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- 14 Feb 2021
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Hi
I was wondering if anyone could give me some advice on placing a beam in my attic. I have a 1930s house with a purlins supporting the rafters of the roof. They have suprisingly liitle supportung them. A builder has supported the two largest down onto walls belows using a couple of thick posts. Looks strong. The two smaller purlins have no wall beneath them at any point.
So I want to run a timber beam beneath them and put posts up from the beam to support the purlins. The beam needs to be 4m long.
I want to make the beam from laminating lengths of 2x12 together rather than using steel as i am working on my own. The longest length of timber i can get through the hatch is 3.6m. (Beam needs to be 4m). So my question is , is there a way of bolting say 4 lengths of 3.6 together to make a 4m length beam with comparable strength to full 4m lengths. I can make a hole in the gable end easily enough and that seems best but was just curious if bolting shorter lengths to make a longer length is possible.
Any asvice is very much appreciated.
I was wondering if anyone could give me some advice on placing a beam in my attic. I have a 1930s house with a purlins supporting the rafters of the roof. They have suprisingly liitle supportung them. A builder has supported the two largest down onto walls belows using a couple of thick posts. Looks strong. The two smaller purlins have no wall beneath them at any point.
So I want to run a timber beam beneath them and put posts up from the beam to support the purlins. The beam needs to be 4m long.
I want to make the beam from laminating lengths of 2x12 together rather than using steel as i am working on my own. The longest length of timber i can get through the hatch is 3.6m. (Beam needs to be 4m). So my question is , is there a way of bolting say 4 lengths of 3.6 together to make a 4m length beam with comparable strength to full 4m lengths. I can make a hole in the gable end easily enough and that seems best but was just curious if bolting shorter lengths to make a longer length is possible.
Any asvice is very much appreciated.