Admin Template without Boostrap

almost all administrator template are made with Boostrap, so semm all same.

In professional apps, the need is have many thinks in little space.

extjs framework have a lajout very compact es. http://www.patrimonioculturale-er.it/webgis/

there is a template like this ?

Would be nice !!

ExtJS is a paid library which costs $900 with minimum amount of licenses - 5, so $4,340. Nobody will do that, because nobody will be able to resell source code.
Bootstrap is a free library, that’s why all admin templates are based on it.

I know !!

My question is, there is anyone that make a layout like http://www.patrimonioculturale-er.it/webgis/ ,

without extjs ?