How much weight can an adhesive bathroom fixing hold?

The stated load describes a straight pull on a clean, smooth, dry surface after the full cure time. Everything about real use differs from that, which is why halving the figure is a reasonable habit.

The three conditions that are always assumed

Smooth and non-porous. Adhesive pads bond to glazed tile and glass. Textured stone, unglazed tile, painted plaster and freshly siliconed surfaces give them far less to hold.

Clean and dry. Soap film is the usual reason a pad that held for a month lets go.

Fully cured. Manufacturers state a time before loading, often 24 hours. Loading it the same evening is the single commonest cause of failure in this family.

Why real loads are larger than they look

A wet bath towel is close to a kilo. A robe pulled downwards as somebody walks past applies a brief force several times its weight, at an angle the test never applied.

Where this site stops

It reports what each maker states and the surfaces they state it for. Which fixing suits your wall — and whether a screw is the right answer instead — is answered by the product’s own instructions and by what your wall is made of.

This does not replace the manufacturer's own instructions. Every dimension, thread size, flow rate, operating pressure, water seal depth and load figure on this page is reported from the manufacturer's own documentation, with its unit written as published, and named as such — none of it is measured here. A flow rate is reported with the pressure the manufacturer measured it at, and is never converted to another pressure, because no conversion exists. And the statement repeated rather than assumed: the 38 °C stop on a thermostatic mixer is a mechanical detent you can deliberately push past, not a scald-prevention device. What your installation needs is answered by the mixer's own instructions and by your national plumbing rules, and nothing here replaces them.