📐 Steel angle 20×20×3 mm - a compact, practical section
Equal-leg steel angle 20×20×3 mm is the smallest commonly used angle size. It suits household structures, frame assembly, decorative edging and other small metalworking jobs. Its compact cross-section is useful where low weight is preferred and high load-bearing capacity is not required. The hot-rolled surface is suitable for welding and painting.
The section is manufactured to the current DSTU 2251:2018 standard, which replaced GOST 8509-93 for equal-leg angles in 2019. It has consistent leg geometry and a predictable weight of 0.89 kg per linear metre. See the Steel angle reference guide for weight tables covering all sizes and explanations of the applicable standards.
🔎 How to read the angle designation
The designation 20×20×3 is straightforward:
- First number (20 mm) - width of the first leg.
- Second number (20 mm) - width of the second leg.
- Third number (3 mm) - leg thickness.
Because both legs are equal (20 = 20), this is an equal-leg section. It is symmetrical and performs uniformly in both planes. If the legs differ, for example 40×25, the angle is unequal-leg and can be used where the load is asymmetrical.
🏗️ Main applications
- Light frames: stiffeners, opening surrounds and auxiliary frames.
- Furniture and shelving: metal shelves, tables, stands and cabinet frames.
- Decorative elements: edging, mounting strips and small interior details.
- Household structures: greenhouse and box frames, gates, wicket gates and lightweight canopies.
- Repairs: corner reinforcement, joints, plates and temporary structures.
📏 Choosing the angle thickness
For a 20×20 angle, 3 mm is the standard thickness and offers a practical balance of stiffness and weight for small jobs. If your structure needs greater strength, consider the next sizes in the range: 25×25×3 angle or 25×25×4 angle with a thicker leg. The Steel angle reference guide makes it easy to compare cross-sections and choose a suitable option.
💡 Tip from our metal depot specialist: When buying angle in bulk by the tonne, check the actual weight per metre. Some suppliers sell “lightweight” rolled steel with undersized leg thickness, so you receive fewer metres for the same amount. We guarantee the weight specified in the DSTU table: 0.89 kg/m for 20×20×3, with no underweight material.
⚠️ The stated weight is intended only to estimate the order cost, not to select a cross-section for a load. A design engineer must select sections for load-bearing structures in accordance with DBN or the Eurocodes.
✅ Advantages of SteelStream rolled steel
- Accurate weight: one linear metre weighs 0.89 kg according to the DSTU table, with no “lightweight” batches.
- Convenient length: standard 6 m bars are practical to transport in a small vehicle.
- Small minimum order: available from one bar, with the option to add other items to the order.
- Dispatch without prepayment and guaranteed compliance with DSTU 2251:2018.
🚚 How to order 20×20×3 steel angle with delivery
You can order steel at retail, from one bar, or wholesale at a reduced price per tonne.
- ✂️ Precision cutting: We can cut 6 m bars to your drawing and required lengths at our metal depot.
- 🔧 Welding services: If required, we can weld a frame or other structure to suit your project.
- 🚛 Prompt delivery: We deliver using our own vehicles across Kyiv, Vyshneve and the Kyiv region.
- 💳 Convenient payment: cash on delivery, card transfer or bank transfer with VAT for businesses.
🔗 Related products
- 25×25×3 steel angle - the next size for somewhat higher loads.
- 25×25×4 steel angle - a thicker leg for reinforced light frames.
- 6 mm rebar - for reinforcement and tying related components.
👉 Browse the steel angle catalogue to choose other sizes and thicknesses.