Typical grid

2 columns
5 columns
3 columns
2 columns
1 column
1 column
1 column
1 column
1 column
1 column
1 column
1 column
1 column
1 column
1 column
1 column

Offsets

4 columns
4 columns
4 columns

No column gutters

.l-row.m-gutterless
6 columns
6 columns
6 columns

No row

equivalent to .l-row.m-gutterless
6 columns
6 columns
6 columns

No row (gutterless), forced-fluid

.m-fluid
6 columns
3 columns
3 columns