T grid: 1. The standard sizes see the chart below . 2. We can produce tocustomers specificationsas below : - Raw materials : ZINC coating from 80 to 275 gram per square meter ,also can usethe stainless steel mirror oraluminum mirror. - Thickness : Form 0.25mm to 0.40mm . - Dimension : Length : Main Tee up to 3.75 meters ,Cross Tee up to 1.22 meters , Width : From 14mm to24mm and Hight from 24mm to 38mm . We can produce any size to meet and installyour ceiling . - Colour : The surface is white , butalso can be stainless steel mirror and aluminum mirror . STANDARD SIZE FOR FLAT SURFACE T GRID SYSTEM ItemDescriptionWidth (mm)Hight (mm)Thickness (mm)Length1T24 MAIN TEE24380.25 0.40mmup to 3.75 meters320.25 0.40mmup to 3.75 meters280.25 0.40mmup to 3.75 meters260.25 0.40mmup to 3.75 meters240.25 0.40mmup to 3.75 metersT24 CROSS TEE24380.25 0.40mmup to 1.22mmm320.25 0.40mmup to 1.22mmm280.25 0.40mmup to 1.22mmm260.25 0.40mmup to 1.22mmm240.25 0.40mmup to 1.22mmm2T15 MAIN TEE15380.25 0.40mmup to 3.75 meters320.25 0.40mmup to 3.75 meters280.25 0.40mmup to 3.75 meters260.25 0.40mmup to 3.75 metersT15 CROSS TEE15380.25 0.40mmup to 1.22mmm320.25 0.40mmup to 1.22mmm280.25 0.40mmup to 1.22mmm260.25 0.40mmup to 1.22mmm3T14 MAIN TEE14320.25 0.40mmup to 3.75 meters280.25 0.40mmup to 3.75 meters240.25 0.40mmup to 3.75 metersT14 CROSS TEE14320.25 0.40mmup to 1.22mmm280.25 0.40mmup to 1.22mmm240.25 0.40mmup to 1.22mmm