There is no formal or tested/rated weight bearing for the LAX Series Wall-Mounted Desk. Each of the six snap-toggle anchors used to mount this piece to the wall are rated for 100 lbs of working weight load each.
Technically that should make the desk hold 600 lbs, and you would subtract the weight of the desk itself, which is roughly 60 lbs., giving you an overall weight load capacity of 540 lbs.
This all being said, while the toggle anchors may have said weight rating each, that's not to say that your drywall or the structure of the desk will be able to withstand the pull from 540 lbs being loaded onto the desk top, especially if this is happening suddenly without spreading out the weight, like dropping such a weight onto one portion of the desk in a concentrated area. It may not be able to withstand that kind of concentrated downward force, and neither may the drywall, which could disintegrate and pull out one or more of the anchors.
You should be comfortable leaning against the desk and using it for normal desk/work use, but do not tempt fate by sitting on the desk myself with all your weight, as we're not sure your drywall would take the pull. You also don't want to risk snapping it in any places along its structure.
Answered on 2/20/2014 by Karen G. from Smart Furniture