Measurements are approximate. Maybe an eighth off.
Height 33"
Width (base) 16"
Depth (base) 16"
Width from arm to arm 11.5"
Each wing is 25", so if the wings are on, about 52" width.
I don't have my wings attached anymore because the one on the left cracked at the peg, where it inserts in to body. They are too heavy and no doubt not enough support. One day, I just noticed the left one was lower than the other, crooked and after inspecting it, found the crack. I asked for a replacement and maker of statue agreed to give me one and when he received replacement was supposed to mail it to me but never did. This was a couple of years ago, so I doubt I am getting it
Hawkman is also bigger than 1/4. At least, bigger than SS PFs
If you can get a good deal for it (I think it was $750 US when first released) go for it.