The DF Series
Deep, square, built to hold.
Deeper and taller than the Sixth frame: room for the pose, not only the figure. Built for 1/4 statues, full Lego builds, and 1/6 collectors who display in motion. Panels seat inside the frame, held by the frame, not by glue.
Not sure how many you need?
Stack them in 3D and see the footprint before anything ships.