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“Which MS rectangular pipe should I choose for my project?”
This is one of the most common questions asked by contractors, fabricators, site engineers, and even first-time home builders in India.
MS rectangular pipes are widely used—but choosing the wrong size, thickness, or grade can lead to over-spending, structural weakness, or future repair issues.
This complete buyer guide explains everything you need to know about MS (Mild Steel) rectangular pipes in simple, practical language, so you can confidently select the right pipe for your construction or fabrication needs.
An MS rectangular pipe is a hollow steel section with a rectangular shape, made from mild steel, which has low carbon content.
In simple terms:
MS rectangular pipes are also known as Rectangular Hollow Sections (RHS).
Mild steel is preferred because it:
The manufacturing process is straightforward and ensures uniform quality.
This process ensures consistent dimensions, smooth finish, and reliable strength.
Choosing the right shape is just as important as choosing the size.
| Feature | MS Rectangular Pipe | MS Square Pipe | MS Round Pipe |
|---|---|---|---|
| Shape | Rectangle | Square | Circular |
| Load Handling | Best for directional loads | Uniform load | Even stress |
| Material Efficiency | High | Medium | Low |
| Fabrication | Very easy | Easy | Moderate |
| Appearance | Modern & industrial | Symmetrical | Traditional |
| Best Uses | Frames, sheds, beams | Columns, furniture | Scaffolding, plumbing |
Quick Tip:
MS rectangular pipes are available in many sizes to suit different applications.
| Size (mm) | Common Applications |
|---|---|
| 40 × 20 | Furniture, light frames |
| 50 × 25 | Gates, railings |
| 75 × 40 | Roofing sheds |
| 100 × 50 | Structural frames |
| 150 × 75 | Heavy fabrication |
| 200 × 100 | Industrial structures |
| Thickness (mm) | Suitable For |
|---|---|
| 1.2 – 1.6 | Furniture, light use |
| 2.0 – 2.5 | Gates, sheds |
| 3.0 – 4.0 | Structural frames |
| 5.0 – 6.0 | Heavy-duty projects |
✔ Always confirm length tolerance before ordering.
Knowing weight helps calculate cost, load, and transport.
Simple Weight Formula:
Weight (kg/m) ≈ 0.00785 × Thickness × (Width + Height – Thickness)
Example:
Pipe size: 100 × 50 × 3 mm
Weight ≈ 6.9 kg per meter
6-meter length ≈ 41–42 kg per piece
Always check IS marking and manufacturer details on the pipe.
| Project Type | Recommended Thickness |
|---|---|
| Furniture | 1.2–1.6 mm |
| Gates | 2.0–2.5 mm |
| Roofing sheds | 2.5–3.0 mm |
| Structural frames | 3.0–4.0 mm |
| Heavy industry | 5.0 mm+ |
1. What is an MS rectangular pipe used for?
Construction, sheds, gates, furniture, and fabrication.
2. What is the standard length of MS rectangular pipes?
Mostly 6 meters in India.
3. How is MS rectangular pipe price calculated?
Based on weight per kg and steel market rates.
4. Is MS rectangular pipe stronger than square pipe?
Yes, for directional loads.
5. Can MS rectangular pipes be welded easily?
Yes, they are easy to cut and weld.
6. Are MS rectangular pipes suitable for outdoor use?
Yes, with proper painting or galvanizing.
7. Which thickness is best for roofing?
Usually 2.5–3 mm, depending on span and wind load.
MS rectangular pipes are a reliable, versatile, and cost-effective solution for most construction and fabrication needs. The key is selecting the right size, thickness, and grade—not just the cheapest option.
A well-chosen pipe ensures:
👉 Need help selecting the right MS rectangular pipe size or quantity?
Contact a trusted steel supplier or consult an expert before purchasing—it saves time, money, and future headaches.