Recommendations:

• Sizes 15x15 cm or 20x20 cm: to fold simple or intermediate models or test folding sequences.
   
• Size 24x24 cm: my preference! It is an ideal size for most models. It is perfect for folding each day because it does not require a large table to spread and fold the sheet and it is large enough to fold complex models
   
• Size 35x35 cm: for exhibtitions or very complex models