So I am getting very close to getting my workshop set up (finally). I still want to build a Roubo style workbench, I have gone back and forth between two large slabs with one seam and multiple 2x4 glued up to make the solid top. Now I was looking at Sears and they have a butcher block top that is the perfect size, 1.5x24x72. http://www.sears.com/shc/s/p_10153_12605_00914961000P?adCell=MC_to_Product Well, perfect length and width, but not thick enough. So I start thinking to my self, why not buy two of them @$110 each and glue them together to make a top that is 3" thick. IMO that is plenty thick for any work I am going to be doing. Some of my concerns are holding both tops down tight and getting a good glue bond. Then I wonder if I will need some dowels going thru both tops to help hold them from slipping. Then I think it might need a "frame" around the top maybe with some dovetail joinery to give it a nice look. If I am going to dowel them together I can pre-drill the holes and use bolts to help hold the two tops down in the middle of the glue up, then remove the bolts and drive dowels in.