Can a railing be retrofitted to an existing staircase?

Question

Accepted Answer

A railing can be retrofitted to most existing staircases:

**Options:**
- **Posts on the tread edge:** Screwed directly to the tread
- **Posts on the side of the stringer:** Fixed to the existing stair stringer
- **Wall handrail:** If the staircase is only open on one side, a wall-mounted handrail is sufficient

**Prerequisites:**
- Sufficient load-bearing capacity of the treads or stringers for post fixings
- Enough space so the usable tread width is maintained

**Regulations to observe:**
- Railing height: at least **90 cm**
- Openings in the infill: maximum **12 cm** (child safety)
- Grippable handrail

**Recommendation:** Have the retrofit assessed and carried out by a specialist. HTS advises you on which railing solution is feasible for your existing staircase and carries out the installation if needed.