3dsmax 3d stairs model tutorial.

[1]-Start 3dsmax and choose "Spiral Stairs" with the following size as shown below

[2]-Create like this

[3]-Create box with the following size

[4]-Select the box and convert into the editable poly now make selection and apply the extrude polygons for the three time
With the good following amount as shown below

[3]-Your object should like this

[4]-Again select the polygons and apply the extrude polygons with the good following amount as shown below

[5]-Now select the vertex and now drag the vertexes like this

[6]-Select the polygons and apply the bevel polygons with the good following amount as shown below

[7]-Your object should like this

[8]-Select the these vertexes and drag the vertexes like this

[9]-Select the top polygons and apply the bevel polygons with the good following amount as shown below

[10]-Your object should like this

[11]-Create sphere and apply the turbo smooth modifier with the amount 3.0

[12]-Create two cylinders and apply the taper modifier with the good following amount as shown below

[13]-Your object should like this

[14]-This is my material palette and creates some thing material like that

[16]-Set the skylight like this with the following parameter

[18]-This is my final result are you looking it

sumber : http://www.tutorialized.com/