American standard
| Dimension | Standard | Steel |
| SMLS EQUAL TEES 1" SCH 40 - 14" SCH 40 | ASME B16.9 | A234WPB |
| SMLS REDUCED TEES 1" x 1/2" SCH 40 - 14" x 12" SCH 40 | ASME B16.9 | A234WPB |
Dimensions 1 "- 4” SCH 40 and SCH 80, other SCH 40.
European standard
| Dimension | Standard | Steel |
| SMLS EQUAL TEES 33,7 x 2,6 - 323,9 - 7,1 | EN10253-2 | P235TR1/P235GH |
| SMLS REDUCED TEES 33,7 x 2,6 / 26,9 x 2,3 - 323,9 x 7,1 / 273 x 6,3 | EN10253-2 | P235TR1/P235GH |
Standard wall thickness.