Beam stairs

Zigzag beam stair

Zig zag beam stair

Zigzag beams are located bottom of the steps or edges.

Two beam stair

Two beam stair

This stair has two beams and they are located at the bottom of steps.

One center beam stair

One center beam stair

This stair has one beam and it is located bottom of steps or in the middle.

Console stair

Console stair

This stair is without beams. Steps are attached on wall console