What wood is used to make the interior braces for a mame bartop made of MDF?

[rs207200]

So, I'm going the route of making a cabinet solely with glue and potentially drywall screws.  the cabinet is made of mdf, what type of wood do I use for the interior braces of the cabinet?  Here is a picture I found on google to show what I mean by "braces" for the interior:

[Drnick]

Usually Pine. may be known as pine furring strips.

[JDFan]

Those seem to be poplar -- similar to these 3\4 square pieces from Home Depot ( http://www.homedepot.com/p/t/202287698?productId=202287698&storeId=10051&langId=-1&catalogId=10053&MERCH=REC-_-product-2-_-202287699-_-202287698-_-N#.UXgL5cqG40U ) or if you have a table saw you can use some cheap Furring strips like this ( http://www.homedepot.com/p/1-x-3-x-8-Furring-Strip-Board-164704/100088011#.UXgMycqG40U ) 1x3 strips and cut them into 3\4 inch squares (the actual thickness of the 1x's are 3\4 inch thickness so wit one of these boards you can get about 3 8 foot lengths of  3\4 inch squares for $1.60 instead of a single 3 foot length of precut poplar for $2.84 !!

[kahlid74]

I've used pine, hard wood (oak) and plywood for furring strips.  As long as you've got a good 3/4" or more on sides you should be good to go.  The glue bonding to wood is where the strength comes from.