Is it enough to make a step of 8px so that the layout designer does not have to rack his brains with an adaptive?

Question

Adaptive design

I am a designer. Almost always used bootstrap grid of different sizes.
When creating the next layout, I encountered the fact that the site will be divided into 3 blocks and the outer ones will be glued to the edges of the screen. Is it enough to make a step of 8px so that the layout designer does not have to rack his brains with an adaptive?

Answer 1

The adaptive step won't help.
We need layouts with different arrangement of content blocks for different screen resolutions.