Edit in JSFiddle

$( function() {

    $('#container').masonry({
        itemSelector: '.item',
        columnWidth: 70
    });

});

<div id="container">
  <div class="item"></div>
  <div class="item w2"></div>
  <div class="item"></div>
  <div class="item w2"></div>
  <div class="item h2"></div>
  <div class="item"></div>
  <div class="item h2"></div>
  <div class="item w2 h2"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item h2"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item w2"></div>
  <div class="item h2"></div>
  <div class="item"></div>
  <div class="item h2"></div>
</div>

body {
    font-family: sans-serif;
}

#container {
    border: 1px solid;
    padding: 5px;
}

.item {
    width: 60px;
    height: 60px;
    float: left;
    margin: 5px;
    background: #CCC;
}

.item.w2 {
    width: 130px;
}

.item.h2 {
    height: 130px;
}