Measurements

In the first step, I obtain the all relevant measurements of the H-015 droid. All of these are based on the images from the books “Star Wars: The Force Awakens Visual Dictionary” and “The art of Star Wars: The Force Awakens”. The comparison with the person is used to determine the absolute height of the droid.

The droid is one third of the size of the person. Assuming the person to be 70″, this gives a height of 23 1/4″ (without the antennas). The absolute height is then used to scale the relative vertical measurements from the next image, in order to obtain the absolute vertical sizes.

In the next image, the droid is shown approximately from an angle of 45 degrees. The horizontal measurements of the diagonal widths are divided by sqrt(2) to convert them into the lengths of the sides. The ratio of these lengths and the height (in this image) is then multiplied with the known height which provides the absolute widths, as indicated in the image.

The height (23 1/4″) and the width at the bottom (27 9/16″) are in agreement with the values that are mentioned by savagecreature in his Build log at rebeldroids.com.