Size reference
MS pipe sizes
Structural pipe charts use outside diameter and wall thickness. Many project drawings instead specify nominal bore, schedule or class; enter the exact notation shown on the drawing.
How to specify it
Use the dimensions on your drawing
Outside diameter × wall thickness, or nominal bore × schedule/class.
Published reference
Size and thickness suggestions
105 listed combinations
Type to filter the list, or browse all published combinations below.
- 21.3 × 2 mm OD × wall
- 21.3 × 2.2 mm OD × wall
- 21.3 × 2.5 mm OD × wall
- 21.3 × 2.8 mm OD × wall
- 26.4 × 2 mm OD × wall
- 26.4 × 2.2 mm OD × wall
- 26.4 × 2.5 mm OD × wall
- 26.4 × 2.8 mm OD × wall
- 33.7 × 2 mm OD × wall
- 33.7 × 2.2 mm OD × wall
- 33.7 × 2.5 mm OD × wall
- 33.7 × 2.8 mm OD × wall
- 33.7 × 3.2 mm OD × wall
- 33.7 × 3.6 mm OD × wall
- 38.1 × 3.2 mm OD × wall
- 38.1 × 3.6 mm OD × wall
- 38.1 × 4 mm OD × wall
- 38.1 × 4.5 mm OD × wall
- 38.1 × 5 mm OD × wall
- 38.1 × 6 mm OD × wall
- 38.1 × 8 mm OD × wall
- 42.4 × 2 mm OD × wall
- 42.4 × 2.3 mm OD × wall
- 42.4 × 2.6 mm OD × wall
- 42.4 × 2.9 mm OD × wall
- 42.4 × 3.2 mm OD × wall
- 42.4 × 3.6 mm OD × wall
- 48.3 × 2 mm OD × wall
- 48.3 × 2.3 mm OD × wall
- 48.3 × 2.6 mm OD × wall
- 48.3 × 2.9 mm OD × wall
- 48.3 × 3.2 mm OD × wall
- 48.3 × 3.6 mm OD × wall
- 48.3 × 4 mm OD × wall
- 48.3 × 4.5 mm OD × wall
- 48.3 × 5 mm OD × wall
- 48.3 × 6 mm OD × wall
- 48.3 × 8 mm OD × wall
- 60.3 × 2 mm OD × wall
- 60.3 × 2.3 mm OD × wall
- 60.3 × 2.6 mm OD × wall
- 60.3 × 2.9 mm OD × wall
- 60.3 × 3.2 mm OD × wall
- 60.3 × 3.6 mm OD × wall
- 60.3 × 4 mm OD × wall
- 60.3 × 4.5 mm OD × wall
- 60.3 × 5 mm OD × wall
- 60.3 × 6 mm OD × wall
- 60.3 × 8 mm OD × wall
- 71.5 × 3.2 mm OD × wall
- 71.5 × 3.6 mm OD × wall
- 71.5 × 4 mm OD × wall
- 71.5 × 5 mm OD × wall
- 71.5 × 6 mm OD × wall
- 71.5 × 8 mm OD × wall
- 76.2 × 2 mm OD × wall
- 76.2 × 2.3 mm OD × wall
- 76.2 × 2.6 mm OD × wall
- 76.2 × 2.9 mm OD × wall
- 76.2 × 3.2 mm OD × wall
- 76.2 × 3.6 mm OD × wall
- 76.2 × 4 mm OD × wall
- 76.2 × 4.5 mm OD × wall
- 76.2 × 5 mm OD × wall
- 76.2 × 6 mm OD × wall
- 76.2 × 8 mm OD × wall
- 88.9 × 2 mm OD × wall
- 88.9 × 2.3 mm OD × wall
- 88.9 × 2.6 mm OD × wall
- 88.9 × 2.9 mm OD × wall
- 88.9 × 3.2 mm OD × wall
- 88.9 × 3.6 mm OD × wall
- 88.9 × 4 mm OD × wall
- 88.9 × 4.5 mm OD × wall
- 88.9 × 5 mm OD × wall
- 88.9 × 6 mm OD × wall
- 88.9 × 8 mm OD × wall
- 88.9 × 10 mm OD × wall
- 101.6 × 2 mm OD × wall
- 101.6 × 2.3 mm OD × wall
- 101.6 × 2.6 mm OD × wall
- 101.6 × 2.9 mm OD × wall
- 101.6 × 3.2 mm OD × wall
- 101.6 × 3.6 mm OD × wall
- 101.6 × 4 mm OD × wall
- 101.6 × 4.5 mm OD × wall
- 101.6 × 5 mm OD × wall
- 114.3 × 2.6 mm OD × wall
- 114.3 × 2.9 mm OD × wall
- 114.3 × 3.2 mm OD × wall
- 114.3 × 3.6 mm OD × wall
- 114.3 × 4 mm OD × wall
- 114.3 × 4.5 mm OD × wall
- 323.9 × 6 mm OD × wall
- 323.9 × 8 mm OD × wall
- 323.9 × 10 mm OD × wall
- 323.9 × 12 mm OD × wall
- 355.6 × 6 mm OD × wall
- 355.6 × 8 mm OD × wall
- 355.6 × 10 mm OD × wall
- 355.6 × 12 mm OD × wall
- 406.4 × 6 mm OD × wall
- 406.4 × 8 mm OD × wall
- 406.4 × 10 mm OD × wall
- 406.4 × 12 mm OD × wall
Source references: APL Apollo 2026 structural tube catalogue. These dimensions are for enquiry reference; final make, standard, grade and availability are confirmed with the quotation.