Cover for profile 40x40/90x90mm, Polished

The Strofix cover for profile 40×40 / 90×90mm, Polished is an AISI 304 stainless-steel decorative base cover for a 40 × 40 mm square railing post. This version is 21 mm high — taller than the 17 mm version — with a 90 × 90 mm square plate and a square opening that fits the 40 × 40 mm post. It conceals the base plate, anchor bolts, and raw fixing beneath a clean, finished square. Polished (mirror) finish.

The taller 21 mm height gives extra clearance where the base hardware stands proud of the floor, while keeping the same 90 × 90 mm square footprint and the mirror-polished surface that matches polished posts and fittings. Like the other square covers, it matches the square post profile for clean alignment and suits the 80 × 80 and 85 × 85 mm square base plates.

Use cases:

• Concealing the base plate at a 40 × 40 mm square railing post with extra height clearance
• Polished-finish square post base matching polished posts and fittings
• Taller 21 mm cover where base hardware stands proud of the floor
• Cover suited to the 80 × 80 and 85 × 85 mm square base plates
• Stainless-steel polished decorative base cover for square railing posts

FAQ

How does this differ from the 17 mm polished version?

Both are 90 × 90 mm polished square covers for the 40 × 40 mm post. This version is 21 mm high, giving extra clearance where the base hardware stands proud of the floor; the other is 17 mm high.

What post does it fit?

A 40 × 40 mm square post tube. The square opening matches the square post profile.

What are the dimensions?

90 × 90 mm square, 21 mm high.

How does it install?

It slides over the post tube before or after installation and sits flat against the mounting surface.

What steel grade and finish are used?

AISI 304 stainless steel with a polished (mirror) finish.

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.