Stair Tutorial

Here is an overview of stair design and how to model different types of stairs in 3DHA and other simple design programs.

A drawing of a wooden stair seen from the side, climbing in two sections with a landing between them, with a handrail and balusters along the open side. Labels point to the landing at the top of the lower section, a riser, the riser height measured between two treads, the best tread width, a tread, the rise angle of the upper section, and the two sections themselves.
The drawing marks the tread, riser, riser height, best tread, rise angle, landing and sections

Also see these scaled stair plans that can be pasted into your own plans.

Where to go from here