S4u Stair Crack Top -

While the S4U stair crack top is usually just an aesthetic drywall/wood joint failure, always inspect the underside of the stringer. If the crack is accompanied by a vertical split in the wood itself (not just the paint line), or if the stairs feel "bouncy," call a structural engineer. That is a load path issue, not a trim issue.

Use the S4U Stair toolbar to create your staircase. Input your parameters: s4u stair crack top

While the specific "Crack Top" button might be labeled differently in various versions (sometimes nested inside Right-click > S4U Stair > Edit > Close Top), the function exists specifically to handle the intersection. While the S4U stair crack top is usually

The Manual Fix using S4U Logic: Many professionals use the "S4U Intersect Faces" or the "Stair Head Trimmer" to achieve the Crack Top effect. Here is the manual method using S4U's suite: Use the S4U Stair toolbar to create your staircase