In a small home, every shelf is precious, and it is tempting to fill all of them evenly. But your body does not treat every height the same. Ergonomics guides for workplaces describe an "ergonomic golden zone" between the waist and the shoulders: things you use every day belong there, because you can grab them without bending or stretching.
The same idea works in a studio flat. The mug you reach for ten times a week and the suitcase you pull down twice a year should not live at the same height. Putting each thing at the right level costs nothing, and it often frees up the best shelf space without buying a single new storage box. That fits the cosy rule on this site: rearrange first, buy later.
The golden zone (waist to shoulder) is for everyday things: mugs, plates, keys, the book on your bedside shelf. Reaching here is almost effortless.
The low zone (below your waist) is for heavy things. Lifting from low down keeps the load close to your body and your hands near the floor if it slips. Cast-iron pots, boxes of books and the vacuum cleaner are happy here. It is a poor home for something you use every day, because you bend for it every day.
The high zone (above your shoulders) is for light things you rarely need: spare bedding, off-season clothes, a box of party decorations. It is a bad place for anything heavy or breakable, because you lift it over your head, often while balancing on a stool.
Enter your height, then drag the three shelves up and down. The shaded bands show your zones. Each shelf has a job; the note underneath tells you whether the height suits it. The starting layout is deliberately a little wrong. Can you fix all three?
Shoulder and waist start as rough guesses from your height. Stand against a wall and mark the real heights with a pencil for better results.
Everybody's proportions differ, so the two guesses in the planner are only a starting point. For your real numbers, stand against a wall in socks and mark three heights with a pencil: the top of your head, the top of your shoulder and your waist (roughly where a belt sits). Measure from the floor to each mark with a tape. If you share the home with someone much taller or shorter, work to whoever uses the shelf most, or use the middle ground for shared things.
If you are looking at ceiling-height cupboards, also measure the ceiling height and the depth you can spare. Deep shelves above shoulder height hide things at the back that you will never find again.
Everyday things in the golden zone. In a small kitchen that means the plates, mugs and the two pans you actually use. In a hallway it means keys and the shoes you wear this week. If this zone is full of things you touch twice a year, that is the first swap to make.
Heavy things low. Put the heavy pot, the box of tinned food, the stack of books and the vacuum cleaner near the floor. Under-bed boxes work well for light, rarely used things; just check the clearance first, since beds vary a lot in how much room sits under them.
Rare and light things high. The top of a wardrobe or cupboard is the right home for spare bedding and off-season clothes. Use a stable step stool rather than a chair, and if you have to stretch past your head, the item is probably too heavy for that shelf.
Tall bookcases, wardrobes and shelving units can tip, especially if children or climbing pets are around or the top shelves are heavy. Fix them to the wall with the anchor that suits your wall type; renters can ask the landlord, or choose anchors that leave small, easy-to-fill holes. Never use the shelves themselves as a ladder.
The zones are a rule of thumb, not a law. If you are a wheelchair user, have a bad back or knees, or simply cannot reach above a certain height, move the whole band to match what is comfortable for you. A pull-out basket low down can turn the low zone into a daily-use zone, and a hook at the right height can beat any shelf. The best arrangement is the one you will actually keep up.
It costs nothing to try. Swap two things this evening, live with it for a week and see whether your hands go to the right place without thinking.