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### size of paper

Posted: **July 21st, 2020, 11:28 pm**

by **semajrn**

If I know the size of the finished origami project needed, how do I decide the correct size of paper to use to create it? Example: I want to make a dress that is about 2" - 3" high and a coat to fit over it... what approximate size papers should I choose for these projects?

### Re: size of paper

Posted: **July 25th, 2020, 9:15 pm**

by **origami_8**

That totally depends on the model. Complex models will usually have a higher ratio from initial paper size to finished model than simple models. In some rare cases the designer will give you this ratio at the beginning of the diagrams (

example) but usually you have to find out by folding the model and measuring. There is no fixed ratio that works for every model.

### Re: size of paper

Posted: **July 26th, 2020, 1:14 pm**

by **Baltorigamist**

In most cases you'll need to measure the model size and divide that by the side length of the original square. This will get you the (model:paper) ratio (e.g., 0.38 or larger for a very efficient* model). Then divide the size you need by that ratio (3" / 0.38 = approx. 7.9"). So for a model that's .38 the size of the starting square, an 8" square would get you about a 3" model.

*Note that the (model:paper) ratio isn't the only way to measure efficiency. Most models have a ratio of between .25 and .35 of the starting square, with more complex models generally occupying the lower end of that spectrum.