A dumb waiter is a small freight elevator or a lift intended to carry food. Dumb waiter, found within modern structure & civil structures, includes commercial, public, private building such as hotels, restaurant for shifting of ready to serve food, kitchen utensils and raw food. These are also used in private villas. Moreover these are used in offices for moving heavy records (files) and multistory libraries.
Specifications For Requirement of Dumb Waiter As Per IS 14665
| Load | Speed | Car Inside | Lift Shaft | Door | ||||
| Kg. | MPS | A | B | H | C | D | E | H |
| 100 | 0.50 | 700 | 700 | 800 | 800 | 900 | 700 | 800 |
| 150 | 0.50 | 800 | 800 | 900 | 900 | 1000 | 800 | 900 |
| 200 | 0.25 | 900 | 900 | 1000 | 1000 | 1100 | 900 | 1000 |
| 250 | 0.25 | 1000 | 1000 | 1200 | 1200 | 1200 | 1000 | 1200 |
