1. All Structure should in nut bolting 2. All Structure members pipes and folded sections to be used 3. Bottom of all platforms chequered plates to be used 4. Outside Diameter and Inside diameter of platforms with safety railings. 5. About 1 Ton load on each platform ( Tota B Ton Load on B plattorms 6. Person and machinery loading on platforms will be at well top after inserting plattorms. 7. Opening for entry of persons and machinery in platforms at 4 places @90 Deg. in each plattorm. 8. To avoid jerks jacking system to be used at well ID and plattorms OD. 9. All individual structure members should @2mtr x 2mtr for easy transportation to we top from bottom 101 Individual weight of structure members should not exceed above 30 kgs. Approx