Why paint large in watercolor
Larger paintings let you use bigger gestures, work with more of your arm, and make a stronger impression on a wall. They also change how watercolor behaves. Washes cover more area, so they dry unevenly more easily, and mistakes can be harder to hide. Small studies are still valuable, and many artists use them to plan larger pieces.
How large can a watercolor painting be?
There is no fixed limit. A full sheet of watercolor paper is commonly about 22 by 30 inches (56 by 76 cm), and paper also comes in rolls that allow bigger work. Some artists work larger by joining sheets or mounting paper on panels. Practical limits come from your table or wall space, your brushes and how well you can control drying. A “large scale painting” is simply a term for a work that is large relative to normal sizes; there is no single official name.
Choosing paper for big paintings
Paper is the most important decision.
- Weight. Heavier paper buckles less. A weight of 300 lb (640 gsm) is often chosen for large work because it can stay flatter when wet, though it costs more. 140 lb (300 gsm) paper can work if you stretch it first.
- Cotton content. Paper made from cotton holds water well and tolerates scrubbing and lifting.
- Surface. Cold-press has a mild texture and is a common choice. Hot-press is smoother, and rough has a pronounced texture.
- Rolls and blocks. Rolls give you size freedom. Blocks are glued on the edges and limit the sheet size.
- Stretching. Lighter papers usually need to be stretched: soak, then tape or staple to a board and let dry flat before painting.
Test one sheet before committing to an expensive project. See the best watercolor paper, how to prepare and stretch watercolor paper and standard watercolor painting sizes.
Brushes and tools
- Large wash brushes. A big mop, a wide flat or a hake brush holds a lot of water and lets you cover large areas in one pass.
- A range of rounds. Keep medium and small rounds for detail and shape. See types of brushes for watercolor painting.
- Spray bottle or sponge for wetting paper evenly.
- Large mixing containers. You will need more paint mixed than you think, so use a deep palette, cups or jars.
- Support. A board that can sit flat or tilted, or an easel that allows the paper to angle slightly.
Mixing enough paint
Running out of a color halfway through a wash causes visible changes. Mix a generous amount before you start, and mix extra for the second pass. Tube paint is more practical than pans for big washes.
Plan before you paint
- Do a small study first. A quick version at a smaller size shows the composition and values.
- Sketch lightly. Use a soft pencil and avoid heavy lines. See how to draw for watercolor painting for light methods.
- Think in shapes. At large size, big shapes and strong value structure matter more than small details.
- Decide your order. Plan which areas will be wet-in-wet, which will be hard-edged, and what must remain white.
Controlling drying time
The biggest challenge of a large painting is that parts of a wash dry before you reach the edges.
- Work in sections that follow natural shapes, such as sky, hills or a building. Stop at edges that suit the scene.
- Tilt the board slightly so the pigment pools gently at the bottom edge, and keep a damp brush ready to pick it up.
- Wet the paper evenly before a wet-in-wet wash, and work fast and decisively.
- Adjust to conditions. A warm, dry room speeds drying. A humid space slows it.
- Be patient with layers. Let a layer dry fully before glazing over it, or it may turn muddy.
Skies are a good place to practice big washes; see how to paint clouds in watercolor, and for expanses of water see watercolor techniques for painting water.
Step back often
Up close, it is easy to overwork. Step back every few minutes and check the whole composition. A mirror or a photo on your phone can also reveal problems in values and balance.
Presenting and storing large paintings
Large works need space and protection. Store them flat with acid-free interleaving, or roll them carefully if the paper allows. Framing may require custom sizes, so consider this when choosing your dimensions. See how to mount a watercolor painting.
Frequently asked questions
How to do large scale watercolor painting?
Use heavy cotton paper, large brushes and plenty of mixed paint, plan with a small study, work in sections and control drying time.
What is the 70/30 rule in painting?
It is a composition guideline that suggests making one element dominate about 70 percent of the work and a secondary element about 30, to avoid equal competing areas. It is a loose rule of thumb, not a requirement.
What is a large scale painting called?
There is no specific official name. Terms such as “large-format” or “monumental” are sometimes used, and a very large painting may be called a mural when it is made on or for a wall.
How large can a watercolor painting be?
It depends on the paper and your workspace. Full sheets and rolls allow considerably larger work, and some artists join sheets.