Base Plate Reference Data

Base plates provide the bearing surface between steel columns and concrete foundations. The configurations below are standard arrangements per BS EN 1993-1-8 and typical UK practice. Actual base plate sizing, thickness, and bolt layout must be confirmed by a structural engineer based on the specific loading and foundation design.

Standard Configurations (BS EN 1993-1-8)

Column Serial SizeTypical Plate Size (mm)Common Thicknesses (mm)HD Bolt PatternHD Bolts

Base Plate Weight Calculator

Enter plate dimensions to calculate weight based on steel density (7850 kg/m³).

Grout Thickness Guidance

Grout provides a level bearing surface and accommodates minor foundation irregularities.

Standard Grout Thickness50–75 mm
Maximum Thickness100 mm (requires structural design)
Grout SpecificationNon-shrink cement-based grout, min. 40 MPa strength
Surface PreparationFoundation must be level; base plate levelled with shims before grouting
Curing TimeMin. 7 days before applying load (check grout datasheet)
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