Cover

The Strofix cover is an AISI 304 stainless-steel decorative base plate designed to conceal floor-mounting hardware at the base of 40 × 40 mm square railing posts. The cover plate measures 90 × 90 mm, with a 20 mm height and 1 mm wall thickness. Supplied in satin finish.

The cover slides over the 40 × 40 mm post and sits flat on the floor surface, hiding the anchors, bolts, and rough floor penetration beneath. The 90 × 90 mm plate provides a compact base footprint that conceals standard mounting hardware without extending far beyond the post profile. The 1 mm wall thickness and 20 mm height keep the cover low-profile and unobtrusive. This SKU is a single fixed configuration — there are no selectable finish, grade, or plate size options. AISI 304 stainless steel is suitable for standard interior and exterior installations.

The satin finish matches other Strofix satin-finished railing components, providing a uniform, low-maintenance appearance.

Use cases:

• Base finishing for 40 × 40 mm square railing posts on balconies and terraces
• Floor-mount concealment on staircase balustrade square posts
• Decorative base plates for glass railing spigot systems with square-profile clamps
• Commercial and residential railing post base covers
• Retrofit finishing for exposed railing post base fixings

FAQ:

What post size does this cover fit?

The cover fits 40 × 40 mm square posts and tubes. The central opening slides over the post profile. It is not suitable for round posts — see the round cover variants in the Strofix Covers range for Ø42.4 or Ø48.3 mm tubes.

What is the cover plate size?

The cover plate measures 90 × 90 mm (D) with a 20 mm height (H) and 1 mm wall thickness (t). These are all fixed for this SKU.

Are other finishes, grades, or plate sizes available?

No. This SKU is supplied in AISI 304 satin only, with a fixed 90 × 90 mm plate. For additional plate size options (85 × 85, 90 × 90, or 105 × 105 mm) with selectable finish, or for a larger 108 × 108 mm plate with AISI 316 availability, see the other Strofix cover products for 40 × 40 mm posts in the Covers category.

Is the cover purely decorative?

Yes. The cover is a cosmetic finishing component that conceals the mounting hardware at the post base. It does not provide structural support. The railing post is secured independently through its own base anchoring system.

Is this cover compatible with the Strofix 40 × 40 mm square tube?

Yes. The cover is designed to fit over the Strofix 40 × 40 × 2 mm square tube and the side-mount square spigot base (40 × 40 mm), covering the floor-level fixing area.

About Covers

A cover is a stainless-steel decorative plate that fits around the base of a railing post where it meets the floor, deck or fascia, concealing the anchor bolt, base plate and raw fixing beneath a clean, finished disc or square.

It slides over the post tube before or after installation and sits flat against the mounting surface, giving the post base a professional appearance.

Strofix supplies base covers in seven variants — round covers in Ø85, Ø95 and Ø105 mm diameters for Ø42.4 and Ø48.3 mm round pipe posts, and square covers in 85×85, 90×90, 105×105 and 108×108 mm for flat-sided posts — in AISI 304 or AISI 316 stainless steel with satin or polished finishes and heights of 18 or 20 mm.

The correct cover depends on post shape and diameter, the desired cover size and the required steel grade.