over 50% underpinned and new floorslabs have started to go down.
We have discovered further space at the back of the house that we can excavate fully which would take us into the back patio and garden. This would gain an extra 27-30m/sq. and allow a possible light-well or glass bi-folds upto the garden, but still awaiting costings on this.
Those are the very same patten splice plates as I have installed here on site to my 203 UC's .
12 M16 nuts and bolts top and bottom with 4 in the central web.
In fact we had the mother of all strops from the consultant structural engineer, as he had drawn a 8 bolt plate for the web, but my fabricators went with the norm and supplied as you have there.
Fantastic project, I would love to be able to gain that much extra space. It must make you feel very lucky.
A defo bookmarked thread.
Good luck with the rest of the build.
Edit: to add pic from my site of said steels and splice plate.
12 M16 nuts and bolts top and bottom with 4 in the central web.
In fact we had the mother of all strops from the consultant structural engineer, as he had drawn a 8 bolt plate for the web, but my fabricators went with the norm and supplied as you have there.
Fantastic project, I would love to be able to gain that much extra space. It must make you feel very lucky.
A defo bookmarked thread.
Good luck with the rest of the build.
Edit: to add pic from my site of said steels and splice plate.
Edited by CedGTV on Friday 7th January 22:44
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