Product and application
Round tube is described by outside diameter and wall thickness. Square and rectangular tube need outside width, height and wall thickness. Confirm which members use which size; a frame, rail and brace may all differ on the same panel.
Product options
A shape name does not establish material grade, weld quality, weight or strength. Ask for the specific product documentation and the manufacturer’s intended use. Comparing one dimension while ignoring thickness and geometry gives an incomplete picture.
Order details
At connections, shape also affects sleeves, clamps and fit. Use hardware approved for the actual member profile and finish, and ask how field alterations affect the manufacturer’s instructions.
Hypothetical member schedule
This invented example shows how to write dimensions separately. It is not an available product, a required specification or a capacity comparison.
Three members, three descriptions
| Member | Illustrative outside dimensions | Still required |
|---|---|---|
| Perimeter frame | Square tube: 2 × 2 inches | Numeric wall thickness, grade and tolerance |
| Horizontal rails | Round tube: 1.5-inch outside diameter | Numeric wall thickness and grade |
| Vertical stay | Flat section: 1.5-inch width | Thickness, material and attachment details |
| Connection pieces | Not yet identified | Manufacturer-approved interfaces for the actual model |
We can supply many other sizes. If you don’t see what you need, ask our team.