Collection: Flat Bar
Steel Flat Bar – A36 Hot Rolled | Cut to Size
Our A36 hot-rolled steel flat bar is made from ASTM A36 structural steel, known for strength, durability, and weldability. It’s a versatile choice for construction, fabrication, and DIY projects.
Flat bar is a rectangular steel shape with a smooth finish and dimensional accuracy, ideal for bracing, supports, base plates, brackets, frames, rails, repairs, and home projects.
We stock thicknesses from 1/8" to 1/2", widths from 1" to 6", and lengths up to 20 feet. Cut-to-size service ensures you get the exact dimensions you need.
Warrenton Steel offers premium A36 steel, fast custom cuts, competitive pricing, nationwide shipping, and reliable service. Order online or contact us at 636-456-8400 or Sales@WarrentonSteel.com
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12” x 12” x 1/4” Steel Plate - A36 Hot Rolled Carbon Steel Metal Post Base Plates - 1’ x 1’ x 0.25” Steel Sheets - Bulk Discount Value Packs
Vendor:Warrenton Steel ShopRegular price From $25.00 USDRegular price$50.00 USDSale price From $25.00 USDSale -
1/2" Solid Square Steel Bar - A36 Hot Rolled Carbon Steel Square Rod - 0.5” Metal Square Shaft Stake
Vendor:Warrenton Steel ShopRegular price From $1.99 USDRegular price$5.00 USDSale price From $1.99 USDSale -
12" x 12" x 1/8" Steel Plate - A36 Hot Rolled Carbon Steel - 11ga Metal Post Base Plates - Welding Practice - 0.125” Steel Sheets for Fabrication - Value Packs
Vendor:Warrenton Steel ShopRegular price From $20.00 USDRegular price$40.00 USDSale price From $20.00 USDSale -
1/4" x 1" Steel Flat Bar Metal Strip Plate -A36 Hot Rolled Carbon Steel - Welding Practice Coupons - 0.25” x 1” Steel Bar Stock
Vendor:Warrenton Steel ShopRegular price From $1.99 USDRegular price$1.30 USDSale price From $1.99 USD -
6 Weld Practice Plates - 11ga Welding Test Training - A36 Hot Rolled Carbon Steel Metal Coupons 4" x 4" x 1/8" Base Plate - welding Kit - 0.125” Steel Sheets for Fabrication
Vendor:Warrenton Steel ShopRegular price $7.89 USDRegular priceSale price $7.89 USD -
2 Carbon Steel Plates 6" x 6" x 1/4" Plate - Pack of 2 Metal Base plates - A36 Welding Test Practice Coupons - Hot Rolled 0.25” Steel Sheets
Vendor:Warrenton Steel ShopRegular price $8.99 USDRegular priceSale price $8.99 USD -
8" x 8" x 1/8" Steel Shim Plate - A36 Hot Rolled Carbon Steel - 11ga Metal Post Base Plate - Welding Test Practice Coupon - 0.125” Steel Sheet
Vendor:Warrenton Steel ShopRegular price From $8.00 USDRegular price$16.00 USDSale price From $8.00 USDSale -
6” x 6” x 3/8" Steel Shim - Post Base Plate - A36 Hot Rolled Carbon Steel - 0.375” Metal Welding Practice Coupon - Steel Sheet - Bulk Discounts
Vendor:Warrenton Steel ShopRegular price From $12.00 USDRegular price$60.00 USDSale price From $12.00 USDSale -
3” x 3” x 1/2" Steel Shim Plates A36 Hot Rolled - Metal Weld Test Practice Coupons - 0.5” Heavy Duty Steel for Fabrication - Quantity Discounts
Vendor:Warrenton Steel ShopRegular price From $4.00 USDRegular price$20.00 USDSale price From $4.00 USDSale -
3” x 3” x 3/16” Steel Shim Plate - 0.1875” Metal Welding Practice Coupons - A36 Hot Rolled Carbon Steel Base Plate - Steel for Fabrication - Bulk Pricing Value Packs
Vendor:Warrenton Steel ShopRegular price From $3.00 USDRegular price$6.00 USDSale price From $3.00 USDSale -
1 1/4” x 8” x 1/8” Flat Steel Shim Plate- Grade A36 Hot Rolled - 11ga Metal Plate Strip for Fabrication - 0.125” Welding Practice Coupon - Bulk Discount Value Packs
Vendor:Warrenton Steel ShopRegular price From $2.00 USDRegular price$0.00 USDSale price From $2.00 USD -
4" x 4" x 3/16" Steel Shim Plate – A36 Hot Rolled Carbon Steel Base Plate - Metal Welding Practice Coupon - 0.1875” Steel Sheet - Bulk Pricing Value Packs
Vendor:Warrenton Steel ShopRegular price From $4.00 USDRegular price$20.00 USDSale price From $4.00 USDSale -
7" x 7" x 1/4" Steel Shim Plates - Post Base Plate - A36 Hot Rolled Steel - 0.25” Metal Heavy Duty Steel Plate - Bulk Discounts
Vendor:Warrenton Steel ShopRegular price From $15.00 USDRegular price$30.00 USDSale price From $15.00 USDSale -
5” x 5” x 1/4" Steel Shim Plates - A36 Hot Rolled Metal Post Base Plate - 0.25” Heavy Duty Steel - Welding Practice - Quantity Discounts
Vendor:Warrenton Steel ShopRegular price From $5.00 USDRegular price$25.00 USDSale price From $5.00 USDSale -
2.5" x 8" x 1/4" Steel Welding Kit - Metal Shim Base Plate - A36 Hot Rolled Carbon Steel - Welding Test Practice Coupons - 0.25” Heavy Duty Plate Strip for Fabrication - Bulk Pricing Value Packs
Vendor:Warrenton Steel ShopRegular price From $5.00 USDRegular price$25.00 USDSale price From $5.00 USDSale -
Weld Training Coupons - 4" x 8" x 1/8" - A36 Hot Rolled Steel Welding Training Kit - 11ga Welding Practice - 0.125” Carbon Steel Metal Plate - Bulk Value Packs
Vendor:Warrenton Steel ShopRegular price From $5.00 USDRegular price$10.00 USDSale price From $5.00 USDSale