How to grid a portrait

A landscape can survive a wandering horizon. A portrait cannot survive an eye that sits too high, a nose that runs too long, or a mouth that drifts sideways. This is what makes faces the hardest thing to draw accurately, and also why the grid method is so well suited to them.

The grid breaks an overwhelming face into small, honest squares, and a little knowledge of facial proportion tells you when a square looks wrong. Used together, they are a powerful safety net for getting a likeness. This guide covers both. If the technique itself is new to you, our guide on what the grid method is is a good place to start.

Why grid a face in particular

Our brains are wired to recognise faces, which is a gift and a curse for the portrait artist. It means a viewer instantly spots when something is off, even if they cannot say what. The eyes being a fraction too close together, or the space between nose and lip being slightly too tall, is enough to make a drawing feel like a stranger rather than the person you meant to draw.

The grid method fights this by removing your brain from the placement decision. Instead of drawing "an eye," you draw the exact shapes that appear inside a specific square. Your pattern recognition, the thing that wants to draw a generic symbol of an eye, gets bypassed, and accuracy improves dramatically.

Facial proportions worth knowing

The grid tells you where lines go, but proportion tells you when to trust the grid and when you have made a copying error. These classical guidelines, popularised for modern artists by Andrew Loomis, describe an idealised average face. Real people vary, which is exactly why you still work from the grid, but they are invaluable as a sanity check.

The eyes sit halfway down the head. This is the guideline beginners break most often. Measured from the very top of the skull to the bottom of the chin, the eyes fall at roughly the midpoint. Most people place them far too high because they forget how much skull sits above the hairline.

The face divides into thirds. From the hairline to the brow, the brow to the base of the nose, and the base of the nose to the bottom of the chin are roughly equal. This helps you place the nose and mouth once the eye line is set.

The face is about five eyes wide. There is roughly one eye width of space between the two eyes, and roughly one eye width from each eye to the edge of the face. Checking this stops the eyes drifting too close together, a very common error.

The corners of the mouth line up under the pupils, roughly. The width of the mouth usually falls within the inner edges of the eyes, and the bottom of the lower lip sits about halfway between the base of the nose and the chin.

Choosing a reference photo

A good portrait starts long before the first pencil line. The reference does half the work, so choose it carefully.

Look for clear light. A single, obvious light source gives you the shadow shapes that describe the structure of the face, which is why our guide on why value matters more than colour is worth reading before you begin. Flat, even lighting hides the very information you need to make a face look solid.

Watch out for lens distortion. Photos taken close up with a phone can enlarge the nose and shrink the ears, giving a slightly cartoonish look. A reference shot from a little further back tends to be kinder and more accurate.

Use a high resolution image. You will be studying small squares closely, so a sharp, detailed photo matters far more here than it does for a loose landscape.

Choosing a grid size for a portrait

Portraits reward a slightly finer grid than landscapes, because the important information is packed into a small area around the eyes, nose, and mouth. A grid that is too coarse leaves each feature crammed into a single square, which defeats the purpose.

A useful rule of thumb is to make sure at least one grid line passes through the eyes and another through the mouth. As a starting point, aim for the eye to span roughly one square, so an individual eye is never squeezed into a corner. If you are a beginner, do not be afraid to go finer; more squares means more checkpoints and fewer places for an error to hide.

Gridding a portrait, step by step

Reading each square like a shape, not a feature

This is the mental shift that makes gridding portraits work. Inside any given square you are not drawing "the corner of a lip." You are drawing a dark wedge that starts two thirds of the way down the left edge and curves towards the centre. Describe the square in terms of shapes, edges, and where lines touch the borders, and the likeness assembles itself.

Three questions help with every square. Where does each shape touch the edges of the square? What angle is it travelling at? Is it lighter or darker than its neighbour? Answer those and you are copying information, not guessing.

Portrait mistakes to avoid

Eyes placed too high. The most common portrait error by far. Remember the halfway rule and account for the full height of the skull above the hairline.

Symbol drawing. Drawing the eyelashes, iris, and lips you imagine rather than the ones in the photo. The grid only helps if you actually look at what is inside the square.

Outlining everything. Faces have very few hard outlines. Most edges are soft transitions of value. Hard black lines around every feature make a portrait look like a mask.

Pressing the grid in too hard. Heavy grid lines are hard to remove and can dent the paper, leaving ghost lines through the final shading. Keep them whisper light.

Forgetting the neck and shoulders. A floating head looks strange. Even a simple indication of the neck and shoulders grounds the portrait and sells the pose.

Final thoughts

Gridding a portrait is not about tracing your way to a likeness. It is about giving yourself a reliable framework so that your attention can go where it matters: the subtle shapes and values that make one face look like a specific human being. The grid handles placement, proportion keeps you honest, and you get to focus on seeing.

Once you have drawn a handful of portraits this way, you will find your unaided eye has quietly improved too. The grid teaches you what accurate placement feels like, and that lesson stays with you long after the pencil lines are erased. If it helps to see the whole process in action, our step by step account of how I drew this portrait with the grid method follows a single drawing from first shapes to finished piece.