18mm Moisture Resistant MDF Sheet 2440 x 1220mm (8″ x 4″)

18mm Moisture Resistant MDF Sheet 2440 x 1220mm from Panel Supplies Ltd is a premium MR-grade, green-core medium-density fibreboard designed for interior applications where humidity, condensation, or occasional moisture is a factor. Manufactured from fine wood fibres bonded under high pressure with moisture-resistant resin, it delivers superior dimensional stability compared to standard MDF. Suitable for trade professionals and serious DIYers alike, this full 8×4 sheet is the go-to choice for kitchen and bathroom joinery, fitted furniture, and architectural mouldings.

Key Features and Specifications

• Thickness: 18mm
• Sheet size: 2440 x 1220mm (8ft x 4ft)
• Grade: MR (Moisture Resistant) — green-core construction
• Composition: Fine wood fibres bonded with moisture-resistant urea-formaldehyde resin under high temperature and pressure
• Surface: Smooth, knot-free, and defect-free on both faces — ideal for painting, laminating, or veneering
• Machinability: Cuts, drills, routes, and shapes cleanly with standard woodworking tools; minimal edge finishing required
• Emission standard: E1 low-formaldehyde compliant
• Standard: Manufactured to BS EN 622 Parts 1 and 5
• Density: Consistent throughout — no voids, no soft spots
• Suitable for: Internal use only
• Supplier: Panel Supplies Ltd — specialist importer and wholesale distributor of timber panel products

Applications

• Kitchen cabinet carcasses, door blanks, and cabinet backs in areas subject to steam or condensation
• Bathroom furniture, vanity units, and window boards in high-humidity rooms
• Utility room shelving, boxing-in pipework, and wall panelling
• Painted skirting boards, architraves, and moulding profiles
• Shopfitting, exhibition displays, and retail interior fit-out
• Furniture components requiring a smooth, paint-ready or laminate-ready surface

Why Choose This Product

The 18mm Moisture Resistant MDF Sheet 2440 x 1220mm from Panel Supplies Ltd offers the consistent quality and reliable performance that trade customers demand. The green-core MR construction resists swelling and degradation in damp conditions where standard MDF would fail. At 18mm — the most popular thickness for carcass panels and load-bearing shelving — it provides the rigidity and screw-holding strength needed for demanding joinery work. The smooth, uniform surface minimises preparation time and delivers a crisp, professional finish whether painted, laminated, or veneered. Sourced through Panel Supplies Ltd’s responsible supply chain, this sheet material offers genuine value for both single-sheet buyers and trade accounts purchasing in volume.

Delivery in and Around London

Panel Supplies Ltd delivers this 18mm MR MDF sheet across London boroughs including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. Deliveries also extend to the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Full 2440 x 1220mm sheets are available individually or in trade quantities — pallet loads and bulk orders are welcome. Contact us to discuss scheduled site deliveries or volume pricing for larger projects.