| 52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
| 272 | DF | INTERSECTION OF WALL TO FLOOR, CEILING, ROOF, OR ANOTHER WALL (I.E., TWO-WAY CORNER CONSTRUCTION) {8} |
| 275 | DF | .~ Laterally related modules; e.g., spaced surfacing forms corner {2} |
| 276 | DF | .~.~ Multiplane overlapping angle and barrier sections {2} |
| 277 | ![]() | .~.~.~ Arcuate angle section |