Herewith we have shared the List of various item of works and its life span.
| Details of Items of works | Life of the works |
| Brickwork in lime of Cement, Boulder Masonry in Lime or Cement, Cut stone work in Lime or Cement, |
100 Years and Above |
| Brickwork in Clay, Coursed in Mud, |
100 Years |
| Brickwork in Arches in Lime or Cement, Rubble stone in arches in Lime or Cement, |
100 Years |
| Sundried brickwork in clay | 75 Years |
| Brick on edge or flat flooring over 7.5cm L.C | 40 Years |
| Cement concrete floor, Granolithic flooring, Stone flooring | 50 Years |
| Terraced floor or Lime concrete | 20 Years |
| RCC or RB terraced roofing over stone flags, Jack arck roofing with LC terracing | 75 Years |
| Iron work in roofing | 80 Years |
| Sal wood work in roof | 60 Years |
| Country wood in work | 15 Years |
| GI roofing of 22 BWG sheet | 50 Years |
| Pine wood Ceiling | 30 Years |
| Teak wood doors and windows, Sal wood doors and windows | 40 Years |
| Country wood doors and windows | 30 Years |
| Rolled steel joist | 75 Years |
| Wrought iron work | 80 Years |