Overview
Wedge MgO Board (WEMAG-S 1000) is a magnesium oxide board supplied in thirteen thicknesses from 4 mm to 25 mm, at a standard 2440 × 1220 mm sheet size. Every thickness is the same board to the same specification — the choice is driven purely by the application. Tell us the thickness and quantity and we quote within 24 hours.
MgO board is specified where gypsum fails: humid and wet interiors, external soffits, coastal projects, and fire-rated construction. It is dimensionally stable in moisture, it is non-combustible, and it takes a screw fixing without the crumbling you get from a saturated plasterboard.
Which thickness do I need?
| Thickness | Typical use |
|---|---|
| 4 mm / 5 mm / 6 mm | Ceiling boards, lining over existing substrate, curved work |
| 8 mm / 9 mm / 10 mm | Wall linings, drywall partitions, general interior board |
| 12 mm / 14 mm / 15 mm | Partition sheathing, wet areas, external soffits |
| 16 mm / 18 mm / 20 mm | Structural sheathing, flooring underlay, impact-rated walls |
| 25 mm | Single-layer fire and impact rated construction, heavy-duty flooring |
Specification
| Product | Wedge MgO Board — WEMAG-S 1000 |
|---|---|
| Material | Magnesium oxide (MgO) board, sulphate grade |
| Board size | 2440 × 1220 mm |
| Thickness range | 4 mm – 25 mm (13 options) |
| Applications | Wall linings, partitions, ceilings, sheathing, flooring, fire-rated systems |
| Moisture behaviour | Dimensionally stable in humid and wet conditions |
| Cut to size | Available on bulk orders |
| Pricing | Quote on request — send thickness and quantity |
Current test certificates and the full technical data sheet are issued with the quotation.
Applications
- Drywall partitions and wall linings
- Ceilings and suspended ceiling boards
- Wet areas — bathrooms, kitchens, laundries
- External soffits and semi-exposed linings
- Structural sheathing and flooring underlay
- Fire-rated partition and lining systems
- Prefabricated and modular building panels
MgO board and NBCS 2026
India’s move from NBC 2016 to NBCS 2026 replaced prescriptive material lists with a performance route. For a fire-rated partition this means the tested system report decides compliance, not the board name on the drawing. MgO board is well placed under this regime because a single board can carry combined fire, acoustic and thermal performance — but only if you can produce a current test certificate. We issue ours with every quotation.
Why buy from Wedge Industries Limited
- Manufacturer, not a reseller — production bases in India, the UK, Spain and China.
- Thirteen thicknesses from one supplier — no mixing suppliers across a project.
- Cut to size on bulk orders.
- Export ready — 45+ countries, regular Gulf and South East Asia shipments.
- Documentation — TDS, test certificate and application guide with every order.
Related products
- Fireproof Calcium Silicate Boards
- MgO Dry Wall Partition 70 mm
- MgO Floor Board
- All insulation products
Frequently asked questions
What thickness of MgO board do I need?
4–6 mm for ceiling and lining work; 8–12 mm for wall linings and partitions; 15–20 mm for structural sheathing and flooring; 25 mm where a single-layer fire or impact rating is required. Tell us the application and we will specify it.
What is the board size?
All thicknesses are supplied at 2440 × 1220 mm as standard. Cut-to-size is available on bulk orders.
Is MgO board suitable for wet areas?
Magnesium oxide board is dimensionally stable in humid and wet conditions, which is the main reason it is specified over gypsum in bathrooms, kitchens, external soffits and coastal projects.
Can MgO board be used for fire-rated construction?
Yes — MgO board is commonly specified in fire-rated partitions and linings. Under NBCS 2026 the compliance route is performance-based: the tested system report decides, not the material name. Request the current test certificate with your quotation.
How is it priced?
Price on request. The rate depends on thickness, volume and delivery location. Send your thickness and quantity and we quote within 24 hours.
Do you export MgO board?
Yes. Wedge Industries Limited manufactures in India, the UK, Spain and China and exports to 45+ countries, with regular shipments across the Gulf and South East Asia.
Request a quotation
Send your thickness, quantity and delivery location and we return a firm quotation within 24 hours.




