Knowledge base · Technical note
Climate-controlled vs drive-up unit hardware
Same operator, same tenants, two different physical environments. The hardware decision follows the building, not the brand standard.
The difference is exposure, not prestige
A climate-controlled unit sits behind a corridor door in conditioned air. A drive-up unit opens directly to weather, temperature swings and, at some sites, de-icing salt. That difference drives almost every hardware decision.
Corrosion exposure
| Location | Exposure | Material direction |
|---|---|---|
| Climate-controlled corridor | Low, stable | SS201 is normally sufficient |
| Interior, non-conditioned | Moderate, humidity swings | SS201 with a checked finish; assess in humid regions |
| Drive-up, inland | Weather, temperature cycling | SS304 recommended for exposed hardware |
| Drive-up, coastal or salted | High | SS304, and specify the finish as carefully as the grade |
Door types and locking points
Corridor units usually take a cam or mortise cylinder on a standard door. Drive-up units are more likely to have a hasp for a padlock, or a roll-up door needing a latch and hasp assembly. This matters for the key plan: a site with both will have both keyed and non-keyed units, and the manager-access rule has to account for that.
Key management across two unit types
If drive-up units take padlocks and corridor units take cylinders, decide whether both sit on the same key schedule. In most facilities they should — otherwise a manager needs two keys for one site, and the key plan stops being explainable.
A practical default
Specify per zone rather than per site:
- Corridor and office: SS201, cylinders on the master-key schedule
- Drive-up exposed: SS304, padlocks keyed to the same schedule
- Coastal or heavy salt: SS304 throughout exposed areas, with the finish confirmed against a test record
Tell us the site layout and we will recommend per zone rather than applying one specification to the whole property.
Confirm it on your own doors
Send a door photo, the cylinder size or the mounting dimensions. We confirm fit with a physical sample before you commit to a quantity.
What readers ask next
Two unit types on one site, and the decisions that follow.
Can one lock model cover both unit types?
Often yes, provided the door hardware is the same in both areas. Exposure is what differs, so the finish usually has to change before the model does. Send a door photo from each area and we will confirm which parts stay common and which do not.
Can both finishes ship in one batch?
Yes. A single order can carry both finishes, separated and labelled by area so the installation crew does not mix them. Give us the count per area and the packing list can be built that way.
Does splitting the site change the minimum order?
The minimum applies to the order rather than to each area, so one combined order is usually the simpler route than two small ones. Send the counts per area and we will confirm the position.