Which of the construction furniture currently available actually have functions?

Pretty much everything if not everything.
Are you looking at certain features? i.e teleports, gilded altar?

Are you looking at certain features? i.e teleports, gilded altar?

Yes, that's what i meant.

Yeah you're able to make gilded altar and it'll then provide extra prayer xp when both of the burners are lit with clean marrentils.
Portal rooms are fully functioning as well, you can make teleport portals and make teletabs in study room I think it was.

You're even able to make a bank deposit box which works just like a regular bank in bedrooms.

Yeah you're able to make gilded altar and it'll then provide extra prayer xp when both of the burners are lit with clean marrentils.
Portal rooms are fully functioning as well, you can make teleport portals and make teletabs in study room I think it was.

You're even able to make a bank deposit box which works just like a regular bank in bedrooms.

Thanks, however I am certain that you haven't mentioned some as i recently learned that the repair bench exists.
So if anyone can remember anything else feel free to mention maybe we can summarize this post and pin it somewhere.

Everything that is available should be working if they have a function.
This is good for the most important stuff: https://emps-world.net/wiki/Construction#Useful_furniture