IMHO The majority of the DT's weight bared by the stand is done the stands corners, hence, when I needed to upsize the sump for my 90 gal tank, I cut the front middle center brace, inserted the larger sump, then used bar stock along the full width of the sump's "space with bar stock and added another piece of bar stock from the bottom of the DT to the bar stock below. This has stood w/o issue for over 2 years now.