Double Stringer Staircase Detail Dwg May 2026
A very specific request!
A double stringer staircase is a type of staircase that has two stringers (also known as string boards) that support the treads and risers. Here is some detailed content that you can use to create a Double Stringer Staircase detail in DWG (AutoCAD) format:
Staircase Components:
- Stringers: Two parallel stringers, typically made of steel or wood, that support the treads and risers. The stringers are usually 2-3 inches thick and 10-12 inches wide.
- Treads: Horizontal steps made of wood, steel, or concrete that are attached to the stringers. The treads are usually 1-2 inches thick and 12-18 inches wide.
- Risers: Vertical elements that connect the treads and provide support. The risers are usually 1-2 inches thick and 6-8 inches high.
- Newel Posts: Vertical posts that support the handrail and are located at the beginning and end of the staircase.
- Handrail: A horizontal or sloping rail that provides support and safety for users.
Double Stringer Staircase Detail:
Here is a detailed description of the staircase: double stringer staircase detail dwg
- Staircase Type: Double Stringer Staircase
- Stringer Material: Steel or Wood
- Stringer Size: 2-3 inches thick x 10-12 inches wide
- Tread Material: Wood, Steel, or Concrete
- Tread Size: 1-2 inches thick x 12-18 inches wide
- Riser Material: Wood, Steel, or Concrete
- Riser Size: 1-2 inches thick x 6-8 inches high
- Newel Post Material: Wood or Steel
- Newel Post Size: 2-4 inches thick x 6-8 inches wide
- Handrail Material: Wood or Steel
- Handrail Size: 2-4 inches diameter
Staircase Dimensions:
- Total Run: 120 inches (10 feet)
- Total Rise: 120 inches (10 feet)
- Number of Treads: 12-15
- Tread Depth: 12 inches
- Riser Height: 7 inches
- Staircase Width: 36-48 inches
Detail Drawings:
Here are some detail drawings that you can use to create a Double Stringer Staircase detail in DWG format:
- Stringer Detail:
- Section view of the stringer, showing its size and material
- Elevation view of the stringer, showing its location and connection to the treads and risers
- Tread and Riser Detail:
- Section view of the tread and riser, showing their sizes and materials
- Elevation view of the tread and riser, showing their connection to the stringers
- Newel Post Detail:
- Section view of the newel post, showing its size and material
- Elevation view of the newel post, showing its location and connection to the handrail
- Handrail Detail:
- Section view of the handrail, showing its size and material
- Elevation view of the handrail, showing its location and connection to the newel posts
DWG File Content:
The DWG file should contain the following:
- Layers: Create separate layers for the stringers, treads, risers, newel posts, and handrail
- Blocks: Create blocks for the stringer, tread, riser, newel post, and handrail details
- Dimensions: Add dimensions to the drawing to show the sizes and locations of the components
- Annotations: Add annotations to the drawing to describe the materials, sizes, and details of the components
Step 6 – Add hatches & annotations
- Steel stringers:
ANSI31 hatch at 45°, scale 1–2.
- Concrete stringers:
AR-CONC or ANSI32.
- Call out:
2 - 150x250x10mm C-channel stringers, 10mm thick chequer plate treads.
Step 5: Insert Connection Details
- Top detail (callout A): Zoom to 1:2 scale. Draw a ½" end plate welded to the stringer top, with two ¾" bolts through a beam web. Add welding symbol:
(1/4) field weld both sides.
- Bottom detail (callout B): Draw a ¼" base plate at 45° to the slope. Add 4 – ½" diameter epoxy anchors into concrete. Show the 1" grout bed below plate.
Feature: Double Stringer Staircase – Structural Detail
Type: Staircase Assembly – Steel or Reinforced Concrete
Usage: Interior/Exterior (specify as required)
Scale: 1:20 or 1:25 for detailing A very specific request
9. Checklist for a Complete Double Stringer Stair DWG
- [ ] Floor plans with stair location & direction arrow
- [ ] Longitudinal section through stringer (rise/run dimensioned)
- [ ] Cross-section through treads showing stringer profile
- [ ] Top & bottom connection details (bolted or welded)
- [ ] Landing support detail
- [ ] Handrail attachment detail
- [ ] Material specs (steel grade, concrete strength, weld size)
- [ ] Title block with scale, date, drawing number
- [ ] General notes (code reference, finish, slip resistance)