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Replace original intermediate floor in Skåne farmhouse
Currently in the process of renovating a Skånelänga. I've now reached the point where it's time to examine the floor joists. Many of the current beams are rotten and need to be replaced. They appear to be about 5x5 inches today with a spacing of approximately 1-1.20 meters (visually estimated around 13-15 cm * 13-15 cm).
How should I best replace these? I've seen solutions where they are swapped out for fresh beams, maintain the spacing but then build a load-bearing structure on top, resulting in a floor joist that is about 40 cm thick while retaining the old style visually.
If I just want to replace the old rotten beams, so as to tackle one task at a time, can I retain the same width structurally? Or do I need to relieve the load in the middle with some connecting beam? The area in question currently is 5.5x5 meters and of course, I'd prefer not to have anything in the middle, but the cost will determine, this is only the guest house.
- That is, can the classic Skånelänga beam in fresh execution be self-supporting over 5.5 meters with 1.20 centers (they probably need to be 6 meters long to also reach the load-bearing walls)? If I have the area open up to the peak versus putting a floor on top, how does that affect the beam requirement?
How should I best replace these? I've seen solutions where they are swapped out for fresh beams, maintain the spacing but then build a load-bearing structure on top, resulting in a floor joist that is about 40 cm thick while retaining the old style visually.
If I just want to replace the old rotten beams, so as to tackle one task at a time, can I retain the same width structurally? Or do I need to relieve the load in the middle with some connecting beam? The area in question currently is 5.5x5 meters and of course, I'd prefer not to have anything in the middle, but the cost will determine, this is only the guest house.
- That is, can the classic Skånelänga beam in fresh execution be self-supporting over 5.5 meters with 1.20 centers (they probably need to be 6 meters long to also reach the load-bearing walls)? If I have the area open up to the peak versus putting a floor on top, how does that affect the beam requirement?
Have some pictures of the current joist.
http://byggblogg.inorp.com/wp-content/uploads/2007/09/img_1373.jpg
http://byggblogg.inorp.com/2007/08/30/stodvaggar-fonster-altandorr-mm/
What might not have been clear above is that I will also replace the beams and run them in the opposite direction. That is, between the long sides instead of pointing in the longitudinal direction. The rest of the skånelänga has the beams between the long walls, and it's about an additional 12 meters in length. These generally have walls here and there to rest on, except in one room where a large beam is bolted on top. This becomes less stylish if I choose to have it open up to the ridge in this 5x5 room.
http://byggblogg.inorp.com/wp-content/uploads/2007/09/img_1373.jpg
http://byggblogg.inorp.com/2007/08/30/stodvaggar-fonster-altandorr-mm/
What might not have been clear above is that I will also replace the beams and run them in the opposite direction. That is, between the long sides instead of pointing in the longitudinal direction. The rest of the skånelänga has the beams between the long walls, and it's about an additional 12 meters in length. These generally have walls here and there to rest on, except in one room where a large beam is bolted on top. This becomes less stylish if I choose to have it open up to the ridge in this 5x5 room.
As a comment, I received a quote today for 5x5" beams, 6 meters long in spruce, 52:- per meter + VAT. For 6"x6" they wanted 72 + VAT and delivery would be about 2000:- + VAT in rough terms. Doesn't seem too expensive.
The question is more about what these would withstand.
The question is more about what these would withstand.
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