MEDITE Premier MDF boards

No. Premier is an interior grade MDF for dry indoor conditions only. For humid indoor rooms such as bathrooms and kitchens use MEDITE MR MDF. For outdoor work use MEDITE Exterior, or MEDITE Tricoya Extreme where the exposure is permanent.

Premier is for dry interiors; MR MDF is built for humid ones. MR MDF is also the denser board, which gives it a cleaner cut on deep-routed profiles and better screw holding. If a room gets steamy, the answer is MR MDF. If it stays dry, Premier does the job for less.

We stock four sheet sizes. 2440 x 1220mm in 3, 4, 6, 9, 12, 15, 18, 22, 25, 30 and 36mm. 3050 x 1220mm in 3, 4, 6, 9, 12, 15, 18, 22, 25 and 30mm. 2440 x 1525mm in 6, 12, 18 and 25mm. 3050 x 1525mm in 12, 15, 18 and 25mm. All can be bought as full sheets or cut to size.

Yes. We supply Premier as full sheets or cut to size at both our North London and South London branches, and we can CNC and edgeband it. Premier is suited to CNC machining and cuts cleanly with standard woodworking tooling.

Yes. The pre-sanded face is smooth enough to take paint, spray finishes and even the thinnest laminates without preparation beyond a light key. Round edges and corners to a 3mm radius before coating, as paint pulls away from a sharp arris.

Yes. MDF edges are more porous than the faces and absorb more coating, so seal them properly or they'll drink primer and finish rough. This applies to every MDF, not only Premier.

D4 class or equivalent adhesives, following the adhesive manufacturer's guidance. Most standard wood glues work on MDF; choose the grade to suit the end use. When bonding veneer or laminate, balance the panel by treating both faces.

Predrill before screwing, to at least 85% of the screw's core diameter. Keep face fixings at least 12mm from the edge and 25mm from a corner, and edge fixings at least 70mm from a corner. Nails and staples hold less well and are mainly for clamping glued joints.

L-MDF is a lighter grade defined in EN 622-5. MEDITE Premier is made to L-MDF grade between 9mm and 25mm, and to standard MDF grade below 9mm and above 25mm. It's why the published stiffness figures dip through the middle of the range, and it's by design rather than a defect.

It achieves D-s2, d0 for reaction to fire under EN 13986 in thicknesses of 9mm and above. It is not a flame retardant board. Where a fire rating is required, specify MEDITE Premier FR, which achieves Euroclass B.

MEDITE Premier meets the tighter EU REACH E05 limit that applies from August 2026, confirmed by testing to EN 717-1, and is CARB Phase 2 compliant. That's a lower emission threshold than the E1 classification most MDF is held to.