1. Measuring before finishes are complete
Tile, plaster or flooring thickness changes the final baluster height and base position. Measuring too early is the single most common cause of a railing that sits slightly wrong on installation day.
2. Skipping the grade/finish conversation
Assuming "stainless steel" is one uniform product leads to mismatched expectations on look and durability — see our grades guide and finish comparison.
3. Undersized base fixings
A baluster or post that's structurally fine but under-anchored at the base is a safety issue, not a cosmetic one — this is not a place to cut cost.
4. Ignoring drainage on outdoor installs
Water pooling around a base plate accelerates corrosion at exactly the weakest point of the installation. A small drainage gap or sealant detail at the base prevents this.
5. Mismatched fittings
Ordering fittings separately from the main railing material, without confirming finish match, is a common source of a "almost right" looking installation.
How to avoid all five
Work with a fabricator who measures on-site after finishes are set, asks about grade/finish explicitly, and supplies fittings alongside the main material — not a separate vendor for each.