I'm considering creating a swing with a substantial span. We have two birch trees standing parallel for this purpose. The idea is to attach the swing set-up six to seven meters up in the air. However, the question is what to use as the crossbeam where the swing's chain will be attached? We don't have a sturdy branch that can be used for this.
A type of sturdy hässjarova could work. Steel pipes are another option. The question is how to attach the crossbeam to the birches. Bolts feel sturdier than nails regardless of size. The swing is intended to support people up to 100 kg.
Grateful for any tips!
A type of sturdy hässjarova could work. Steel pipes are another option. The question is how to attach the crossbeam to the birches. Bolts feel sturdier than nails regardless of size. The swing is intended to support people up to 100 kg.
Grateful for any tips!
How far apart are the birches? You should not nail or screw into the birches at all because they are alive. Additionally, the birches need to be able to move when it's windy, as the distance between them varies in strong winds. Sturdy ropes and good knots allow you to attach a pressure-treated beam. The height of the beam is determined by the span.
You can probably find some galvanized water supply pipe 70--100mm in diameter at a scrapyard. If you then use pipe clamps or weld a flat iron (50cm) on each side of the pipe, in line with the trees, you can better secure them to the trunks with rope, as fn76 mentioned.
I should clarify, I meant that the flat irons, or whatever you choose, should be angled against the horizontally lying pipe to get a bit more contact with the trunks and better to tie in. It's nothing to play with such an overhead beam, especially when there are children on the swings. Otherwise, you can also tie a beam or post 70x70 against the trunk, from the ground up to the pipe, as support for it.
I should clarify, I meant that the flat irons, or whatever you choose, should be angled against the horizontally lying pipe to get a bit more contact with the trunks and better to tie in. It's nothing to play with such an overhead beam, especially when there are children on the swings. Otherwise, you can also tie a beam or post 70x70 against the trunk, from the ground up to the pipe, as support for it.
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