Suspended Ceiling T Grid System with Gypsum Board:
1) Main tee: 24 x 38 x 3, 600mm, 24 x 32 x 3, 600mm 
2) Cross tee: 24 x 27 x 1, 200mm 24 x 27 x 600mm 
3) Wall angle: 24 x 24 x 3, 000mm 22 x 22 x 3, 000mm 4) Thickness: 0.4mm, 0.35mm, 0.3mm, 0.26mm 
5) Color: Silver, golden, metallic (optional) 
6) The length, width, thickness and color can be provided in accordance with customers' Requirements: 
7) Material: High-quality hot-dipped galvanized steel coil, zinc volume: Above 120g 
8) Butt end/interlocking tongue: Galvanized steel or alloy end Packing: Paper box.

Normal we got thickness of Main tee, long cross tee and short cross tee is 0.30mm, 0.27mm, 0.25mm, 0.23mm.

For wall angle thickness we got 0.27mm, 0.30mm, 0.33mm, 0.35mm and 0.40mm

The thickness can make as the client's need, the thickness less, the price cheaper!