Iron Casing Pipe for Construction in Nigeria — 16mm & 25mm Price Guide 2026
Iron Casing Pipe for Construction in Nigeria — Complete Buyer’s Guide
When I started exporting hardware to Nigeria almost a decade ago, iron casing pipe was one of the first products that surprised me.
Everyone talks about door locks and hinges — but nobody mentions the quiet workhorse of every Nigerian construction site: the humble casing pipe.
Over the years, I’ve shipped thousands of tons of 16mm and 25mm casing pipe from Yiwu to Lagos, Abuja, and Port Harcourt. In this guide, I’ll share exactly what Nigerian builders need to know — prices, specs, what to look for in quality, and how to import from China without headaches.
📋 Table of Contents
- What is Iron Casing Pipe?
- Common Uses in Nigerian Construction
- 2026 Price Guide
- Sizes and Specifications
- Quality Checklist
- How to Import Casing Pipe from China
- Why Nigerian Builders Choose SOLA Hardware
What is Iron Casing Pipe?
Iron casing pipe (also called conduit pipe, conduit tube, or threaded steel pipe in some contexts) is a hollow steel tube used in construction for:
- Embedding electrical wiring in concrete walls and floors
- Structural reinforcement in concrete columns and beams
- Protective sheathing for plumbing and gas lines
- Underground cable routing for outdoor installations
In Nigeria, the two most popular sizes are:
| Size | Typical Use |
|---|---|
| 16mm (½ inch) | Standard electrical wiring in walls, lighting circuits |
| 25mm (1 inch) | Main power lines, underground conduits, heavy wiring runs |
Think of it as the bones that carry your building’s nervous system — it needs to be strong, durable, and correct from day one, because once it’s cast in concrete, you can’t change it.
Common Uses in Nigerian Construction
🏠 Residential Buildings
- All wall wiring for switches, sockets, and lights
- Underground cable runs from main meter to house
- AC and generator power lines
🏢 Commercial Projects
- Office buildings and retail complexes
- Hotel room wiring bundles
- Security system conduits
🏭 Industrial Facilities
- Heavy machinery power supply
- Control room wiring protection
- Factory floor conduit networks
🏥 Public Infrastructure
- Hospital electrical systems
- School building installations
- Government facility wiring
From the bungalows of Enugu to the high-rises of Victoria Island, casing pipe is literally the backbone of Nigerian electrical infrastructure.
2026 Price Guide
Here are real FOB Yiwu prices as of mid-2026:
16mm Iron Casing Pipe
| Wall Thickness | FOB Price (per meter) | Quantity per 20ft Container |
|---|---|---|
| 1.5mm | $0.30 - $0.45 | ~12,000 meters |
| 2.0mm | $0.45 - $0.65 | ~9,000 meters |
| 2.5mm | $0.60 - $0.80 | ~7,500 meters |
25mm Iron Casing Pipe
| Wall Thickness | FOB Price (per meter) | Quantity per 20ft Container |
|---|---|---|
| 1.5mm | $0.50 - $0.70 | ~7,000 meters |
| 2.0mm | $0.70 - $1.00 | ~5,500 meters |
| 3.0mm | $1.10 - $1.50 | ~4,000 meters |
Note: These are factory direct prices. Retail prices in Nigerian markets typically add a 30-60% markup depending on the dealer and location.
Price Comparison: China Factory vs Nigerian Market
| Item | Factory Direct (FOB) | Lagos Market (Retail) | Savings |
|---|---|---|---|
| 16mm x 1.5mm | $0.40/m | ₦1,500-2,000/m (~$1.00-1.35) | ~60-70% |
| 25mm x 2.0mm | $0.85/m | ₦2,500-3,500/m (~$1.70-2.35) | ~50-65% |
Exchange rate used: ₦1,480/USD (June 2026)
Sizes and Specifications
Standard Lengths
- Standard packing: 3-6 meters per piece
- Custom lengths available on request
- Bundled in steel straps for easy handling
Wall Thickness Guide
| Application | Recommended Size & Thickness |
|---|---|
| Wall wiring (lighting, sockets) | 16mm x 1.5mm |
| Main power line (in wall) | 25mm x 2.0mm |
| Underground conduit | 25mm x 2.5mm - 3.0mm |
| Exposed outdoor run | 25mm x 2.5mm+ with anti-corrosion coating |
Material Grades
Standard material is Q195/Q235 welded steel tube, hot-dipped or electro-galvanized for corrosion resistance.
Quality Checklist
The Nigerian market has everything from high-quality import pipe to thin-walled scrap metal. Here’s how to tell the difference:
✅ Good Quality Pipe
- Uniform wall thickness — no thin spots or uneven seams
- Clean weld seam — smooth, no slag or holes
- Proper galvanization — even coating, no rust spots
- Bends without cracking — test bend a sample to 90°
- Clear markings — size, grade, and manufacturer stamped
❌ Poor Quality Pipe
- Uneven wall thickness — often thinner than advertised
- Rough weld seam — can damage wire insulation when pulled through
- Rust already forming — means poor or no galvanization
- Cracks when bent — brittle, substandard steel
- Underweight — pack is noticeably lighter than it should be
Simple Test
Take a 1-meter sample and weigh it:
- 16mm x 1.5mm should weigh approximately 0.55-0.62 kg/m
- 25mm x 2.0mm should weigh approximately 1.25-1.35 kg/m
Significantly lighter? The wall thickness is thinner than specified.
How to Import Casing Pipe from China
Step 1: Determine Your Quantity
For a standard 3-bedroom bungalow in Nigeria:
- 16mm pipe: 200-300 meters
- 25mm pipe: 50-100 meters
For a 20-40ft container (wholesale importers):
- 20ft container: 8,000-12,000 meters mixed sizes
- 40ft HQ container: 18,000-24,000 meters
Step 2: Place Your Order
Contact SOLA Hardware with:
- Target size (16mm, 25mm, or both)
- Wall thickness preference
- Total quantity
- Destination port (Lagos/Tincan, Port Harcourt, Onne)
Step 3: Production & Shipping
| Process | Timeline |
|---|---|
| Factory production | 7-15 days |
| Sea shipping to Lagos | 20-25 days |
| Customs clearance | 3-7 days |
| Total | 30-45 days |
Step 4: Documentation
SOLA Hardware provides all Nigerian customs documents free of charge:
- ✅ SONCAP Certificate
- ✅ Form M processing
- ✅ PAAR documents
- ✅ Commercial Invoice & Packing List
- ✅ Bill of Lading
- ✅ Certificate of Origin
Shipping Cost Estimate (2026)
| Route | 20ft Container | 40ft HQ Container |
|---|---|---|
| Yiwu → Lagos (Tincan) | $1,500 - $2,200 | $2,200 - $3,200 |
| Yiwu → Port Harcourt | $1,800 - $2,500 | $2,500 - $3,500 |
| Yiwu → Onne | $1,700 - $2,400 | $2,400 - $3,400 |
FCL rates fluctuate; contact us for current pricing.
Why Nigerian Builders Choose SOLA Hardware
🏭 Direct from Factory
We are not a trading company — we work directly with ISO 9001 certified steel pipe manufacturers in China. No middleman markup.
📄 Complete Documentation
SONCAP, Form M, PAAR — all handled by our team. We know the Nigerian clearance process inside and out.
🚚 Flexible Order Sizes
From a 1,000-meter trial order to full container loads. We help first-time importers start small and scale up.
💬 WhatsApp Support
Questions at 10 PM Nigerian time? Our team answers. We’ve been doing this for 10 years.
Get Factory Direct Pricing
Ready to import casing pipes for your next project? Contact SOLA Hardware for a free quote:
💬 WhatsApp: +86 183 5800 8400
📧 Email: [email protected]
Free SONCAP support included with every order.
Free samples available for serious buyers.
Get Free Samples & Quote
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