Attach Hanging Chair to Glulam Beam with Trapezoidal Hook?

[Viktorbyggahus]

I have a hanging chair that I want to suspend in a room. There is a strong glued laminated beam in the ceiling.

Is a large trapeze hook with wood threads enough to hang it? (or is something else needed?)

And is it best to hang the hook on the side or directly downwards?

The hanging chair is supposed to hold up to 150kg according to the description, but I doubt we will ever have more than 90kg load.

 

[atomlab]

Just find 2 hooks that can hold 75kg and it will be fine.

An 8mm hole with a wood screw holds for 410kpa. Which is more than enough.

 

[Viktorbyggahus]

Do you think a hook fastened with 4 of these screws will be enough? I got a hook with 4 holes for screws. They are quite long and intended for wood. But unsure if they can hold under load.

 

[fredrik.johansson]

It can be calculated exactly, but I don't have such tables, though my gut feeling says that 4 such screws and 150 kg weight must be severely over-engineered. I wouldn't be surprised if it holds five times the weight. They are way too long, but sure, they can be used, though anyone unscrewing them one day will wonder what the "previous owner" was up to...