[twitter-bootstrap] Removing padding gutter from grid columns in Bootstrap 4

How do you create a gutterless grid in bootstrap 4?

Is there an official API for removing the gutter or is it manual?

You can use the mixin make-col-ready and set the gutter width to zero:

@include make-col-ready(0);

You should use built-in bootstrap4 spacing classes for customizing the spacing of elements, that's more convenient method .

You can use this css code to get gutterless grid in bootstrap.

.no-gutter.row,
.no-gutter.container,
.no-gutter.container-fluid{
  margin-left: 0;
  margin-right: 0;
}

.no-gutter>[class^="col-"]{
  padding-left: 0;
  padding-right: 0;
}

Need an edge-to-edge design? Drop the parent .container or .container-fluid.

Still if you need to remove padding from .row and immediate child columns you have to add the class .no-gutters with the code from @Brian above to your own CSS file, actually it's Not 'right out of the box', check here for official details on the final Bootstrap 4 release: https://getbootstrap.com/docs/4.0/layout/grid/#no-gutters