Calculator page · 4 min read
MDF cut list calculator
MDF panels machine predictably, but dust and weight push you toward accurate nesting the first time. Treat the job like an MDF cut list calculator plus layout: know each finished rectangle, quantity, and sheet size before you load the table saw or CNC.
How Cutlistor nests MDF
Use the free sheet cut list optimizer to enter MDF stock sizes, parts, kerf, and optional grain or edge-banding notes. You will see nested layouts and can export a PDF for the shop.
MDF-specific tips
Double-check thickness (often ¾ in or 18 mm nominal) and whether you need paint gaps. Thickness mistakes show up late if the cut list only stores width and height.
MDF thickness and paint allowances
List finished sizes after squaring. Put kerf in the optimizer, not in part dimensions.
| Nominal | Common use | Nesting note |
|---|---|---|
| 18 mm / ¾ in | Cabinet decks, sides | Default casework thickness |
| 12 mm / ½ in | Drawer bottoms, backs | Separate stock row required |
| 25 mm / 1 in | Workbench tops | Heavier — verify saw capacity |
MDF vs plywood on the same job
Run separate optimizer sessions per thickness and core. Mixing MDF and ply on one sheet layout hides purchasing mistakes.
Step-by-step MDF sheet workflow
Start with the MDF sheet SKU you actually purchase — 2440×1220 mm or 96×48 in, often 18 mm (¾ in). Add every finished part as width × height × quantity. Set kerf to 3.2–4.0 mm depending on scoring plus main blade so the optimizer subtracts realistic blade loss for MDF.
Run the layout and read sheet count plus yield before buying. If yield looks low on MDF, check grain locks, mixed thicknesses, or whether neat grid when labeling many identical casework parts fits your crew better.
Export the PDF when the diagram matches shop habits. If a dimension changes, edit the row and recalculate — the MDF nest refreshes immediately.
- Confirm nominal 18 mm vs actual caliper thickness
- Allow paint gap in finished sizes if finishing before assembly
Layout methods for MDF
Cutlistor offers multiple sheet strategies because no single algorithm wins every MDF job. Rips and rows suits table-saw-first shops. Fewest sheets pushes yield when MDF cost dominates. Router / CNC layout helps dense packs when spoilboard spacing is set.
MDF machines predictably but is heavy — accurate first-pass nesting avoids reloading sheets.
| Layout method | Best for MDF |
|---|---|
| Rips & rows | Table saw breakdown of raw MDF |
| Fewest sheets / least waste | Large paint-grade casework runs |
| Router / CNC layout | CNC MDF doors and routed profiles |
Worked example: paint-grade cabinet decks
Six 568×610 mm decks and two 720×610 mm sides on 2440×1220 mm 18 mm MDF with 3.2 mm kerf: run the nest, read sheet count, export PDF before priming.
Import, export, and verification
Import CSV or XLSX from /samples/cutlist-import/ when your MDF cut list already lives in a spreadsheet. Group rows with material codes when you buy multiple MDF SKUs.
Export kerf-aware PDF cut plans for the floor. Paid plans add saved projects, stock inventory, AI plan scanning, and 3D CAD import (glTF, GLB, Collada).
Free anonymous use includes 3 calculations per day, up to 15 part rows per session, and CSV/XLSX imports of up to 5 rows.
Before you cut MDF: checklist
MDF dust management is a shop concern — fewer sheet reloads saves floor time as well as material.
Keep moisture-resistant MDF on a separate material code from raw MDF.
FAQ
- Should MDF parts rotate freely?
- Yes for hidden carcass parts. Lock orientation on routed or profiled faces.
- Does MDF need a different kerf than plywood?
- Often similar on the same blade, but verify on scrap — composite density can differ slightly.
- Is this MDF calculator free?
- Yes. The sheet cut list optimizer runs in your browser with daily limits. Accounts unlock saved projects and higher caps.
- What sheet sizes work for MDF?
- Enter any rectangle you purchase — 2440×1220 mm or 96×48 in, often 18 mm (¾ in). Match the delivery note, not a generic label.
- Does kerf matter on MDF?
- Yes. Set kerf to 3.2–4.0 mm depending on scoring plus main blade. Underestimating kerf on dense MDF nests can shift sheet count.