1'         =          12"

1"         =          8 lwr

1 Meter  =              100 Centimeter (cm)

1 Centimeter         =              10 Milli Meter (mm)

1 Inch    =              25.4 mm

1"            =              2.54 cm

1'             =              304.8 mm

1'             =              30.48 cm

1 Kilo Meter          =              1000 Meter

15'4" x 10'9" =

15.333 x 10.75 =164.79'

DPC = Damp Proof Course

Levels

1. Road Level (0 Level)

2. Porch Level (2'6")

3. Plinth Level (1'6")

4. Seal Level (2'9" / 3'6" (Kitchen)

5. Lentil Level (7' / 8'6")

6. Slab (5")

7. Roof Level (10'5" / 11'5")

8. Parapet Wall (3' / 3'6")

9. Head Room (7'6")

Mumty / Head Room (7'6)

Boundary Wall / Compound Wall (4'6")

Stair Turning (Landing)

Flight

 Thanks to Google

Thanks to ChatGPT