A really simple Sass grid.

_sgrid.sass

/*
 * A Really Simple Sass Grid
 * Forked from "Don't Overthink It Grids" by Chris Coyier http://css-tricks.com/dont-overthink-it-grids/
 * Supported in IE8+
 */

// Variables
$sgridPadding: 20px
$sgridMinColumns: 3
$sgridMaxColumns: 6

// Grid
%sgrid-box-sizing
  +box-sizing(border-box)
.sgrid
  margin-left: $sgridPadding
  margin-bottom: $sgridPadding
  @extend %sgrid-box-sizing
  &:after
    content: ""
    display: table
    clear: both
%sgrid-col
  float: left
  padding-right: $sgridPadding
  @extend %sgrid-box-sizing
=sgrid-col($one,$all)
  width: ((100%/$all)*$one)
  @extend %sgrid-col
$a: $sgridMinColumns
$m: $sgridMaxColumns
@while $a <= $m
  $o: 1
  @while $o <= $a
    .col-#{$o}-#{$a}
      +sgrid-col($o,$a)
    $o: $o+1
  $a: $a+1