Just something about precision

[collinb]

From architecture hub: 
"The oldest door still in use in Rome. Cast in bronze for emperor Hadrian's rebuilding, they date from about 115 AD. Each door is solid bronze seven and a half feet wide & twenty-five feet high, yet so well balanced they can be pushed or pulled open easily by one person.”

Now, who’s going to be owning my projects in just 50 years?

[Tom King]

I'd like to know about the hinges.

[treeslayer]

44 minutes ago, Tom King said:

I'd like to know about the hinges.

Blum Soft-Close , cool doors @collinb

[difalkner]

Wow!  And I thought the large wooden doors at Vanderbilt's mansion were amazing.

David

[Immortan D]

1 hour ago, Tom King said:

I'd like to know about the hinges.

Seems like their goddess Cardea is still protecting those hinges. 

"Cardea was the ancient Roman goddess of health, thresholds, door handles, and hinges. Her name comes from cardo, meaning door-pivot. She protected children against vampires and witches, and was also the benefactress of craftsmen."

(from https://www.dullmensclub.com/did-you-know-in-rome-there-was-a-goddess-of-hinges-cardea/)

 

[RichardA]

1 hour ago, Tom King said:

I'd like to know about the hinges.

The hinges are twelve very old Romans, six per side that hold the door as it moves. : }

[Chet]

You certainly wouldn't want to get your fingers caught in those doors. 

[JohnG]

An old friend of mine built some huge steel doors (not as big as OP’s pic, obviously) for a stone supplier to display large pieces of marble/granite on both sides. They were so big and heavy, and swung so easily that they had to add some dampers to keep them from crushing someone on the other side. 

[Mick S]

7 hours ago, Immortan D said:

"Cardea was the ancient Roman goddess of health, thresholds, door handles, and hinges. Her name comes from cardo, meaning door-pivot. She protected children against vampires and witches, and was also the benefactress of craftsmen."

She was kinda the Swiss army knife of goddesses.