SOP: Quality Check
1. Purpose
To make sure every work item is completed correctly, safely, and according to the drawing, specification, and client requirements before moving to the next step.
2. Main Principle
Check before, during, and after work.
Quality is not repaired at the end; quality is controlled every day.
3. Quality Check Steps
Step 1: Check Drawing and Specification
Before starting work, confirm:
Latest drawing version
Correct dimensions
Correct material
Correct method
Required standard or code
Step 2: Check Material
Before using material, check:
Quantity
Size
Brand or type
Damage
Delivery note
Storage condition
Step 3: Check Workmanship
During work, check:
Alignment
Level
Plumb
Spacing
Connection
Finishing quality
Safety condition
Step 4: Check Measurement
Use proper tools:
Tape measure
Level tool
Laser level
Plumb bob
Checklist
Photo record
Step 5: Record Problems
If there is a defect:
Take photo
Mark location
Write problem clearly
Assign responsible person
Set deadline to fix
Step 6: Recheck After Correction
After fixing:
Inspect again
Compare with standard
Take final photo
Approve only when correct
4. Quality Check Rule
No approval = No next step.
Do not cover, close, pour concrete, paint, or continue the next work until the current work is checked and approved.
5. Daily Quality Checklist
Drawing checked
Material checked
Work area checked
Worker understands task
Work quality inspected
Defects recorded
Defects corrected
Final photo saved
Supervisor approved
6. Responsibility
Site Engineer / Supervisor
Controls daily quality and reports issues.
Foreman
Makes sure workers follow the correct method.
Workers
Do the work properly and fix defects.
Project Manager
Reviews major quality issues and approves important work.
7. Final Goal
The goal of quality check is to reduce:
Rework
Material waste
Time delay
Client complaints
Cost loss
And increase:
Trust
Professional image
Strong team discipline
Better project profit