All these platforms attach to a ladder the same way: one end of the platform has hooks to go over a ladder rung, with pivoting stays on the other side that reach down to the rung below. The platforms stand out from the ladder, providing a larger flat surface for standing on.

We have some concerns about these platforms. If you stand too far “out” on the platform, your weight would tend to pull the ladder away from the wall. And if you’re on a platform and reach out to one side, the platform will be pushed to the opposite side – which will twist the ladder.

We tried to assess a Warthog Ladder Platform WHLP ($73) but this platform wouldn't fit either of our test ladders (or seven others we tried). We were also concerned about a "short" weld on the Warthog we had - so we did no further assessment.

Little Giant Work Platform 10104

• Price: $111
• Comment: Maximum load 133kg. Once the platform is attached, it can be slid in towards the wall – so you can climb past the platform and then use your foot to slide it back out into position. Raised tread gripped our shoes well. But (on our test ladders) the platform sloped slightly downwards.
• Our assessment: OK.
   

Gorilla Multi-purpose Platform & Tray Plat - 01

• Price: $75
• Comment: Maximum load 120kg. Raised tread gripped our shoes well. Can be turned upside down to provide a work tray – but this has two disadvantages: the “tabs” on the tray mean you can’t slide the platform/tray in and out (which makes it difficult to climb up the ladder); and once you’re in position you have to reach around the tray to access the wall. Heavier than the others.
• Our assessment: OK.