Even the finest wooden door wears out fast with the wrong lock and handle. A guide to choosing the right material, size, and style of door hardware.
Many wooden door orders spend plenty of time on design and wood type, but the lock and handle get picked at the last minute without much thought. The result is a handle that rusts within a year, or a lock that sticks in bathroom humidity — while the door itself is still in perfect shape.
Brass and stainless steel work well for most interior doors, but for an entrance door exposed to direct sun and rain, or a bathroom door with constant humidity, only high-grade stainless steel (not a thin plating over cheap metal) gives real durability. Thin-plated hardware looks identical to solid stainless at first, but after a few months moisture gets under the plating and starts rusting.
Before ordering a lock, measure the thickness of the door leaf and the backset (the distance from the lock's center to the door edge). Imported locks usually follow a standard European backset that doesn't match common Iranian wooden door dimensions; if you don't provide this measurement in advance, the carpenter has to alter the installation spot, which weakens the door's structure around the lock.
The lock and handle are the only part of a door touched by hand several times a day — cutting corners on these two pieces shows up before the wood itself ever does.
Every few months, lubricate the hinges and lock with a little silicone oil (not cooking oil or thick grease) to keep them from sticking. If the door, like a wooden bathroom door, is installed in a humid space, check the latch alignment after the door absorbs moisture and before wood door warping affects how the lock works.
The entrance door is the first thing a guest or passer-by notices; the right wood, panel thickness, weatherproofing, and lock decide how secure and durable it stays against sun and rain for years.
Door warping almost always comes from uneven moisture on the door's two faces, not from bad wood. Here is the real cause and the actual fix.
A wooden door can work in a bathroom, but not the same door built for a bedroom. The difference is in details that rarely come up when placing an order.