Comparison
Access stairs vs. work platforms
A stair gets you to the work. A platform lets you do the work. Buying the wrong one is the most expensive mistake in this category, and it is usually made to save money.
| Access stair | Work platform | |
|---|---|---|
| What it is for | Getting a person from the floor to an entry point | Holding a person at height while they work |
| Time spent on it | Seconds. It is empty while the work happens | Minutes to hours, continuously occupied |
| Hands | At least one on the rail going up and down | Both hands on the task, feet on a deck |
| The critical dimension | Rise and run consistency, and landing height vs. sill | Deck height vs. the work, and deck size vs. the task |
| What guards the person | Handrails and stair rails on the flight | Guardrail system around the full working deck, with toeboards |
| Typical standards cited | OSHA 1910.23 (stairs), 1910.29 (rails) | OSHA 1910.28 / 1910.29, ANSI-ASC A14.7 for mobile stands |
| Cost | Lower | Higher — and the reason people buy the wrong one |
| Failure mode | Bought for platform work; technicians end up standing on treads | Bought bigger than the doorway or the storage bay, then parked |
Going through there
Seconds on the equipment. The money goes into rise consistency, handrails and the landing. Buy an access stair.
Working there
Minutes to hours, continuously occupied, hands busy. Buy a work platform.
The edge cases people get wrong
"It's only a two-minute job"
Duration is not the deciding factor, posture is. Two minutes of both-hands work at shoulder height off a stair tread is the same exposure as twenty. If the hands are busy, the feet need a deck.
"We'll just put a board across"
A plank spanning two stands is an unengineered work surface with no rated capacity, no guarding and no deflection limit. It is also the single most common thing we are called about, usually after something happened.
"The lift can do it"
Sometimes true, and we will say so. But a lift occupies a bay, needs an operator and a charged battery, and for a repeat job it is often slower than a stand that is already in position. Compare setup time, not purchase price.
"We need both"
Frequently correct. A stair to reach the deck level and a platform to work from is a normal, well-specified answer — and it is often cheaper than one oversized custom unit trying to do both.