Last updated: May 15, 2026
Quick Answer
Dhaka is home to a growing number of sandwich panel manufacturers supplying insulated wall and roof panels for industrial, commercial, and cold-storage construction across Bangladesh. Leading suppliers offer EPS, PU, and rock wool core panels with steel facings, typically priced between BDT 800–2,500 per square foot depending on thickness and core material. Buyers should evaluate manufacturers on panel certification, core density, fire rating, and after-sales support before placing an order.
Key Takeaways
- 🏭 Dhaka-based sandwich panel manufacturers serve industries including garments, pharmaceuticals, food processing, and cold storage.
- 🧱 The three most common core materials are EPS (expanded polystyrene), PU (polyurethane), and rock wool, each suited to different thermal and fire-resistance needs.
- 💰 Panel prices in Bangladesh vary widely; always request a per-square-foot quote that includes delivery and installation.
- ✅ Certified panels (ISO, ASTM, or local BSTI standards) reduce long-term risk and improve building compliance.
- 🔍 Factory visits and sample testing are the most reliable ways to verify panel quality before bulk ordering.
- 📦 Lead times from Dhaka manufacturers typically range from 7–21 days for standard orders.
- 🌡️ PU core panels offer the best thermal performance; rock wool panels are preferred where fire resistance is the priority.
- 🤝 Many manufacturers offer turnkey installation services, which can reduce project coordination time significantly.
What Are Sandwich Panels and Why Are They Popular in Dhaka?
Sandwich panels are prefabricated building elements made of two rigid metal face sheets bonded to an insulating core. They're popular in Dhaka because they combine structural strength, thermal insulation, and fast installation into one product, making them ideal for Bangladesh's humid climate and rapid construction demands.
How a sandwich panel is structured:
| Layer | Material Options | Function |
|---|---|---|
| Outer face sheet | Galvanized steel, aluminum | Weather protection, structural rigidity |
| Core | EPS, PU, rock wool, PIR | Thermal insulation, fire resistance |
| Inner face sheet | Galvanized steel, aluminum | Interior finish, hygiene surface |
Dhaka's construction sector has expanded rapidly over the past decade, driven by growth in ready-made garments (RMG) factories, pharmaceutical plants, and food-grade cold rooms. All of these applications demand fast-build, energy-efficient enclosures, which is exactly what sandwich panels deliver.
Key fact: Bangladesh's industrial construction sector has been one of the fastest-growing in South Asia, and prefabricated panel systems are a core reason project timelines have shortened in sectors like RMG and food processing.
How Do Sandwich Panel Manufacturers in Dhaka Compare to Imported Panels?
Local sandwich panel manufacturers in Dhaka generally offer faster delivery, lower freight costs, and easier after-sales support compared to imported panels from China or India. However, imported panels may carry internationally recognized certifications that some multinational clients require.
Local vs. imported: a quick comparison
| Factor | Dhaka Manufacturers | Imported Panels |
|---|---|---|
| Lead time | 7–21 days | 30–60+ days |
| Price | Moderate (BDT 800–2,000/sqft est.) | Variable; often higher after duties |
| Certification | BSTI, some ISO | ISO, FM, UL, CE |
| Customization | High flexibility | Limited by MOQ |
| After-sales support | On-site, responsive | Slower, remote |
Choose local if: your project timeline is tight, you need custom dimensions, or your budget is cost-sensitive.
Choose imported if: your client or building code requires specific international certifications (FM Global, UL 94, etc.) that local manufacturers don't yet hold.
What Types of Sandwich Panels Do Dhaka Manufacturers Produce?
Reputable sandwich panel manufacturers in Dhaka produce several panel types, each designed for a specific application. Understanding the differences prevents costly specification errors.
EPS Core Panels
Expanded polystyrene core panels are the most affordable option. They offer decent thermal insulation (thermal conductivity around 0.035–0.040 W/m·K) and are widely used in warehouses, garment factories, and temporary structures. They are not suitable where fire resistance above Class B is required.
PU/PIR Core Panels
Polyurethane and polyisocyanurate core panels deliver superior thermal performance and are the standard choice for cold rooms, pharmaceutical cleanrooms, and food processing facilities. PU panels are denser and more rigid than EPS, and PIR variants offer improved fire resistance.
Rock Wool Core Panels
Rock wool (mineral wool) core panels are the go-to choice when fire resistance is non-negotiable. They can achieve fire ratings of 60–120 minutes and are commonly specified for chemical plants, server rooms, and buildings where fire codes are strict.
For a full overview of available panel types, see the sandwich panel products catalogue from one of Dhaka's established suppliers.
How to Choose the Best Sandwich Panel Manufacturer in Dhaka
Selecting the right manufacturer comes down to five practical criteria. Skipping any of them is where most buyers run into problems.
1. Verify Panel Specifications and Core Density
Ask for the technical data sheet. Core density directly affects insulation performance and structural strength. For PU panels, a core density below 40 kg/m³ is generally considered substandard for commercial applications.
2. Check Certifications and Compliance
Look for BSTI certification at minimum. For export-linked facilities or multinational tenants, ask whether the manufacturer can supply panels tested to ISO 9001 quality management standards.
3. Inspect the Production Facility
A factory visit reveals quality control practices that no brochure will show. Check whether the continuous lamination line is well-maintained and whether raw material storage is climate-controlled.
4. Request Sample Panels and Third-Party Testing
Ask for a sample before committing to a large order. Send it to an independent lab for core density, bond strength, and fire classification testing if your project demands it.
5. Evaluate After-Sales and Installation Support
Many projects run into problems during installation, not manufacturing. Manufacturers who offer trained installation teams reduce rework risk significantly.
For detailed guidance on this process, the complete guide to choosing a sandwich panel manufacturer and supplier covers each step in depth.
What Are the Key Applications for Sandwich Panels in Dhaka?
Sandwich panels manufactured in Dhaka are used across a wide range of sectors. Each application has specific performance requirements that should drive material selection.
- Garment and textile factories: EPS or PU wall and roof panels for fast, cost-effective factory construction.
- Cold storage and refrigeration rooms: High-density PU panels (80–100 mm thick) with hygienic inner surfaces. See how sandwich panel rooms are configured for cold chain applications.
- Pharmaceutical cleanrooms: PU panels with smooth, anti-microbial coatings to meet GMP standards.
- Food processing plants: Panels with food-safe inner liners and sealed joints to prevent contamination.
- Commercial buildings and offices: Lightweight panel systems that reduce structural load and speed up fit-out.
- Temporary and modular structures: EPS panels for site offices, security booths, and temporary event structures.
What Is the Price of Sandwich Panels in Dhaka in 2026?
Sandwich panel pricing in Dhaka depends on core material, panel thickness, steel gauge, and order volume. The figures below are market estimates for 2026 and should be confirmed with suppliers through a direct quotation.
| Panel Type | Thickness | Estimated Price (BDT/sqft) |
|---|---|---|
| EPS core | 50 mm | 800–1,100 |
| EPS core | 75 mm | 1,000–1,300 |
| PU core | 50 mm | 1,200–1,600 |
| PU core | 100 mm | 1,600–2,200 |
| Rock wool core | 50 mm | 1,400–2,000 |
| Rock wool core | 100 mm | 1,900–2,500 |
Note: Prices are market estimates based on supplier data available in 2026. Actual prices vary by supplier, steel grade, and project volume. Always request a formal quotation.
For current pricing details, the sandwich panel price in Bangladesh page provides updated cost breakdowns from local suppliers.
What Should Buyers Know About Working With Sandwich Panel Manufacturers in Bangladesh?
Working with sandwich panel manufacturers in Bangladesh is generally straightforward, but a few practical points help avoid delays and disputes.
Common mistakes buyers make:
- Ordering without a confirmed layout drawing. Manufacturers cut panels to size. Changes after production start incur waste charges.
- Ignoring steel gauge specifications. A 0.4 mm vs. 0.5 mm steel face sheet difference affects both price and durability significantly.
- Assuming installation is included. Always confirm in writing whether installation is part of the contract.
- Paying 100% upfront. Standard practice in Dhaka is 50–70% advance with the balance on delivery or completion.
- Not specifying joint type. Tongue-and-groove joints offer better airtightness than flat joints for cold rooms and cleanrooms.
For a broader view of the Bangladesh sandwich panel market and manufacturer capabilities, the sandwich panel manufacturer in Bangladesh resource is a useful starting point.
FAQ: Sandwich Panel Manufacturers in Dhaka
Q: Are there sandwich panel manufacturers in Dhaka who supply nationwide?
Yes. Most established Dhaka-based manufacturers deliver across Bangladesh, including Chittagong, Sylhet, and Khulna. Freight costs are typically added to the panel price.
Q: How long does it take to manufacture and deliver sandwich panels in Dhaka?
Standard orders take 7–14 working days for production. Delivery within Dhaka adds 1–2 days; outstation delivery adds 2–5 days depending on location.
Q: What thickness of PU sandwich panel is standard for a cold room in Bangladesh?
For standard cold storage (0°C to 5°C), 100 mm PU panels are the most common specification. For blast freezing rooms (-18°C to -25°C), 150 mm or 200 mm panels are typically required.
Q: Can sandwich panels be used for roofing in Dhaka's climate?
Yes. Roof sandwich panels are widely used in Dhaka. Specify a panel with a minimum roof pitch of 5 degrees and ensure the outer steel sheet has a polyester or PVDF coating for corrosion resistance in Bangladesh's humid conditions.
Q: Do Dhaka manufacturers offer custom colors and finishes?
Most manufacturers offer a range of RAL colors for the steel face sheets. Custom colors may require minimum order quantities and longer lead times.
Q: Is BSTI certification mandatory for sandwich panels in Bangladesh?
BSTI certification is not universally mandated for all panel applications as of 2026, but it is increasingly required for government projects and export-linked factory buildings. Always check with your project's approving authority.
Q: What warranty do Dhaka sandwich panel manufacturers typically offer?
Warranties vary. Most reputable manufacturers offer 1–3 years on manufacturing defects. Steel coating warranties (against corrosion) may extend to 10–15 years depending on the coating grade.
Q: Can I visit a sandwich panel factory in Dhaka before ordering?
Yes, and it's strongly recommended for large orders. Most manufacturers welcome factory visits. Contact the supplier's sales team to schedule a visit.
Q: What is the minimum order quantity (MOQ) for sandwich panels in Dhaka?
MOQs vary by manufacturer. Some accept orders from 50 square meters; others set minimums at 200–500 square meters for custom specifications.
Q: Are sandwich panels suitable for earthquake-prone zones in Bangladesh?
Sandwich panels are lightweight, which generally reduces seismic load on structures. However, the primary structural frame must be designed by a qualified structural engineer to meet Bangladesh National Building Code (BNBC) seismic requirements.
Conclusion: Actionable Next Steps for Buyers in 2026
Dhaka's sandwich panel manufacturing sector offers genuine quality and value for buyers who know what to look for. The market has matured enough that local manufacturers can meet the demands of pharmaceutical-grade cleanrooms, industrial cold storage, and large-scale factory construction without the delays and duties that come with imported panels.
Here's what to do next:
- Define your application first. Decide whether thermal performance, fire resistance, or cost is your primary driver, then select the core material accordingly.
- Get at least three quotations. Compare on panel specs (core density, steel gauge, coating type), not just price per square foot.
- Request technical data sheets and certifications before signing any contract.
- Visit the factory for orders above 500 square meters.
- Confirm installation scope in writing and agree on a payment schedule tied to delivery milestones.
- Check current pricing using resources like the sandwich panel price in Bangladesh page to benchmark supplier quotes.
- Review completed projects from the manufacturer's portfolio. Suppliers with a strong client track record are lower-risk choices for large projects.
For buyers ready to explore specific products and get in touch with a Dhaka-based supplier, the sandwich panel products page and contact page are the most direct starting points.
References
- Bangladesh Standards and Testing Institution (BSTI) — bsti.gov.bd (official standards body for Bangladesh)
- Bangladesh National Building Code (BNBC) 2020 — Housing and Building Research Institute, Bangladesh
- ASTM International — ASTM C1289 (Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board)
- ISO 9001:2015 Quality Management Systems — International Organization for Standardization