I recently found a really good deal on some 2 3/4" red oak flooring that I currently need. The only catch is that it does not have T&G on the ends. I've been reading through the forum, and found conflicting answers on this, so I wanted to ask before I buy any of this lumber.

Is it okay to install this with T&G sides, but only butt ends? Or should I buy a router set and add T&G to the ends?

Any help would be greatly appreciated! Thanks!!

If you like to have the butt-joints secured, the best thing would be to buy a growing bit for floors and then spline the ends. This would be much better than having factory ends which go together sloppily so the ends don't interfere with sliding the boards together as the floor is laid. Spline for flooring is sold by the foot at distributors. I make my own using quarter inch thick oil tempered masonite and bevel the edges so it slide into place. You still need to fasten the ends within 3" of the butt-joint on both boards.
EZ Groove is the bit I recommend, made near Seattle WA.
A faster method would be to glue the butt-ends, if you don't have a paper moisture barrier under the flooring, and lay the flooring directly on the sub-floor.,