Expanding the depth of the Besta 70" tV console
TV bench from Ikea to hold a 77" S90D 80 lbs. two 47" Besta or a Brimnes?
Why is the Besta 70in TV unit $80 while the exact same thing (as far as I can tell) with legs ($10 each?) and a couple of doors $300 to $400? Can I just buy the $80 version and add legs and/or doors separately myself?
Can I use this as a TV stand?
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I am designing a custom "media wall" for my basement using the Besta planning tool. So far I have found a configuration that I like and that fits my space well, but I am concerned about the depth of the main TV stand unit (http://www.ikea.com/us/en/catalog/products/10299877/#/70299879). I have a few components that require at least 18" of depth (preferably more, maybe 20-22"... this depth would actually work nicely in my space). I'm OK with the shallower depth of the rest of the pieces but would like to make this piece deeper.
Would it be feasible to build a 3/4" x 6" frame out of 3/4" plywood, and then join it to the back of the Besta unit using pocket holes + pocket screws to extend the depth? I would most likely just leave the backer board off of the unit, and either fasten it onto the new extended back or just leave it off completely.
Two concerns / questions with this:
My understanding is that the besta units use a combination of plywood and honeycomb construction. Am I going to have issues attempting to fasten new wood onto the back of the unit?
Would removing the backer board cause a problem? I am thinking my new backing frame would make up for any strength lost by removing the backer board.
Obviously I would need to paint it to match (probably going with white), and deal with the inner shelves being shallower, but I think I can work around those issues.
Has anyone attempted something like this? Or would I be better off just having someone custom build this piece to the same dimensions? I like the idea of using the Besta if possible because then all of the accessories (doors, hinges, drawers, shelves) are guaranteed to fit without any fuss.
https://www.ikea.com/us/en/p/brimnes-tv-unit-black-40569486/ (max tv weight 66lbs)
https://www.ikea.com/us/en/p/besta-tv-unit-white-stained-oak-effect-00576002/ (max 35 lbs each)