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Stairs

# Wrought-iron stair guardrail, compliant with the standard

Made-to-order wrought-iron stair guardrail, sized to the French NF P01-012 standard — height from the stair nosing, baluster spacing and fixing suited to your support.
   [Get a quote](https://garde-corps-fer-forge.fr/en/quote/)
NF P01-012 standard

## The rules that apply to a staircase

A stair guardrail follows the same principles as a balcony guardrail, with a different height reference: the stair nosing rather than the finished floor.

0.80m to 1m

Height from the stair nosing

≤ 11cm over the full height

Vertical spacing (balusters)

< 11cm

Horizontal spacing, anti-climb zone (0–45cm)

≤ 18cm

Horizontal spacing, above 45cm

Full detail on heights by context (stairs, balcony, terrace, window) and sources on our [standards and safety](https://garde-corps-fer-forge.fr/en/standards-and-safety/) page.

Fabrication

## Typical iron sections

Benchmarks observed from a manufacturer of scrolled-baluster guardrails for balconies and stairs — adjusted to the pattern and load required for your structure.

40 × 40 mm square

Posts

30 × 30 mm square

Bottom / intermediate rail

50 × 30 mm flat

Handrail

Curved solid bar (section per pattern)

Vertical balusters

Forging

## Straight or ornate balusters, hand-forged

Each post and baluster is forged piece by piece, not mass-moulded. Straight balusters forge faster than a scrollwork pattern — the choice between the two is mainly a style decision, both following the same height and spacing rules.

See our style gallery on the [homepage](https://garde-corps-fer-forge.fr/en/) to compare finishes.

Installation

## Fixing methods on a staircase
     Chemical anchoring
Resin anchor set into the stair stringer (stone, concrete, masonry) — the reference method on an existing solid support.
   Bolt-down baseplate
Baseplate bolted at the base of each post, set on the step or floor — removable, suited to an accessible structural support.
   Mechanical anchor
A faster alternative to chemical anchoring, with slight post-leveling adjustment after fitting.

Detail on installation methods and finishes on our [installation and finishes](https://garde-corps-fer-forge.fr/en/installation-and-finishes/) page.

Made to order

## Sized for your exact staircase

Run length, ceiling height, support material (stone, concrete, wood): every guardrail is sized for your exact staircase, not a standard configuration. Describe your project at the quote stage for a first estimate within 48h.

Frequently asked questions

## What we're asked most often
        What height should a stair guardrail be?
Between 0.80m and 1m measured from the stair nosing — some sources use a flat 0.90m depending on configuration. Confirmed against your staircase at the quote stage.
     What is the maximum baluster spacing?
11cm maximum over the full height for vertical balusters. For a horizontal rail, under 11cm within the first 45cm (anti-climb zone), up to 18cm above that.
     My staircase is old stone, is that a problem for fixing?
No, chemical anchoring is precisely the reference method on a stone or masonry stair stringer — assessed on site depending on the support's condition.
     Guardrail, handrail or new staircase: what fits my project?
A stair guardrail (this page) covers securing an opening along an existing or new staircase. If you only need a handrail added to an already-built staircase, see rampe-fer-forge.fr. If your project includes building the staircase itself, see escalier-fer-forge.fr.
     Is a store-bought kit enough?
Kits sold in hardware stores (often 60 to 120 € for 1 to 4 steps) cover a limited section, not a complete guardrail sized to the standard across your staircase's full length.

Contact

## Describe your staircase

Length, ceiling height, fixing support (stone, concrete, wood) — the workshop replies with a first estimate within 48h.