Square Steel Plates – Precision Cut A36 Carbon Steel

JWM Metal Supply offers premium A36 square steel plates precision CNC plasma cut and ready for your next fabrication project. Our square plates are available in multiple thicknesses and sizes ranging from 4" × 4" to 30" × 30", making them ideal for everything from small repair jobs to heavy-duty industrial applications.

Whether you're building trailer components, equipment brackets, machine bases, structural supports, or custom fabrication projects, our precision-cut steel plates provide the strength, durability, and versatility professionals demand.

Each plate is cut in our Kansas facility using CNC plasma equipment to ensure accurate dimensions and clean, weld-ready edges. All plates are shipped with a raw mill finish and are ready for welding, machining, drilling, painting, or powder coating.

---

Available Thicknesses

• 1/16" Steel Square Plates
• 1/8" Steel Square Plates
• 3/16" Steel Square Plates
• 1/4" Steel Square Plates

---

Available Sizes

Our square steel plates are available in sizes from:

• 4" × 4"
• 5" × 5"
• 6" × 6"
• Through
• 30" × 30"

Choose the size and thickness that best fits your application.

---

Features

• Premium ASTM A36 Low Carbon Steel
• Precision CNC Plasma Cut
• Square Sizes from 4" × 4" to 30" × 30"
• Multiple Thickness Options
• Clean, Weld-Ready Edges
• Raw Mill Finish
• Excellent Weldability
• Easy to Drill and Machine
• Made in the USA
• Always Fast & Free Shipping
• Ships in 1–5 Business Days

---

Common Applications

• Base Plates
• Mounting Plates
• Equipment Repair
• Trailer Fabrication
• Structural Reinforcement
• Welding Projects
• Agricultural Equipment
• Machine Components
• Industrial Fabrication
• DIY Metalworking

---

Why Choose JWM Metal Supply?

• Precision Cut in Kansas
• Premium American Steel
• No Minimum Order
• Fast Turnaround
• Always Fast & Free Shipping
• Ships in 1–5 Business Days
• Bulk Pricing Available
• Family-Owned Fabrication Shop

---

Frequently Asked Questions

What material are your square plates made from?

Our square plates are cut from premium ASTM A36 low carbon steel, offering excellent strength, weldability, and machinability.

Can I weld these plates?

Yes. A36 steel is ideal for MIG, TIG, and Stick welding.

Can I drill or machine these plates?

Absolutely. These plates can be drilled, machined, and fabricated using standard metalworking tools.

What finish do the plates have?

All plates are supplied with a raw mill finish and may contain light mill scale or surface discoloration typical of carbon steel.

Do you offer bulk pricing?

Yes. Contact us for volume pricing on larger orders.