As a beginner many get confused about stretching paper, what does it involve and why would you need to stretch paper?
Why Stretch Paper?
Stretching paper gives a perfectly flat surface on which to work and your paper won’t buckle when you use watercolour or other water-based media.
Paper is usually stretched for watercolour work but it is useful for any media as papers of less than 250gsm usually buckle. Paper doesn’t always buckle it depends on the amount of water you use and how much the paper has to absorb and the type of paper. It is always best to stretch paper to ensure a non-buckled perfectly flat surface.