Stair Stringer Calculator
Based on the search results and general knowledge about stair stringers, I’ve compiled a table with key information about stringers for stairs. This table covers the essential details you need to know when considering or working with stair stringers.
| Aspect | Details |
|---|---|
| Material | Typically 2×12 lumber (or larger) |
| Minimum Uncut Portion | 5 inches (127 mm) |
| Typical Number | 3 for a 36-inch wide staircase (one on each end and one in the middle) |
| Stringer Length | Tip-to-tip length of the cut stringer |
| Types | Closed (traditional), Open (sawtooth), Curved (for winding stairs) |
| Thickness | 32mm (1.26 inches) recommended to reduce squeaking |
| Width | 244mm (9.6 inches) standard |
| Available Lengths | 1.0m to 4.2m (3.3 ft to 13.8 ft) in various increments |
| Attachment Method | Mortised to take treads, treads screwed from outer side |
| Building Code Considerations | Must support required loads and maintain proper riser/tread dimensions |
| Placement | Typically placed slightly below the finished height of the upper landing |
| Special Features | Can be shaped for curved or winding staircases |
| Common Woods | Pine, Whitewood, Oak, Beech, Maple, Ash |
| Finish Options | Can be painted, varnished, or oiled |
Remember that specific requirements may vary based on local building codes and the particular design of your staircase. Always consult with a professional or local building authority when planning and constructing stairs to ensure compliance with regulations and safety standards.