BT 90 series

2 tees cut from universal beams sections of nominal size BT 90, from Australian-Sections.xlsx (Sheets 1-19).

BT 90 sections
Designation	Weight (kg/m)	Depth (mm)	Flange (mm)	tw (mm)	tf (mm)	Iₓ (mm⁴)	Zₓ (mm³)
90 BT 11	11	88.5	90	6	10	857,000	22,500
90 BT 9	9	86.5	90	5	8	684,000	18,000

BT 90 series — Tees cut from universal beams | Kannamwar Engineering