How can I create a relatively complex grid where I will have multiple header values spanning a mix of multiple columns and rows?

I'm trying to create a grid for data entry in a Windows Forms desktop application that would look something like the following:

Outside Pier
Wind Loads			Seismic Loads
Vertical	Horizontal		Vertical	Horizontal
	Radial	Tangential		Radial	Tangential
<data>	<data>	<data>	<data>	<data>	<data>

Are tables structured like this supported, or should I be looking at creating my own control / set of controls?

Also, for clarity, this DataGridView is not the entire content of the form being built.  It is just one "section" of the data being entered on the form.