DECIMAL CLASSIFICATION 
721.7 
JT 
72 
73 
74 
75 
76 
7 
78 
79 
8 
81 
82 
83 
84 
83 
86 
87 
88 
29 
0 
QI 
92 
93 
94 
95 
06 
97 
98 
09 
722 
& 
3 
0 
Ceilings 
For vaulted ceilings, see 721.4 and 739. 3+ 
Wood 
Stone 
Brick or tiles with iron 
Metallic 
Concrete Plaster 
Doors Gates Grilles Windows 
Doors, wooden 
Doors, metallic 
Doors, sash, lattis, screen, etc. 
Windows, external 
Windows, internal 
Inclosures of doors and windows 
Architraves Pilasters Jams Pediments Lintels, etc. 
Shutters Blinds Screens Grilles 
Fastenings Locks 
Other details 
[ron and composit structures 
For strength of materials, see Engineering, 620.11 
Cast iron 
Wrought iron 
Steel 
Composit 
Iron and wood 
Iron and stone 
Iron and brick, tile, terra cotta Reinforced concrete 
Iron and glas 
Wood and glas 
Ancient and Oriental architecture (Pagan) 
See also 571.8 Prehistoric dwellings 
Chinese Japanese 
Egyptian 
Phenician Tyrian Jewish. Carthaginian  Cypriote 
Indian (Asiatic) 
Hindu, Buddhist, Jaina, Himalayan, Dravidian, Chalukyan. Indo-Aryan, Burmese 
Siamese, Cambodian 
Chaldean Assyrian Babylonian Ancient Persian 
Sassanian 
Pelasgian Etruscan 
Roman See 720.32 for Roman orders : 
Grecian See 729.32 for Greek orders 
Other: Aztec, Peruvian, Mava, Yucatan. etc.