MDF Cut Calculator

Get an optimized cutting layout for medium-density fibreboard sheets. Less wasted material, fewer trips to the lumber yard.

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Why MDF needs careful cut planning

MDF is heavier and more expensive per square foot than plywood, and every wasted offcut means extra dust, extra weight to dispose of, and a bigger hole in your budget. Standard MDF panels in North America run 4×8 ft (49×97 in nominal); in Europe, 2440×1220mm and 2800×2070mm are typical. Sheets are dense — a single 18mm 4×8 panel weighs around 95 lb (43 kg), so reducing the number of sheets you have to lift is reason enough to optimize.

Our cut calculator runs a 2D bin-packing algorithm with rotation, kerf compensation, and waste reporting. Enter your panel size, paste in a parts list, and the tool returns the cutting diagram and total sheet count. Free, no signup needed.

Common MDF panel sizes

Panelmminches
Standard (US)2440 × 122096 × 48
European wide2800 × 2070110 × 81
Half-sheet1220 × 122048 × 48
Long panel3050 × 1220120 × 48

MDF-specific cutting tips

Use a higher tooth count blade. 60+ tooth ATB or TCG blades give cleaner edges in MDF and produce finer dust that's easier to control with a vacuum.

Plan kerf carefully. MDF doesn't tear out, but a 3.2mm kerf still adds up — on a 30-part cabinet job, that's 90mm of board you've sawdusted. Set kerf accurately in the optimizer.

Keep sealable offcuts. Bare MDF edges drink in moisture and swell. If you're saving a remnant for a future project, store it flat and edge-seal with primer.

Wear a respirator. MDF dust contains urea-formaldehyde resin. Cut outdoors when possible, or hook a HEPA-rated vacuum to your saw.

Consider grain direction. MDF is isotropic so rotation is always safe — unlike plywood, you don't lose strength when a panel runs the "wrong way." Let the optimizer rotate freely.

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