3" x 3" Heavy Duty Square Flat Steel Metal Base Plate With Holes
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3" x 3" Heavy Duty Square Flat Steel Metal Base Plate With Holes
Provide a stable and secure foundation for posts, columns, and equipment with our 3" x 3" Heavy Duty Square Steel Base Plate. Featuring pre-drilled holes for efficient installation, this flat plate is engineered from durable steel to ensure reliable structural support in commercial and industrial applications.
- Structural Grade Steel
- Pre-Drilled Mounting Holes
- Weldable & Paintable Surface
- Application: Posts, Fencing, Machinery
This heavy-duty base plate is manufactured from high-quality, low-carbon structural steel, often conforming to standards like ASTM A36. This material provides an excellent combination of strength, formability, and weldability, making it a versatile choice for fabrication projects. The plate's flat, square profile ensures even load distribution, while its robust construction resists deformation under significant weight. The raw steel finish is ready for welding, drilling, or finishing with industrial-grade primers and paints for enhanced corrosion resistance.
Designed for versatility, the 3" x 3" steel base plate is an essential component in construction, fencing, and MRO projects. It serves as a reliable anchor point for square tubing, posts, and railings, securing them to concrete or other structural surfaces. Fabricators use these plates for building machine bases, support brackets, and custom structural supports. Its pre-drilled holes simplify the anchoring process, saving time and labor on-site for both new installations and repair work in the Los Angeles area.
Specifications
- Material: Low-Carbon Structural Steel (e.g., ASTM A36 or similar)
- Standards: Meets or exceeds general structural steel standards (e.g., ASTM A36)
- Strength/Tensile: Min. Yield Strength: 36,000 psi (Typical for A36)
- Dimensions: 3" Length x 3" Width
- Finish: Raw Steel / Mill Finish (paintable)
- Certifications: Mill Test Reports (MTR) available upon request.
Applications
- Fencing & Railing: Creating a secure base for fence posts, handrail posts, and gate supports on concrete pads or decks.
- Structural Support: Anchoring light-duty columns, support posts for mezzanines, and structural framework.
- Machinery & Equipment: Fabricating mounting pads, feet, and bases for industrial equipment and machinery.
- MRO & Fabrication: General repair work, creating custom brackets, and as a gusset or connection plate in steel assemblies.
Target Users
This product is ideal for metal fabricators, construction contractors, fence installers, and MRO technicians who require a reliable, ready-to-use mounting solution for structural and ornamental projects.
Finish Options
This steel base plate is supplied with a raw, un-coated mill finish. This makes it ideal for welding directly to other steel components. For corrosion protection, the surface can be prepared and finished with a variety of industrial coatings, including primers, DTM (Direct-to-Metal) paints, or powder coating.
How to Measure
To specify this base plate, confirm the Length and Width (e.g., 3" x 3"). Additionally, note the required material thickness and the diameter and pattern of the pre-drilled holes if your project requires specific dimensions.
Example: '3x3 Square Steel Base Plate, 1/4" thick, with four 1/2" diameter holes.'
Order Checklist
- Product name and required dimensions
- Grade/material specification and quantity
- Cutting instructions (if applicable)
- Surface finish requirements
- Certifications required (Mill Test Report - MTR)
- Special handling or delivery requirements
Quick Facts
- Product
- 3" x 3" Heavy Duty Square Flat Steel Metal Base Plate With Holes
- Material
- Low-Carbon Structural Steel
- Standards
- ASTM A36 (or equivalent)
- Key Properties
- Weldable, pre-drilled, provides structural support and even load distribution.
- Primary Applications
- Fencing, Post Anchoring, Machinery Bases
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock a range of square and rectangular steel base plates, including common sizes like 4"x4", 6"x6", and various thicknesses. Plates can be provided with or without holes.
Custom sizes and cutting services are available.
Contact for Sizing