In my summer cottage, there are 4 pillars that support the porch roof, which is a continuation of the rest of the roof.
The cottage (Norwegian manufacturer) was built in 1968, and its pillars are made of glued laminated timber with the dimensions 127 x 70 x 1800. One of them now has such a rotten lower part that I need to replace it, the other 3 are in good condition.
However, I am struggling to find corresponding dimensions today.
How can I best fix this?
Cut from a larger dimension, glue together a custom laminated timber beam?
Is there a company that can provide custom-sized laminated timber?
Combine three pieces of 45*70 to create a 135*70 column. If there's a spot where it can't be wider than 127 to fit, chisel it out there with a chisel. That should hold well enough. I did this to support a substantial laminated beam over the garage doors according to instructions from Swedish Wood (or whatever they were called), though I probably used a 120-stud in my case. But they probably carry quite a bit more than in your case with the patio roof.
Put together three pieces of 45*70 and you'll get a 135*70 pillar. If there's a place where it can't be wider than 127 to fit, just carve it out with a chisel right there. It should hold just fine. I did this to support a hefty glue-laminated beam over garage doors according to instructions from Svenskt Trä (or whatever they were called), though I probably used a 120-regel. But they can likely bear a lot more than in your case with a patio roof.
I glued and screwed mine together.
Yes, that seems like a neat solution. The lower part stands on a steel spacer, and on the top a strong horizontal glue-laminated beam rests against the pillar's end grain, so there are no limitations and 7 mm difference isn't noticeable to the naked eye.
Glue and screw it will be, and fill the screw holes with glue and sawdust, or plastic wood. Everything will be painted with black facade glaze.
A picture of the old glulam beam that has also started to separate at the gluing.
It was quite a bit of hassle because the 45x70 boards had rounded corners. Since I lack a planer, I filled the gaps that appeared between the boards with outdoor sealant in several rounds. Now remains a second coat of black stain, or possibly a third if the white base still shows through. The whole thing cost just over 200 SEK.
Thanks to "thomasx" for a great suggestion.
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