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I'm looking to hang an aerial yoga hammock in our garage from 2 attachment points. I'm based in Australia which might change some of my measurements/ratings so sorry in advance!

I can use a manhole to access one third of the ceiling. The rest of the ceiling is under our second level, blocked by an i-beam with the brick wall on it (flanges are around 7mm thick).

The part I can access has MGP10 rated joists around 35x90mm in size.

So my question is: can eye hooks be used directly in the joists/flange as long as they are correctly rated and supported on top with a washer/plate? Or would spanning a large beam across multiple joists then drilling into that (or another solution) be the preferred method here?

It's not a passive hammock, so due to jumps/drops of a few feet most guides recommend around 800kg+ bearing capacity to avoid surprises.

Hiring a specialist is another option but most guides recommend finding a certified rigger which doesn't seem to be getting many matches around here (maybe we call them something else).

Edit:

Photo inside roof: https://imgur.com/MwCyOE4

Some rigging ideas: https://www.aerialyogaonline.com/rigging-residential/

  • Hello, and welcome to Home Improvement. It's going to be difficult for us to give you any sort of reliable answer on this. And, you should probably take our tour so you'll know how best to participate here. – Daniel Griscom Oct 18 at 11:01
  • How far do your joists span? (Clear dimension from support to support.) – Lee Sam Oct 18 at 15:31
  • @LeeSam it's a little inconsistent as it's near a corner and the manhole so they vary in size. I have added an image. The closest (longest) is 190cm between eaves and i-beam however it isn't attached to the i-beam, just resting. The end at the eaves is cut triangular then attached to the upper beams with a connector plate. Space between joists is 56cm. – Nick P Oct 19 at 9:16
  • No, I would not drill all the way through a ceiling joist. The size of hole needed for your eye bolt will weaken it. How far apart do you need your attachment points to be? – Mattman944 Oct 19 at 13:21
  • @Mattman944 yes I figured the joists were too narrow. The distance is not very strict but around 55cm would be ideal. – Nick P Oct 20 at 0:48

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