Home Accessibility 3D stairs spiral staircase in 3d spiral staircase in 3d Description Save spiral staircase; modeled in sketchup in 3d; made block; ready to be used in any model. Format SKP File size 559.18 KB DOWNLOAD DWG share your appreciation Related Posts Two-section staircase – 3d model Spiral staircase Half level staircase 3d planform 3d staircase modeling Oil tank ladder 3d folding ladder metal ramp Detail of some spiral stairs modeled in 3d metallic staircase metallic staircase Stairs max 3d spiral staircase metallic staircase 3d staircase mockup Electric stairs external staircase 3d circular staircase 3d staircase Stairs – ramp