Which type of roofing sheet is best?
For a warehouse, shed, farm building or market hall the answer is a trapezoidal steel sheet 0.45–0.50 mm thick in galvanized Z200–Z275 or pre-painted (PPGI) finish: it costs 4–6 USD/m², spans 1.5–2.5 m between purlins, lasts 15–30 years and goes up at 300–500 m² per crew per day. Corrugated (sinusoidal) sheet is the cheapest and lightest option for small roofs, fences and cladding; aluzinc gives 2–4× the life of galvanized in humid or coastal air for a 5–15% premium; polycarbonate and fibre-cement are not steel and are outside this page. When the building is heated or cooled, a sandwich panel replaces sheet plus insulation in one lift.
Profiles: 18/76 corrugated, 27/150, 38/151, 45/333
| Profile | Rib height × pitch | Cover width | Sheet width | Thickness | Typical span* | Use |
|---|---|---|---|---|---|---|
| 18/76 corrugated (sinus) | 18 × 76 mm | 1 000 mm | 1 220 mm | 0.30–0.60 | 0.9–1.2 m | Small roofs, fences, cladding, Africa/Gulf standard |
| 27/150 | 27 × 150 mm | 1 050 mm | 1 250 mm | 0.40–0.60 | 1.2–1.6 m | Wall cladding, canopies |
| 38/151 | 38 × 151 mm | 1 060 mm | 1 250 mm | 0.40–0.70 | 1.6–2.2 m | Warehouse and shed roofs — most ordered |
| 45/333 | 45 × 333 mm | 1 000 mm | 1 250 mm | 0.50–0.70 | 2.0–2.8 m | Long-span roofs, industrial halls |
| Composite deck (see deck page) | 50–75 × 250 | 750–1 000 | 1 250 | 0.70–1.20 | 2.5–3.5 m | Concrete floor slabs |
* purlin spacing, 0.50 mm S280GD, 1.0 kN/m² UDL, deflection L/200, two-span. Detailed load tables per EN 1993-1-3 on the datasheet.
Profile and material pages
Each profile has its own page with dimensions, span table, weight and fixing details: corrugated 18/76 (the sinus sheet), trapezoidal 27/150 (walls and liners), trapezoidal 38/151 (the standard roof) and trapezoidal 45/333 (long spans and decks). By material: galvanized trapezoidal sheet with the zinc-class life table and PPGI trapezoidal sheet with colours and paint systems.
Materials: galvanized, PPGI, aluzinc
| Material | Coating | Colours | Life (rural / coastal) | Price index | Choose for |
|---|---|---|---|---|---|
| Galvanized (GI) | Z140 / Z200 / Z275 | Silver spangle | 15–25 / 6–10 yr | 1.00 | Budget roofs, sheds, fences, to be painted |
| PPGI polyester | Z140–Z200 + PE 25 µm | RAL 9002, 9010, 9006, 3009, 5010, 6005, 7016, 8017 + any RAL | 20–30 / 8–12 yr | 1.20–1.30 | Visible roofs and cladding |
| PPGI PVDF | Z200–Z275 + PVDF 35 µm | Any RAL, metallic | 25–35 / 12–18 yr | 1.35–1.50 | Gulf sun, coastal, architectural |
| Aluzinc AZ150 | 55% Al-Zn 150 g/m² | Bright metallic | 30–40 / 15–20 yr | 1.08–1.15 | Humid tropics, West Africa, heat reflection |
| Stucco / matt | PE textured 30 µm | Selected RAL | 20–30 / 8–12 yr | 1.30 | Villas, low-glare roofs |
Thickness, weight and coverage
Export orders are mostly 0.45–0.50 mm; 0.30–0.35 mm is sold for fences, temporary works and price-driven African markets, 0.60–0.70 mm for long spans and foot-traffic roofs. State thickness as the base-metal thickness (BMT) — some markets quote total coated thickness (TCT), which is 0.03–0.05 mm higher.
| Thickness | Galvanized kg/m² | PPGI kg/m² | m² per ton | 6 m sheets per ton (38/151) |
|---|---|---|---|---|
| 0.30 mm | 2.7 | 2.8 | 360 | 56 |
| 0.35 mm | 3.1 | 3.2 | 315 | 49 |
| 0.40 mm | 3.6 | 3.7 | 275 | 43 |
| 0.45 mm | 4.0 | 4.1 | 245 | 38 |
| 0.50 mm | 4.4 | 4.5 | 225 | 35 |
| 0.60 mm | 5.3 | 5.4 | 188 | 29 |
| 0.70 mm | 6.2 | 6.3 | 160 | 25 |
Includes the 7–9% profile factor (flat sheet 1 250 mm → 1 060 mm cover).
Lengths, cutting and packing
Sheets are cut to your length list from 1 m to 13.5 m (11.8 m maximum for a 40' HC; longer by truck or flat-rack) with no cut-to-length charge. Packs are 60–100 sheets, 1.5–3 t, on timber bearers, film-wrapped and strapped, labelled with length and colour; the roof plan and cutting list are confirmed before rolling.
Flashings, fasteners and accessories
Every order can ship as a complete roof: ridge caps, eaves and verge flashings, corner and drip profiles bent from the same coil and colour; self-drilling screws 4.8 × 35–65 mm with EPDM washers (6–8 per m²), stitching screws, foam closure fillers (profile-matched), butyl tape, gutters and downpipes, and polycarbonate skylight sheets in the same profile.
- Ridge, eaves, verge, corner, drip, apron flashings — 2–6 m, matched colour
- Self-drilling screws with EPDM washer, colour heads
- Profile foam fillers, butyl sealing tape
- Polycarbonate skylights 18/76, 38/151
- Galvanized C/Z purlins from the same plant
Installation notes
Purlin spacing per the span table; sheets are laid against the prevailing wind with a one-corrugation side lap (two for corrugated in high wind) and 150–200 mm end lap with sealant; minimum roof pitch 5° for 45/333, 8° for 38/151, 12° for corrugated. Fix through the crest on roofs and through the valley on walls; walk on the purlin lines. Strip the protective film within 30 days and store packs off the ground on a slope.
Roofing sheet price per m²
Indicative FOB Istanbul bands per m² of cover from our weekly export list, 38/151 profile, full-container quantities. PPGI is priced by colour group (RAL 9002/9010 lowest, dark and metallic colours +5–8%); aluzinc sits 8–15% above galvanized. Per-sheet price = band × cover width × length.
Bands from our weekly export list (September 2026), FOB Istanbul, full-container quantities, excluding freight and certificates. Firm price per project on RFQ within one working day.
Export and packing
A 40' HC takes 2 500–3 500 m² of 0.50 mm sheet depending on length (about 12–14 t); a 13.6 m truck 3 000–4 000 m². Packs to 3 t, 11.8 m max in a container. HS code 7210.41 (corrugated galvanized), 7210.70 (painted), 7216.91 (cold-formed profiles).
| Term | Detail |
|---|---|
| MOQ | 1 × 40' HC (2 500–3 500 m²) or 1 truck; profiles and colours mixed |
| Incoterms | FOB Istanbul · CIF / CFR Gulf, West and East Africa · DAP EU, Balkans, Iraq, Caucasus · DAP Aktau / Almaty |
| Lead time | 7–12 working days after colour and length confirmation; RAL 9002 / 9006 / 3009 from stock |
| Packing | Packs 60–100 sheets (1.5–3 t) on bearers, film + straps; max 11.8 m in 40' HC, 13.5 m by truck |
| Container / truck | 40' HC ≈ 2 500–3 500 m² (12–14 t) · truck ≈ 3 000–4 000 m² |
| Documents | Invoice, packing list per pack, EN 10204 3.1, CE (EN 14782), certificate of origin; SASO / SONCAP / EAC on request |
| Payment | 30% advance, balance against B/L copy; L/C at sight via London office |
Certificates
EN 10204 3.1 for the coil, CE declaration to EN 14782, colour and coating certificate for PPGI, certificate of origin; SASO, SONCAP, EAC on request.
How to order
Send roof area or a length list, profile, thickness, material and colour, plus port and Incoterm. We reply within one working day with the price per m² and per sheet, the pack list, gross weight and container count; production starts after colour and cutting-list confirmation.
Standards
- EN 14782 (self-supporting metal sheet for roofing and cladding)
- EN 10346 (galvanized substrate DX51D+Z, S250GD–S350GD)
- EN 10169 (pre-painted)
- EN 508-1 (profiled sheet specification)
- EN 1991-1-3 / -1-4 (snow and wind design)
Grades
Grade data sheets (chemistry, mechanicals, equivalents) are on our reference site: DX51D+Z · S250GD · S280GD · S350GD
Frequently asked questions
Which type of roofing sheet is best?
For most industrial and agricultural roofs a 0.45–0.50 mm trapezoidal steel sheet (38/151) in PPGI or Z275 galvanized: best span-to-cost, 15–30 years, fast to install. Use aluzinc in humid coastal climates, corrugated 18/76 for small spans and fences, and sandwich panels when insulation is needed.
What is the cheapest roofing sheet?
Corrugated 18/76 galvanized sheet at 0.30–0.35 mm — around the low end of the band above per m² FOB — followed by 27/150 galvanized. Cheaper sheets need closer purlins (0.9–1.2 m) and give a shorter life, so compare on installed cost.
What is the price of corrugated sheet in the UAE?
Landed Jebel Ali in container quantity, a 0.40 mm galvanized corrugated sheet from Turkey is typically 10–20% under UAE stockist prices for the same coating class; sea freight adds about 0.4–0.6 USD/m² and duty is 5%. We quote CIF per m² and per sheet within one working day.
What is the price of a 25-foot roofing sheet?
A 7.6 m (25 ft) sheet of 38/151 at 0.50 mm covers 8.1 m²; at the indicative band above it costs roughly 35–45 USD FOB Istanbul in PPGI, about 30–40 USD in galvanized, before freight. Longer sheets have no extra cutting charge up to 13.5 m.
What thickness should I choose?
0.40–0.45 mm for sheds and cladding with purlins at ≤1.5 m; 0.50 mm for warehouses with purlins at 1.6–2.2 m (the export standard); 0.60–0.70 mm for spans over 2.2 m or roofs with foot traffic. Always specify base-metal thickness.
How many roofing sheets fit in a container?
By area about 2 500–3 500 m² per 40' HC (12–14 t of 0.50 mm), i.e. 400–550 sheets of 6 m 38/151. Length up to 11.8 m fits a container; up to 13.5 m goes by truck or flat-rack.
Do you supply flashings, screws and purlins with the sheets?
Yes — ridge, eaves and side flashings in the same coil and colour, EPDM screws, foam fillers, gutters, skylights and galvanized C/Z purlins are added to the same container.
Do you manufacture the sheets yourselves?
Yes. The profiles are roll-formed on our own lines in Dilovası from our galvanized, PPGI and aluzinc coil stock, which is why any length and small colour runs are possible.