These sets give you trapdoors for both OpenForge 2 and OpenLOCK.
The OpenForge set gives you trapdoor floors for dungeon stone in floors, as well as wall, corner, curve, and diagonal tiles, all offered in 2x2, 3x3 & 4x4.
The OpenLOCK set gives you trapdoor floors for E (2x2 square), F (2x2 curved), U (4x4 square) and V (4x4 curved).
Grab the files on Thingiverse and let us know what you think in the comments.
We're still letting the poll from earlier this week run for a day or two more. The responses we have gotten so far have been great, and has given us a lot to work with!