Send us a message. Mild Steel Base Plates / Floor Plate. 8mm, 10mm, 12mm Steel Base Plates. Steel base plates are flat, rectangular plates made of steel that are typically used as a foundation or support for columns, poles, or other structures. They are designed to evenly distribute the weight and load of the supported structure over a larger area, helping to prevent sinking or shifting of the foundation over time. They are often bolted or welded into place and can be customized to fit specific project requirements. +/-2mm Cutting Tolerance with Free Cutting Service. · Reputable UK based company in the heart of the West Midlands. · All prices inclusive of VAT and invoices supplied within 7 days. Are you looking for something similar? See our other items!