I went and took a picture of the butcher block I put in for my wife in our basement laundry room. If you go to the store and buy one make sure you open the box before you get home and make sure it is not warped. Some are. If it hasn't warped yet it shouldn't as long as you don't store it outside before polying it. Also if you poly it make sure you do all sides or it will warp. I did this about 2 years ago. I think from Ikea it was about $100. You may need to cut it to size as well.
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/rv6Kl8VMjnYP99UXNB7rrQ?authkey=Gv1sRgCLWg372ooJiBQQ&feat=embedwebsite"><img src="http://lh3.ggpht.com/_gyA2MJjiLlg/S0nrM22OKAI/AAAAAAAAAM4/RMnjjoUdNGQ/s800/IMG_4394.jpg" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/mike.4324/Ikea?authkey=Gv1sRgCLWg372ooJiBQQ&feat=embedwebsite">Ikea</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/boD9_puZQXy_FC7VOXAkQg?authkey=Gv1sRgCLWg372ooJiBQQ&feat=embedwebsite"><img src="http://lh3.ggpht.com/_gyA2MJjiLlg/S0nrNKTZU4I/AAAAAAAAAM8/oxJvc6QzbKc/s800/IMG_4395.jpg" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/mike.4324/Ikea?authkey=Gv1sRgCLWg372ooJiBQQ&feat=embedwebsite">Ikea</a></td></tr></table>
I think this may be it on the their website but I would check in the store;
http://www.ikea.com/us/en/catalog/products/60057852