Hello there!
This is my spiral staircase model. With this you will get exactly:
-stair_geo.obj and stair_geo.fbx, along with a .blend (Blender) file and a .ma (Maya) file. -All the PBR textures to use as you please.
You will receive the file: Stair_model.rar, inside you will find the following folders:
MODEL: an obj and fbx file. Along with .ma (Maya 2018) and .blend (Blender 2.83) files. TEX: all the PBR textures png format. website_images: the images used on the website.
If you have any questions about it, just get in touch and I will answer.
Thank you for your time, Ricardo Abrantes.