Sinosteel stock the most common types of standard grating mats: 1. L5800*W1000mm 2. L6000* ... W1000mm 3. 20'*3' 4. 24'*3' Standard Steel Grating Panels Sizes in inch: 3x12, 3x20, 3x24 ... Standard Steel Grating Panels Sizes in mm: 1000x5800mm, 1000x6000mm, ... 1mm, 50mm, 75mm, and 100mm,101.6mm(4").5.Standard Grating Panels Sizes: 3'x12', 3'x20', 3'x24 ...