---
title: "Shaft Wall Systems"
description: "Shaft wall systems in Orange County. Rated enclosures for elevator shafts, stairwells, and mechanical chases, installed from one side."
url: "https://hanenburg-drywall.vercel.app/services/specialty-drywall-systems/shaft-wall-systems"
section: "Services"
business: "Hanenburg Drywall"
location: "Irvine, California"
updated: "2026-09-25"
---

# Shaft Wall Systems

A shaft wall system is a fire rated assembly used to enclose elevator shafts, stairwells, and mechanical chases. It is designed to be installed entirely from one side, using liner panels set into specialised studs, because there is no access from within the shaft.

Shaft walls solve a specific construction problem: you need a rated enclosure around a vertical opening, and there is no way to work from inside it. The system uses one inch liner panels slid into slotted studs, so the entire assembly can be built from the corridor side.

They appear around elevator shafts, stair enclosures, and mechanical and plumbing chases in multi storey buildings. Because they are rated assemblies enclosing vertical openings, which are exactly the paths fire travels between floors, the detailing gets inspected closely and is worth building precisely.

## Why this matters

- Installed entirely from one side where no shaft access exists
- Built to the listed rated assembly detail
- Correct liner panel and stud system for the rating
- Documented for inspection and closeout

## Our Process

1. **Scope Walkthrough**: We walk the project, measure, review existing conditions, and confirm finish levels and textures room by room.
2. **Written Estimate**: A written scope with explicit inclusions and exclusions, finish level by area, materials, and a realistic schedule.
3. **Protection and Mobilization**: Floors, fixtures, and access routes protected, containment installed, and materials staged before work starts.
4. **Execute in Sequence**: Framing, board, finishing, and texture completed in sequence with quality checked at each stage rather than only at the end.
5. **Punch and Walkthrough**: Raking light inspection, punch list completion, full cleanup, and a walkthrough before the work is signed off.

## What's Included

- Assembly listing confirmation
- J stud and track layout
- Shaft liner panel installation
- Rated board layering on the accessible face
- Firestopping at penetrations and floor lines
- As built documentation

## Frequently Asked Questions

### Why are shaft walls built differently from other rated walls?

Because there is no access from inside the shaft. A standard rated wall is built and boarded from both sides. A shaft wall uses liner panels that slide into slotted studs from the accessible side, so the whole assembly can be completed without anyone ever needing to be inside the shaft.


---

**Hanenburg Drywall**
12 Elksford Ave, Irvine, CA 92604
Phone: (949) 446-1300
Email: info@hanenburgdrywall.com
Hours: Mon to Fri, 8:00am to 4:00pm

Serving all of Orange County with no travel surcharge.
Request a free written estimate: https://hanenburg-drywall.vercel.app/contact/request-estimate

*Last updated: 2026-09-25*