IT IS A SOLID BOTTOM STAND. IT WAS MADE BY THE TANK MANUFACTURER. ONE PIECE OF WOOD EXTENDS FROM SIDE TO SIDE. IT WOULD HAVE TO BEND 4 PIECES OF WOOD, 2 ON TOP FRONT AND BACK AND 2 ON BOTTOM FRONT AND BACK. THE TANK IS SOLID ON THE STAND, NO ROCKING OR MOVEMENT AT ALL, VERY SOLID.
OK I HAVE BOUGHT A 125 GALLON TANK AND COMMERICAL STAND. I HAVE PLACED IT ON CARPET ON A CONCRETE FLOOR. THE CONCRETE HAD A DIP ON ONE END. I HAVE LEVELED THE TANK PERFECT WITH HARD WOOD. HOWEVER THERE IS A 1 1/2 FOOT SECTION ON THE FRONT AND BACK THAT HAS ABOUT A 1/2 INCH GAB UNDER IT...