+/- 2 mm
+/- 4 mm
+/- 6 mm
+/- 8 mm
Linen tape
Steel tape
Invar tape
Metallic tape
Natural error
Personal error
Instrumental error
Artificial error
15 feet and 30 feet
30 feet and 45 feet
45 feet and 60 feet
50 feet and 100 feet
Off set
Long off set
Short off set
Oblique off set