| 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} |
| 281 | DF | .~ Sustainer coextensive with junction of panels or modules {1} |
| 282.1 | DF | .~.~ Exposed sustainer {3} |
| 282.4 | ![]() | .~.~.~ With fastener {1} |
| 282.5 | DF | .~.~.~.~> Compressing a clamping means |