Corrugated Sheet & Wave Panel Singapore
Corrugated metal sheet — specified in Singapore as wave panel, fluted sheet, or corrugated cladding — is a roll-formed metal product with a repeating sine-wave or ribbed profile. The profile geometry adds rigidity to thin sheet metal without increasing weight, making it a practical material for wall cladding, temporary hoarding, lightweight roofing, industrial facades, and perimeter screening.
This guide covers profiles, material grades, standard dimensions, and applications across Singapore's construction and industrial sectors.
What Is Corrugated Metal Sheet?
Corrugated sheet is flat metal rolled into a repeating wave or rib profile during manufacturing. The wave geometry distributes applied loads across the cross-section of the sheet, allowing thinner-gauge material to span greater distances than flat sheet of equivalent thickness.
In Singapore, corrugated sheet is most widely specified in galvanised steel (GI) and aluminium. Stainless steel corrugated sheet is used in industrial and process plant applications where chemical resistance or hygiene requirements apply.
The material is available in standard sheet widths and can be cut to length for site requirements.
The term "wave panel" is used interchangeably with "corrugated sheet" in architectural and contractor specifications across Singapore. Both refer to the same sine-wave profile product. "Fluted sheet" is also used occasionally, though fluted more precisely describes a square or trapezoidal rib profile rather than a true sine wave.
Corrugated Sheet vs Alternative Cladding Materials
Corrugated sheet is not always the right choice — the selection depends on the application, structural span, finish requirement, and budget. The table below compares corrugated sheet against the most common alternatives used in Singapore.
| Material | Profile | Typical Thickness | Strength-to-Weight | Cost (relative) | Best For |
|---|---|---|---|---|---|
| Corrugated sheet (GI / aluminium) | Sine wave | 0.4–1.0 mm | High — wave adds rigidity | Low–medium | Hoarding, industrial cladding, lightweight roofing |
| Flat solid sheet | Flat | 0.5–6.0 mm | Lower — requires thicker gauge for span | Low–medium | Enclosed panels, backing plates, fabrication blanks |
| Perforated metal sheet | Flat with holes | 0.8–3.0 mm | Medium | Medium | Facade screening, ventilation, acoustic panels |
| Expanded metal mesh | Open diamond mesh | 0.5–3.0 mm (strand) | High per weight | Low–medium | Walkways, infill panels, solar screens |
Product Range and Specifications
Supply Bay supplies corrugated sheet in GI, aluminium, SS304, and SS316. Standard profile dimensions and material options are set out below.
Standard Sine-Wave Corrugated Profile
Sine-wave corrugation is produced by roller forming — the sheet passes through a set of matched rollers that progressively form the continuous wave profile. This method is suited to true sine-wave and gradual-curve profiles and produces consistent geometry along the full sheet length.
What We Offer
Thickness ranges from 0.4 mm to 1.0 mm for aluminium and GI; SS304 and SS316 are available from 0.5 mm to 1.0 mm. Standard sheet size is 4FT X 8FT (approximately 1200mm x 2400mm). Custom dimensions and profiles can be fabricated to a DWG or CAD drawing — Supply Bay accepts customer-supplied drawings and quotes based on sheet size, profile geometry, number of bends, and bend complexity.
Deep Corrugated Profile
Edge bending produces angular or multi-break profiles — each fold line is formed individually on a press brake. This method is used for square-wave, trapezoidal, and custom geometric profiles where the profile is defined by discrete bend angles rather than a continuous curve.
What We Offer
Pricing for edge-bent profiles depends on the number of bends per sheet and the complexity of the bend sequence; supply this information when requesting a quotation.
Applications
Architectural Wave Panel Cladding
Corrugated sheet used as an architectural facade material — referred to in Singapore project specifications as "wave panel cladding" — is typically aluminium with powder coat or PVDF finish. The sine-wave profile creates shadow and texture on the facade face, which varies in appearance throughout the day as solar angle changes. This application is common on community centres, HDB void deck screens, food court facades, light industrial buildings repurposed for F&B or retail use, and pop-up or semi-permanent structures. Horizontal orientation of the wave panel reads as a lighter, more domestic aesthetic; vertical orientation reads as more formal and urban.
Perimeter Fencing and Screening
GI corrugated sheet is used as infill panel material for perimeter security fencing — fixed to steel SHS or CHS post frames — across industrial facilities, logistics warehouses, and storage yards. The solid panel provides full visual screening while the wave profile resists wind load at sheet thicknesses that keep panel weight manageable for installation by a two-person crew without lifting equipment. For permanent installations, powder-coated GI or aluminium is specified over bare GI to reduce maintenance painting cycles.
Temporary Works and Event Structures
For temporary structures — food festival sites, event pavilions, pop-up markets, and covered walkways — lightweight aluminium corrugated sheet is used as a roof and wall material because it can be erected and dismantled quickly without specialist equipment. Urban Redevelopment Authority (URA) temporary use permits typically require structures to be non-permanent and demountable; aluminium corrugated sheet fixed with exposed stainless steel screws to a lightweight frame satisfies this requirement.
Material Grades
| Grade | Corrosion Resistance | Weight | Typical Finish | Singapore Applications |
|---|---|---|---|---|
| Galvanised steel (GI) | Good — zinc coating; re-paint if cut edges exposed | High | Bare GI, painted, powder coat | Low-cost wall cladding, temporary works |
| Aluminium (AA1060 / AA3003) | Excellent — self-passivating; no painting required | Low (~1/3 weight of steel) | Mill, anodised, powder coat | Architectural cladding, lightweight roofing, F&B |
| SS304 stainless steel | Very good — general external use | High | Mill, brushed, powder coat | Commercial facades, cleanrooms |
| SS316 stainless steel | Excellent — molybdenum addition resists chloride pitting | High | Mill, brushed | Coastal facades, marine zone, chemical plants, Jurong Island process plant |
Frequently Asked Questions
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The terms are used interchangeably in Singapore construction specifications. Both refer to metal sheet formed with a repeating sine-wave profile. "Wave panel" is more common in architectural specifications and interior design contexts; "corrugated sheet" is more common in engineering, industrial, and contractor procurement. There is no technical difference between them.
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GI corrugated is lower cost and heavier. It requires painting or powder coating for permanent external applications, and cut edges need treatment to prevent edge corrosion. Aluminium corrugated is lighter, self-passivating, and does not require painting to maintain corrosion resistance, but costs more. For a permanent facade in a commercial or industrial context, aluminium is the lower-maintenance specification over a 15–20 year building life. For temporary hoarding or short-term site applications, GI is the standard choice.
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Corrugated and wave panel cladding on conservation buildings or in URA conservation areas requires URA approval. GI corrugated sheet is generally not approved for conservation facades due to its visual character. Aluminium corrugated with a carefully specified colour and profile may be considered for secondary or rear elevations, but the architect must confirm with URA prior to specification. For Grade II or Grade III conservation buildings, panel material, profile, and colour typically require pre-application consultation with URA.
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Yes. SS304 and SS316 corrugated sheet in both standard sine-wave and deep corrugated profiles are available. SS316 is specified for coastal and marine zone applications and for chemical process plant on Jurong Island. SS304 covers general food processing, pharmaceutical, and commercial facade applications where stainless is the required visual finish.
Supply Bay Pte Ltd supplies corrugated sheets and wave panels for Singapore construction, industrial, and architectural projects. Contact us at info@supplybaystore.com or +65 6524 3913.
Supply Bay is Singapore's leading supplier of architectural sheet metal — expanded mesh, perforated panels, laser-cut screens, and solid sheets in aluminum, stainless steel (SS304, SS316), mild steel, and galvanized steel.
