Creating a Layout, Section and Elevation with dimensions using AutoCad
1)

Tools used:
- Line-L
- Rectangle-REC
- Offset-OFF
- Trim-TR
- Extend-EXTEND
- Multiline Text-MTEXT
2)

Tools used:
- Line-L
- Rectangle-REC
- Offset-OFF
- Trim-TR
- Extend-EXTEND
- Multiline Text-MTEXT
3)

Tools used:
- Line-L
- Rectangle-REC
- Offset-OFF
- Trim-TR
- Extend-EXTEND
- Multiline Text-MTEXT