I'm wanting to create a sliding shelf by essentially adding drawer slides on top of an existing shelf and a piece of wood on top of that:

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My question is... Are regular ball bearing slides bought from the DIY shop strong enough to be used in a flat manner like this?

They weight I will be supporting is approximately 12kg

I have seen some slides online that quote a supported capacity of 40kg, but I am aware this is meant to be supported vertically and not flat.

If this is not the best idea, would there be anything more suitable?

  • 1
    Do not think regular drawer slides would work well, the weight would be on top of them, instead of them holding from the side. Do think there are shelf slides made for what you want, but might hard to find. Might try bottom mount.
    – crip659
    Sep 3, 2022 at 12:58
  • 1
    Make an answer out of that, @AloysiusDefenestrate!
    – FreeMan
    Sep 3, 2022 at 13:17

1 Answer 1


You want “center mount” or “undermount” drawer slides. Ordinary ones probably won’t work.

For example: center mount slide.

(Not, strictly speaking, an endorsement of this item, though I don’t think I’ve ever been disappointed by a Lee Valley purchase.)

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