1 Inch MS Square Pipe Weight Chart Every Buyer Needs in 2026

Ever faced a delay because a minor weight mismatch disrupted your schedule? A single wrong number in the MS square pipe weight can affect costing, slow transport planning, and disrupt fabrication timelines. For contractors and fabricators under pressure, this can cause real headaches.

You deal with concerns like pipes arriving with unexpected weight, billing discrepancies, or trucks carrying more than planned. When weight data is uncertain, each stage feels risky. When numbers are correct, work moves smoothly.

In this blog, we’ll explain the 1-inch MS square pipe weight, provide a clean weight chart in KG, and explore why the weight can vary. We’ll also offer practical guidance for costing, transport, fabrication flow, and delivery checks to help you plan your next order with confidence.

Key Takeaways:

• Clear weight data supports better planning for costing, transport, fabrication work, and delivery checks.

• “1 inch” refers to a nominal 25 mm size, with thickness deciding the final weight.

• A detailed weight chart helps buyers plan orders and compare vendor quotes with confidence.

• Weight variation can occur due to mill tolerance, weld seams, storage conditions, and handling.

• Contractors can use weight data to plan budgets, loading limits, cutting schedules, and site readiness.

How to Calculate MS Square Pipe Weight Correctly

Contractors and fabricators rely on clear weight data to plan material costs, transport loads, and fabrication flow. When the calculation is simple and consistent, site teams avoid confusion during ordering or delivery checks.

MS square pipe weight depends on:

• Outer size

• Wall thickness

• Density of steel

These factors decide how much the pipe weighs per metre.

The practical formula

Weight per metre = Cross-sectional area × Density of steel

Suppliers follow this formula across India. This keeps weight charts aligned with what you receive on site.

Buyers often ask for “1 inch,” but mills use metric units.

1 inch = 25.4 mm, commonly rounded to 25 mm (DN 25) for charts and billing.

Sample calculation for a 1-inch MS square pipe

Let’s use a 25 mm × 25 mm pipe with 2.0 mm wall thickness.

Step 1: Outer area

25 mm × 25 mm

Step 2: Inner area

(25 mm – 2×2 mm) = 21 mm

Inner area = 21 mm × 21 mm

Step 3: Cross-sectional area

Outer area – Inner area

(25×25) – (21×21) = 184 mm²

Step 4: Multiply by standard density

Typical weight for this size lands around 1.45–1.60 KG per metre, depending on mill tolerance.

Once you understand the method, you can move to the chart that gives you quick reference values used during daily planning.

Also Read: How to Calculate TMT Bar Weight: A Simple Guide

Detailed 1 Inch MS Square Pipe Weight Chart in KG

Many teams ask for “1 inch” pipes, but mills follow metric sizes, so 1 inch equals 25.4 mm and is rounded to 25 mm (DN 25) in charts, billing, and supplier sheets.  With that in mind, the table below gives a clear view of how wall thickness affects weight per metre for this size category.

Detailed Weight Chart for 1 Inch (25 mm) MS Square Pipe

Outer Size (mm)	Wall Thickness (mm)	Approx Weight per Metre (KG)
25 × 25	0.8 mm	~0.60–0.70 KG
25 × 25	1.0 mm	~0.75–0.85 KG
25 × 25	1.2 mm	~0.90–1.00 KG
25 × 25	1.4 mm	~1.05–1.15 KG
25 × 25	1.5 mm	~1.10–1.25 KG
25 × 25	1.6 mm	~1.20–1.35 KG
25 × 25	1.8 mm	~1.30–1.45 KG
25 × 25	2.0 mm	~1.45–1.60 KG
25 × 25	2.2 mm	~1.60–1.75 KG
25 × 25	2.5 mm	~1.80–2.00 KG
25 × 25	2.6 mm	~1.90–2.10 KG
25 × 25	2.8 mm	~2.00–2.20 KG
25 × 25	3.0 mm	~2.10–2.30 KG

After planning with the chart, you should know why the delivered weight may shift slightly, so let’s look at the main reasons.

Also Read: 12mm Steel Bar Length Chart: Check Vizag Steel 12mm Rod Details

Why MS Square Pipe Weight Changes During Delivery

Small weight differences can appear during delivery because mills follow standard tolerances, and site conditions create slight shifts during handling and storage. These variations matter because your costing, fabrication flow, and unloading checks depend on steady and predictable numbers.

Here are the main factors that create weight variation during delivery:

• Mill tolerance: Mills allow small shifts in thickness that create slight changes in total weight across longer lengths.

• Weld seam formation: The weld line adds minor material that changes the final weight compared with the calculated value.

• Moisture or dust: Pipes stored in open yards may carry moisture or dust that alters recorded weight during site checks.

• Rounding during billing: Vendors may follow rounded thickness values that cause slight differences between the chart weight and the measured weight.

• Handling conditions: Pipes handled several times during transport can carry dents or marks that create small shifts in total weight.

Knowing why weight changes help you plan better, the next section shows how you can use weight data during procurement.

Also Read: Construct Smarter, Not Harder: Easy and Affordable Steel Purchases with Steeloncall

How Contractors Can Use Weight Data for Smarter Procurement

Knowing actual pipe weight helps you plan material cost, transport load, and on-site handling well before placing orders with vendors. When your team has reliable weight figures, you avoid costly surprises during billing, delivery checks, and transport coordination.

Here are key ways contractors and project buyers use accurate pipe weight:

• Cost estimation: Weight allows accurate calculation of total material cost based on per-kg pricing before booking and invoicing, reducing budget gaps.

• Transport planning: You can decide the number of pipes per truck and required equipment based on the total load expected at the site.

• Fabrication readiness: Fabrication teams use weight data to plan cutting, welding, and support placement ahead of arrival, avoiding idle labour hours.

• Delivery checks: When material arrives, you can match delivered weight to expected totals, helping catch shortages or mismatches early.

• Vendor comparison: Weight data lets you compare quotes from suppliers more fairly, especially when thickness and material grades differ on similar sizes.

• Bulk order strategy: For larger projects, knowing the total pipe weight helps set staging zones, handle manpower planning, and coordinate unloading in phases.

Once delivery variation is clear, you can see how weight data supports smarter buying decisions across different project stages.

How SteelonCall Supports Accurate & Reliable Square Pipe Sourcing

Contractors and fabricators need clear information, a steady supply, and predictable movement to keep material flow steady across all project stages. SteelonCall operates as a digital steel marketplace that reduces common buying stress by bringing clarity to weight, sizing, seller credibility, and dispatch planning at the time of order.

Here are key ways SteelonCall supports accurate and steady sourcing for square pipes:

• Verified supply: SteelonCall works with verified vendors who follow steady sizing and weight practices, reducing issues linked to unclear specifications or mixed material lots.

• Brand clarity: Buyers can request branded material, including direct access options for mills like Vizag Steel, which support consistent thickness and weight profiles.

• Transparent pricing: The only platform that displays GST-inclusive steel prices online before booking, helping buyers plan cost and weight without long calls or back-and-forth quotes.

• Bulk order support: Large orders receive structured coordination, helping project teams prepare for load capacity, handling needs, and staged unloading based on total pipe weight.

• Dispatch planning: Material movement is scheduled around project needs, reducing delays created by incorrect load estimates or unclear delivery timing.

• Order tracking: Buyers can follow order progress through support channels, helping their teams prepare manpower and equipment based on expected arrival weight.

• Technical and customer support: Teams receive guidance on sizing, weight selection, and order planning, helping them avoid mistakes linked to thickness confusion or mismatched weight charts.

This marketplace-led approach keeps square pipe buying predictable and reduces risks tied to unclear weight data, seller uncertainty, or irregular delivery patterns.

Conclusion

Clear weight data keeps your planning steady and gives your team better control during costing, transport checks, fabrication work, and delivery handling. A simple chart and steady calculations help reduce confusion and support faster decisions during busy site schedules. With the right numbers, you can place orders with confidence and reduce delays caused by unclear weight details.

For support with sizing, weight checks, or bulk planning, you can contact our experts at SteelonCall for quick guidance and steady sourcing help.

FAQs

1. What is the density of MS pipe material?

Most MS pipes follow a density close to 7.85 g/cm³, which gives suppliers a steady base for preparing weight charts used during planning. This density figure supports buyers who need predictable numbers while checking material weight during costing or delivery checks.

2. Which is heavier: MS pipe or SS pipe?

SS pipes are usually heavier because stainless steel has a higher density than mild steel, creating more weight per metre for similar sizes. This weight difference helps buyers decide material suitability when strength, corrosion needs, and handling conditions matter on-site.

3. How are MS pipes commonly manufactured?

Most MS pipes are produced by rolling steel strips into hollow shapes and joining the edges through welding before sizing and straightening. This method helps mills maintain steady thickness and shape, supporting predictable weight values across different batches.

4. What are the standard lengths available for MS pipes?

The most common length supplied by many mills is 6 metres, as it suits most structural and fabrication needs across different sectors. Some suppliers also carry 3-metre and 12-metre lengths, which help buyers plan transport, cutting layouts, and storage space.

5. What are the typical applications of MS pipes?

MS pipes are used in structural frames, fabrication work, automotive sections, light machinery setups, water flow systems, and general support structures. Their steady weight, easy handling, and wide thickness range help contractors select the right option for varied project needs.