I suggest looking reading up on how the bootstrap grid works and how you can nest rows within rows.
Here's a rough mockup of how you could acheive your design with bootstrap
<!-- begin snippet: js hide: false -->
<!-- language: lang-css -->
.mygrid {
text-align: center;
}
.mygrid div {
border: 1px solid grey;
}
<!-- language: lang-html -->
<link href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/css/bootstrap.css" rel="stylesheet"/>
<div class="container">
<div class="mygrid">
<!-- Top Half -->
<div class="row">
<div class="col-sm-2">
<div class="row">1</div>
<div class="row">2</div>
</div>
<div class="col-sm-4">
3<br/>
3.5
</div>
<div class="col-sm-2">
<div class="row">4</div>
<div class="row">5</div>
</div>
<div class="col-sm-2">
<div class="row">6</div>
<div class="row">7</div>
</div>
<div class="col-sm-2">
<div class="row">8</div>
<div class="row">9</div>
</div>
</div>
<!-- Bottom Half -->
<div class="row">
<div class="col-sm-6">
<div class="row">
<div class="col-sm-8">10</div>
<div class="col-sm-4">11</div>
</div>
<div class="row">
<div class="col-sm-4">12</div>
<div class="col-sm-8">13</div>
</div>
</div>
<div class="col-sm-4">
14<br/>
14.5
</div>
<div class="col-sm-2">
<div class="row">15</div>
<div class="row">16</div>
</div>
</div>
</div>
</div>
<!-- end snippet -->
I added the .mygrid
class just to help set some styles on the grid, but it's not necessary.