Although it is used for clothes washing in the room, the installation seems to be dedicated for clothes, so it was hard to install on the pillar of the wood in the room. You should be able to attach it to the wooden spot.
I installed a terrace roof on the veranda, but I installed it on that pillar. When installing it, it was possible to install it very easily because we used the "face-mounted parts (HP-8B-LB)". The operation was smooth, it was very good to purchase.