ussualy the row has ‘auto-height’ so it doesnt have fixed height but based on content. If you want to have exactly same row, then there several ways of how to do it.

1) In your ‘Theme Options > General Options’ is custom style field. You can place there your specific row height, for example:

But this is not recommended since it can brake your layout consistency (in the manner of to much empty space, etc..)

2) Create your custom row class, lets call it my_row and add into custom CSS following:

Then when you edit row element in visual composer, scroll down in options, click ‘Yes’ on ‘Use Advanced Global Attributes’. And add my_row into ‘Extra CSS Class’.
This way you can affect height directly on those rows you wish to have with specific value. And not globally.

Let us know please if you need any further help with this.
Bye

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