Drawer Slides

[Jst83]

Here's my thought and a rough Picture

I want to find drawer slides that mount completely under the drawer without needing side walls to mount to. 14" deep closed only need to extend about 7"
It's for the A/C so it will need to hold about 50 lbs
I've found flat ball bearing slides that I could lay flat. Do you think they would hold the weight laid in that fashion.


Thanks,
Scott

[angib]

I've found flat ball bearing slides that I could lay flat. Do you think they would hold the weight laid in that fashion.

Not a chance - at least that's what I'd think.

If the slides were intended to be installed vertically (ie, their height would be maybe five times their width), then using them horizontally will probably cut the capacity by a factor of 10, or so. So if you found slides rated at 500-1000 lbs, they might be fine!

However, if you would never extend the slides more than halfway, like your sketch, then the slides might survive. But I think the only way to find out is to fit them and see if they collapse, which may not be the answer you were asking for. You would definitely want to fit a stop to limit the movement, as it's likely that extending the slides fully one time would wreck them.

Andrew

[Endo]

You may be able to use undermount slides like these:



Click Here

[halfdome, Danny]

Accuride makes a one piece heavy duty full extention drawer slide that I have used many times for bottom mount application in store fixtures. With what you are doing you could get away with using only one in the center and placing two wood runners (left & right) under your flat bottomed tray. Though it would be easier to align using two slides. You can also use a pair of these. Danny

[Miriam C.]

Accuride makes a one piece heavy duty full extention drawer slide that I have used many times for bottom mount application in store fixtures. With what you are doing you could get away with using only one in the center and placing two wood runners (left & right) under your flat bottomed tray. Though it would be easier to align using two slides. You can also use a pair of these. Danny

Let me jump in with a question. If the slides are sold in pairs, is the weight rating "per pair"?

Thanks

[chief5]

I tried to draw this on CAD but had no luck transferring it to this reply.

Mount 2 1x2s on the cabinet floor in line with the slide direction approx 12" apart.

Take your shelf and mount 2 1x2s to the bottom approx 10" apart.

Mount side mount drawer slides between the cabinet floor and shelf 1x2s and your have a slightly raised shelf (drawer) using side mount slides that require no side walls.


Lorn.

[Jst83]

But I think the only way to find out is to fit them and see if they collapse, which may not be the answer you were asking for. You would definitely want to fit a stop to limit the movement, as it's likely that extending the slides fully one time would wreck them.
Andrew

That's my usual approach to this, just try and see what happens. There would be a stop, the A/C could only go out so far until a seal around it met the wall then it would stop. No chance of it ever extending all the way.

You can also use a pair of these.

I looked at those but they take a side wall to mount the track to.

Let me jump in with a question. If the slides are sold in pairs, is the weight rating "per pair"?

A fine question. You know I'm not sure, any one else got the answer to this ?

Scott

[halfdome, Danny]

Accuride makes a one piece heavy duty full extention drawer slide that I have used many times for bottom mount application in store fixtures. With what you are doing you could get away with using only one in the center and placing two wood runners (left & right) under your flat bottomed tray. Though it would be easier to align using two slides. You can also use a pair of these. Danny

Let me jump in with a question. If the slides are sold in pairs, is the weight rating "per pair"?

Thanks

Why Knott, yes it's per pair. Accuride is my choice of drawer slides even though KV and others make good ones too. The Salice brand is my favorite cup hinge, cheaper and very nice. Danny

[Jst83]

Lorn, I think I'm following what your saying but I have to be carefull how high the shelf is because of the hole where it will go out. I did what I always do and made it a fairly snug fit.

[halfdome, Danny]

Scott, you said"I looked at those but they take a side wall to mount the track to". A lot of these slides have back wall mounting brackets included or as an add on. In residential face frame kitchen cabinets you don't necessarily make them to accept side mounted drawer slides as it's a lot of extra work. With the back wall brackets it makes things so simple. Just search around they are out there. Danny

[Jst83]

Scott, you said"I looked at those but they take a side wall to mount the track to". A lot of these slides have back wall mounting brackets included or as an add on. In residential face frame kitchen cabinets you don't necessarily make them to accept side mounted drawer slides as it's a lot of extra work. With the back wall brackets it makes things so simple. Just search around they are out there. Danny

Very good Thanks, I see the kits a little farther down the page

Scott

[halfdome, Danny]

I tried to draw this on CAD but had no luck transferring it to this reply.

Mount 2 1x2s on the cabinet floor in line with the slide direction approx 12" apart.

Take your shelf and mount 2 1x2s to the bottom approx 10" apart.

Mount side mount drawer slides between the cabinet floor and shelf 1x2s and your have a slightly raised shelf (drawer) using side mount slides that require no side walls.


Lorn.

This is what I was trying to explain in my first response but the runners should be very close in thickness to the thickness of the drawer slide or it won't work. Danny

[brian_bp]

The idea of using side-mounted slides on stub walls (1x2s were suggested) makes sense to me, and the same thing could be done with steel or aluminum angle stock.

Some slides are rated for either wall or "flat" use, with much lower weight ratings when flat. The Extra-Heavy-Duty Slides at Lee Valley are definitely rated for flat use in the catalog, and if you follow the "tech" link on the web page you get this set of ratings:
Flat Mount 150 lb/pair
Mobile Applications 300 lb/pair
Frequent Usage 400 lb/pair
Moderate Usage 500 lb/pair

These are obviously overkill, but applying the same load ratio to lighter but similar designs might be reasonable. Note those specs show that slides subject to mobile use take a beating, for which an allowance should be made.

[halfdome, Danny]

The idea of using side-mounted slides on stub walls (1x2s were suggested) makes sense to me, and the same thing could be done with steel or aluminum angle stock.

Some slides are rated for either wall or "flat" use, with much lower weight ratings when flat. The Extra-Heavy-Duty Slides at Lee Valley are definitely rated for flat use in the catalog, and if you follow the "tech" link on the web page you get this set of ratings:
Flat Mount 150 lb/pair
Mobile Applications 300 lb/pair
Frequent Usage 400 lb/pair
Moderate Usage 500 lb/pair

These are obviously overkill, but applying the same load ratio to lighter but similar designs might be reasonable. Note those specs show that slides subject to mobile use take a beating, for which an allowance should be made.

These are the slides that I was talking about that one could be used with side wood runners. They take a #10 screw vs a #4 or #6 screw like the others. I would shop elsewhere as Lee valley is very pricey, they are way over my budget. Danny

[Jst83]

Those look very similar to the ones I bought at HD this evening. Bought 14"
because they only need to extend about 7" I'm gonna play around with laying them flat and see what happens. I can always change. Lord knows I've redone and rebuilt a few things more than once on this project.

Scott