• How To Cut MDF – Straight & Curved Cuts

    | by Holly Wood

    When you’re tackling a tough DIY project, there’s one thing to keep in mind – the devil is in the details. And that means getting precise and accurate cuts when it comes to materials like MDF. Sure, you could just use whatever saw you have on hand and call it a day; but unless your aim as a contractor or tradesman is sloppy and rough work, accuracy matters. That’s why we’ve put together this comprehensive guide on how to cut MDF board – straight & curved cuts included!

    The Basic Knowledge About MDF

    Before we dive into the process of cutting MDF boards (Medium Density Fibreboard), it’s vital to understand the basics.

    MDF boards are a popular and affordable wood alternative used in various industries, from furniture making to interior decoration. Their smooth surface and consistent texture make them a prime choice for many DIY enthusiasts and professionals alike.

    General Tools You Need to Cut MDF

    Ready to start cutting? Not so fast. First, you need to ensure you have the correct tools for the job. For cutting MDF sheets, you’ll need:

    1. A circular saw or table saw – Circular saws guarantee straight cuts through the MDF sheet every time, unlike the jigsaw, which requires a steady hand for straight cuts.
    2. Jigsaw (with a bi-metal cutting blade) for curved cuts
    3. High-quality carbide-tipped blade – The optimal type is a narrow blade featuring numerous teeth.
    4. Clamps
    5. Straight edge guide
    6. Tape measure
    7. Safety gear (goggles, dust mask, and ear protection)

    How to Cut MDF: A Step-by-Step Guide

    Circular Saw

    Cutting Medium Density Fibreboard (MDF) with precision calls for the right tool – a circular saw. Favoured by many for its ability to deliver MDF straight cuts effortlessly, here’s a step-by-step guide on how to use it for cutting MDF.

    For the best results, opt for a circular saw that delivers a cutting velocity of nearly 3,000 meters per second.

    Furthermore, a blade width of around 14 inches and possessing no less than a blade teeth count of 60 should be your go-to choice. If feasible, aim for a blade endowed with a carbide tip.

    Circular Saw Cutting

    • Begin by positioning the circular saw in a manner where the saw blade’s bottom aligns with the side of the MDF board.
    • Next, tweak the depth knob or the lever of the saw to reposition the blade until its tip is just beneath the MDF board.
    • To optimise the blade’s cutting efficacy, it’s advisable to let the tip protrude between 1/8 and 1/4 inches below the MDF board. Once you’ve achieved this, ensure you tighten the lever again.
    • Place the MDF board on a spacious worktable or a sawhorse for optimal support. The section you’re planning to cut should be slightly over the edge of the working surface.
    • Use sturdy clamps to secure the MDF plank in its place. With a pencil or a piece of woodworking tape, mark the section of the plank you intend to cut.
    • Before you proceed, validate the marked line using a measuring tape. You can further ensure its alignment with a level or an L-square.
    • Align the front of your circular saw with this line. Now, you’re all set to start slicing through the MDF plank.
    • When you start cutting, maintain a steady pace. Ensure the cutting speed is consistent, and the pressure is firm to prevent the saw from vibrating or kicking back during the process.
    • With a slow and steady approach, you’ll be able to cut MDF effectively using a circular saw. Remember, patience is the key to achieving smooth, straight cuts.


    When it comes to making intricate or curved cuts on MDF panels, a jigsaw stands as the perfect tool. To achieve optimal results, ensure your jigsaw is equipped with a bi-metal cutting blade.

    Jigsaw Cutting

    • Start by accurately inserting the blade into the device’s blade clamp mechanism. The ideal choice here is a narrow blade, packed with a high number of teeth.
    • While carrying out the saw blade installation, always remember to disconnect the device from its power source to ensure safety.
    • Once your jigsaw is ready, focus on preparing the MDF plank. Securely position the plank on your workbench with the section intended for cutting hanging slightly over the edge.
    • To keep the MDF plank steady during the cutting process, use heavy-duty clamps around its borders. Should you be planning to cut in the centre of the MDF plank, support each end with a sturdy table or a sawhorse.
    • Next, mark the intended cut on the plank using a pencil. For curved cuts, a drafting compass could be your best ally. Stencils might also be beneficial to get the perfect shape.
    • With the marked line in place, position the jigsaw’s shoe at the starting point of the mark. Before proceeding, ensure that the blade aligns well with the line you’ve marked.
    • Once everything is set, turn on the jigsaw. Commence the cutting process, proceeding with a slow, controlled motion. This approach ensures that your cuts are precise and the tool doesn’t get out of control. Remember, with a jigsaw, the key is to be gentle and patient.


    Learning the ins and outs of MDF cutting is a simple yet essential skill for any DIY enthusiast or professional woodworker.

    With the right tools and techniques, you can achieve precise cuts for your project. Remember, safety should always come first, so ensure you wear appropriate gear.

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