Where can one find the recommended measurements that should be used for e.g. stairs, railing

[Klicka]

Where can one read about the recommended dimensions that should be used for things like stairs, railings, etc.?

What is referred to as the "building code" in the USA.

 

[Casca]

Build AMA, unfortunately, I don't know which edition it is.

Sent from my GT-S5690 via Tapatalk 2

 

[Klicka]

Is it freely available to everyone?

 

[Mikael_L]

Some legal requirements can be found in the National Board of Housing, Building and Planning's building regulations BBR.

And you can check a bit here:
http://www.atab-trappan.se/index.cfm?id=9&l=2
http://www.olssonstrappor.nu/trappkunskap.html

There is surely more to find with Google.