Will a standard bookshelf (36"×12"×72") (91x30x183 cm) fit through a 185 cm door?
Expert analysis
A standard bookshelf (36"×12"×72") measuring 36 in × 12 in × 72 in fits through a door, with about 4 ft 11.5 in to spare at the tightest point. The binding dimension is width: in its best-fitting orientation, the width is what comes closest to the limit, and it still clears. We checked every orientation and confirmed at least one places the standard bookshelf (36"×12"×72") fully inside without compression or disassembly. That margin already subtracts a 1.5 in handling allowance, so it reflects a realistic load rather than a paper-thin theoretical fit. One caveat: applied practical clearance for handling (see tolerance buffer above).