Hi Adam -- It's hard to answer this for sure without knowing more about the strength of this material, but the fact that this base has 3 columns in the center of the bed that go all the way to the ground is a good sign. But I do think that as a base goes, this looks like a solid option to have under the foundation in terms of holding your weight without sagging.

My bigger concern is that unlike with a slatted base, for which we recommend not having slats that are more than 3 inches apart, the open squares on this base seem like they are larger than 3 inches. What worries me about that is that the springs could effectively want to get squeezed through those rather large holes. The only thing holding the individually pocketed springs together is a) glue on the fabric pockets, and b) a thin layer of foam under the springs. I would worry that these forces would not be enough to prevent the coils that are positioned over the holes from being pushed downward, particularly with the amount of weight that will be on the mattress. If this were to happen, this this could definitely damage the mattress in various ways and I would not expect that kind of damage to be covered under a warranty.

Net, I would definitely recommend getting the foundation in your case in order to safeguard yourself against this concern. The combination of this base with the foundation seems like it should work well.

I hope that's helpful.