Fixed dimension tables
So you have just found a photograph of an asset that is a must have for your route. But the problem is, that there are no dimensions to start with. However, as it happens, at least in some times, places, and applications, that certain dimensions are common enough that they are almost standard. These dimensions can be used as a starting point to at least make reasonable estimates of other dimensions.
Rail and Trackside Assets
| Category |
Locale |
Era |
Description of dimension |
value and units of dimension |
comment
|
| Railroad |
North America |
1886 to Present |
Standard gauge railroad track |
4' 8.5" / 1435 mm |
|
| Railroad |
UK |
1846 to Present |
Standard gauge railroad track |
4' 8.5" / 1435 |
|
| Railroad |
North America |
|
Coupler horizontal center line - loaded car |
33 to 34 inches / 838 to 864 mm |
|
| Railroad |
North America |
|
Coupler horizontal center line - empty car |
34 to 35 inches / 864 to 889 mm |
|
| Railroad |
North America |
|
Wheel diameter - up to 70 ton car |
33 inches / 838 mm |
|
| Railroad |
North America |
|
Wheel diameter - 70 to 119 ton car |
36 inches / 908 mm |
|
| Railroad |
North America |
|
Wheel diameter - auto rack and intermodal cars |
28 inches / 711 mm |
|
| Railroad |
North America |
|
Floor & deck height from top of rail |
40 inches / 1016 mm |
|
| Railroad |
Australia |
|
Floor & deck height from top of rail |
48 inches / 1219 mm |
|
| Railroad |
Australia |
to 1880 |
Rail wheel thickness |
5 inches / 127 mm |
|
| Railroad |
Australia |
1880 to date |
Rail wheel thickness |
5-1/2 inches / 139.7 mm |
|
Architectural elements
| Category |
Locale |
Era |
Description of dimension |
value and units of dimension |
comment
|
| Residence |
North America |
|
Door height |
6 feet 8 inches / 2032 mm |
|
| Residence |
North America |
|
Doorknob height |
36 inches / 934.4 mm |
|
| Industrial |
North America |
|
Rail loading dock height (from top of rail) |
40 inches / 1016 mm |
|
| Industiral |
Australia |
|
Rail loading dock height (from top of rail) |
48 inches / 1219 mm |
|
| Residence and commercial |
United States |
|
Stairway riser (from top of one tread to top of next) |
7 inches / 177.8 mm |
|
Vehicles
| Category |
Locale |
Era |
Description of dimension |
value and units of dimension |
comment
|
| International intermodal container |
World wide |
|
container height |
8 feet / 235.0 cm |
|
| International intermodal container |
World wide |
|
short container length |
20 feet / 590.6 cm |
|
| International intermodal container |
World wide |
|
long container length |
40 feet / 1181.2 cm |
|
| Semi trailer |
North America |
|
trailer length |
40 feet / 1181.2 cm |
|
| Semi trailer |
North America |
|
trailer length |
48 feet / 1463 cm |
|
| Semi trailer |
North America |
|
trailer length |
53 feet / 1615.44 cm |
|
| Intermodal container |
North America |
|
trailer length |
40 feet / 1181.2 cm |
|
| Intermodal container |
North America |
|
trailer length |
48 feet / 1463 cm |
|
| Intermodal container |
North America |
|
trailer length |
53 feet / 1615.44 cm |
|
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