52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
344 | DF | SETTABLE MATERIAL RECEIVING BACKER FIXED TO FURRING, JOIST, OR STUD {11} |
354 | .~ Integral part of support between edges of coplanar backers {1} | |
355 | DF | .~.~> With discrete separable fastener for backer |