Hello
I have a small project involving building a larger zip line, which starts about 3.5 meters up in a tree (the cable runs about 4.8 meters above the ground).
In the project, I have consulted with a company that specializes in such things and also follow the EU standards for constructions of this kind, so I know what I'm doing
But when it comes to the platform itself, I'm not 100 percent sure how to do it.
The platform's surface is intended to be about 2x2 meters and, as mentioned, 3.5 meters up.
I wonder what dimensions I should use for the posts and how I should secure them in the ground.
At first, I thought of using 95x95 and fastening with four post shoes in the corners, but when I set one up 4.2 meters in the building supply store, it feels enormously large and heavy and seems like it could make the construction more wobbly than with lighter wood. So a dimension of 75x75 (or 70x70?), with joists for the platform at 45x95 for example, could that be sufficient?
And post shoes, is that perhaps wrong? At the same time, cast shoes feel very over-engineered, but maybe they're needed? Digging in for those right next to a tree also seems difficult, with all the roots that are presumably there.
I have a small project involving building a larger zip line, which starts about 3.5 meters up in a tree (the cable runs about 4.8 meters above the ground).
In the project, I have consulted with a company that specializes in such things and also follow the EU standards for constructions of this kind, so I know what I'm doing
But when it comes to the platform itself, I'm not 100 percent sure how to do it.
The platform's surface is intended to be about 2x2 meters and, as mentioned, 3.5 meters up.
I wonder what dimensions I should use for the posts and how I should secure them in the ground.
At first, I thought of using 95x95 and fastening with four post shoes in the corners, but when I set one up 4.2 meters in the building supply store, it feels enormously large and heavy and seems like it could make the construction more wobbly than with lighter wood. So a dimension of 75x75 (or 70x70?), with joists for the platform at 45x95 for example, could that be sufficient?
And post shoes, is that perhaps wrong? At the same time, cast shoes feel very over-engineered, but maybe they're needed? Digging in for those right next to a tree also seems difficult, with all the roots that are presumably there.
No one has any comment regarding the bearing capacity?
If I use, for example, 45x120 as posts, will that be sufficient?
The platform will also be attached to the tree.
If I use, for example, 45x120 as posts, will that be sufficient?
The platform will also be attached to the tree.