Cast bases

Heavier bases for 40x40 mm and Ø42.4 mm railing posts. Ribbed cast bases, 8–9 mm thick, come raw for welding – the post passes through the plate. Socket bases, 5 mm and satin, hold the post in a formed socket and stay visible. 100x100 mm or Ø100 mm, AISI 304. Filter by post profile and finish.

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About cast and socket bases

These are the heavier bases for railing posts – thicker than the 4–6 mm weld-on plates, so they take a greater overturning moment.

They come in two kinds, and the difference is how the post is held:

  • Cast base – 8–9 mm thick with stiffening ribs, supplied raw. The post passes through the plate and is welded.
  • Socket base – 5 mm thick, satin-finished. The post sits in a socket formed from the plate, and the base stays visible.
BasePostPlateThicknessAnchor holesFinish
cast40x40 mm100x100 mm9 mm2 × Ø11 mmraw
castØ42.4 mmØ100 mm8 mm2 × Ø11 mmraw
socket40x40 mm100x100 mm5 mm4 × Ø12 mmsatin
socketØ42.4 mmØ100 mm5 mm3 × Ø9 mmsatin

Both post profiles are covered – Ø42.4 mm round tube and 40x40 mm square profile. All variants are AISI 304 and non-adjustable.

The choice depends on the post profile, whether the post will be welded, and whether the base stays visible.

How to choose a heavy base

1. Post profile: Ø42.4 mm or 40x40 mm

The opening is profiled for a specific post. Round Ø42.4 mm and 40x40 mm square each have their own variant.

Confirm the post size before ordering – these bases are not universal.

2. Cast or socket

Choose the cast base when the post will be welded. After welding, clean the seam and finish the whole part at once.

Choose the socket base when the base stays visible – it arrives satin-finished and saves finishing work on site.

3. When a heavy base is worth it

A standard 4 mm plate suits most residential balustrades.

Choose the heavier base for taller posts, public projects and high-traffic locations where people lean on the balustrade regularly.

4. Anchoring

Anchor type depends on the substrate – chemical or mechanical anchors for concrete, coach screws for timber.

Use stainless fixings with a stainless base so that galvanic corrosion does not start outdoors.

Count the holes before you order anchors: the cast bases have two, the socket bases three (Ø42.4 mm) or four (40x40 mm).

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