Figure 3
Results of Research on Maneuvering Clearances in inches (cm)

A. Latch Side Approach, Pull Side

Researchers/ Depth of Space, measured perpendicular to doorway (x)/ Clear Opening

• Walter, 49.1 (126), 31.2 (80)
• Brattgard 39.0 (100), 30.4 (78)
• Ownsworth (source Brattgard 1974), 39.0 (100), 30.2 (77.5)
• Nedrebo (source Brattgard 1974), 52.7 (135) - not reported as minimum, 29.7 (76.1)
• Steinfeld 47.6 (122), 29.6 (76)

B. Hinge Side Approach, Pull Side

Researchers/ Depth of Space, measured perpendicular to doorway (x)/ Distance from latch measured parallel to wall (y)/ Clear Opening

• Brattgard 46.8 (120), 42.9 (110), 30.4 (78)
• Steinfeld 59.7 (153), 41.7 (107), 29.6 (76)

C. Latch Side Approach, Push Side

Researchers/ Depth of Space, measured perpendicular to doorway (x)/ Clear Opening

• Walter 46.8 (120, 31.2 (80)
• Brattgard 39.0 (100), 30.4 (78)
• Ownsworth (source Brattgard 1974), 39.0 (100), 30.2 (77.5)
• Nedrebo (source Brattgard 1974), 47.6 (122) - not reported as minimum, 29.7 (76.1)
• Steinfeld 41.7 (107), 31.6 (81)

D. Hinge Side Approach, Push Side

Researchers/ Depth of Space, measured perpendicular to doorway (x)/ Clear Opening

• Walter 46.8 (120, 31.2 (80)
• Brattgard 39.0 (100), 30.4 (78)
• Ownsworth (source Brattgard 1974), 39.0 (100), 30.2 (77.5)
• Nedrebo (source Brattgard 1974), 48.8 (125) - not reported as minimum, 29.7 (76.1)
• Steinfeld 41.7 (107), 31.6 (81)

E. Forward Approach, Pull Side

Researchers/ Depth of Space, measured perpendicular to doorway (x)/ Clear Opening

• Walter 12.9 (33), 31.2 (80)
• Brattgard 11.7 (30), 30.4 (78)
• Nedrebo (source Brattgard 1974), 23.4 (60), 29.7 (76.1)
• Steinfeld 23.4 (61), 29.6 (76)

F. Forward Approach, Push Side

Researchers/ Depth of Space, measured perpendicular to doorway (x)/ Clear Opening

• Brattgard 7.8 (20), 30.4 (78)
• Nedrebo 11.7 (30), 29.7 (76.1)
• Steinfeld (source Brattgard 1974) not tested

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