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Question on pullout shelves

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Forum topic by rhybeka posted 12-08-2014 04:28 PM 701 views 0 times favorited 17 replies Add to Favorites Watch
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rhybeka

2669 posts in 2583 days


12-08-2014 04:28 PM

Hi all!

I’m going to be embarking on my first ever Sketchup creation build from the ground and I’ve got a question. I’m in the process of designing a tall unit that will be holding electronics – mostly gaming systems and a receiver. I’d like to have them each on pull out drawer slides so the cords are easily accessible, etc.

My question is – usually when you install something like this should there be a fixed shelf installed below the slide out platform/partial drawer or no? I’ve seen both done which is why I’m scratching my head. I don’t think these will sag/bow much due to weight – the receiver will be doing on the bottom of the unit/shelf anyway so it will have a solid bottom beneath it.

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.


17 replies so far

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JAAune

1636 posts in 1778 days


#1 posted 12-08-2014 04:38 PM

No need for the fixed shelves below the pullouts. Just make sure the pullouts themselves and the hardware used to mount them can handle the weight. Modern electronics tend to be much lighter than older systems. I can’t see much likelihood of problems there if you use quality ball-bearing slides.

There is one reason I can think of that would make the fixed shelves useful. Sliding pullouts do not contribute to the stiffness of a cabinet structure like fixed shelves do.

Since the unit is tall, you’ll want something to keep it from wracking. Usually I’d recommend a single, fixed shelf somewhere close to the middle or a thicker back if it’s not being screwed to the wall.

-- See my work at http://remmertstudios.com and http://altaredesign.com

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boxcarmarty

13495 posts in 1821 days


#2 posted 12-08-2014 11:55 PM

Ok, so what is the question???

-- My mind is like lighting, one brilliant flash, then its gone.....

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rhybeka

2669 posts in 2583 days


#3 posted 12-09-2014 12:37 AM

Lol @marty – if I needed to figure wood in for fixed shelves below the pull outs silly! JA answered it though :) unless you’d like to commit your two cents, Marty??

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.

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DIYaholic

19172 posts in 2136 days


#4 posted 12-09-2014 12:59 AM

What’s this about Marty being committed???

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

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NoThanks

798 posts in 990 days


#5 posted 12-09-2014 01:14 AM

Depends on how many shelves you have but the guides should hold the sides together.
A back would be efficient or if no back,
maybe a backrail across the back in the middle would hold the sides together.
I like to cut out the back of my shelves for wires to run down, (Cut out whatever works for your equipment)
and it also allows more air flow for the equipment.

-- Because I'm gone, that's why!

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Rick

8287 posts in 2494 days


#6 posted 12-09-2014 03:54 AM

Unless there are no sides of any kind on your slide outs, why not use side mounted slides.

The ones below are Full Extension, Side Mount Slides from Lee Valley and will easily hold 75 Lbs. Priced Per Pair they’re a gift as far as I’m concerned.

They also have Side/Bottom attached Full Slide Outs which might be better for your use. They need less side space to install.

Would have been nice to know if there is going to be a back on it? How wide is it? How tall is it? What type of wood are you using?

If there is a back on it that eliminates any “Racking”. If no back 1 or 2 cross pieces at the “Thirds” point will eliminate that.

Has it been “Designed” yet? You feel that you need to use “Sketch Up” to do that?

-- Hope Everyone Is Doing Well! .... Best Regards: Rick

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NoThanks

798 posts in 990 days


#7 posted 12-09-2014 04:27 AM


Unless there are no sides of any kind on your slide outs, why not use side mounted slides.

- Rick

FWIW…You can screw the drawer member rail of the guide into a 3/4” shelf. The pull out shelves don’t have to have sides.

(I’m taking for granted that full extension side mounted guides are being used, could be wrong, it wasn’t stated)

-- Because I'm gone, that's why!

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Rick

8287 posts in 2494 days


#8 posted 12-09-2014 04:33 AM

These are the Standard “Blum Slides”, what I referred to earlier as “Side/Bottom Mount Slides”. They have a capacity of 75/100 Lb. load.

In the Plan, disregard the full height sides of the Drawer and the Top/Bottom pieces of the “Case”.

In your situation your interested in the “Side/Bottom? fastening method. All dimensions are shown on there.

Lee Valley also has at least 10 other types of slides.

Good Luck: Rick

-- Hope Everyone Is Doing Well! .... Best Regards: Rick

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NoThanks

798 posts in 990 days


#9 posted 12-09-2014 04:40 AM


These are the Standard “Blum Slides”, what I referred to earlier as “Side/Bottom Mount Slides”. They have a capacity of 75/100 Lb. load.

- Rick

Also a FWIW…These guides only have one rail that locks the roller in place, the other rail floats side to side and wouldn’t be able to hold the sides in place to keep the cabinet from spreading apart.

EDIT: You can see it in your picture above. Right side is captive, left side is for tolerance

-- Because I'm gone, that's why!

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rhybeka

2669 posts in 2583 days


#10 posted 12-09-2014 01:09 PM

Thanks for all of the info, Rick! There are still a few undecideds with this project but the details I have so far are that it’s going to be 20” x 20” x 6ft. yes, there will be a back. Still working on if I want a door or not (airflow vs dog hair) Type of wood is also still up in the air. I know I’ll be using maple for the face frame, but for the carcass I’m pondering using poplar or ash, or if I should just use ply since it seems the cost would be almost equivalent. So far I’m thinking pocket hole joinery but I could be talked into rabbets and dadoes (though I’m new to those as well). My other plan is to install a few 80mm case fans at the back of the unit to expel some of the warm air. Lifehackers did a tutorial on their site a bit ago that I have to see if I can dig up and read again. With trying to finish my microecon class, that’s about as far as I’ve gotten. the wood for this first unit is my christmas gift from my SO :D though I also need to take storage of it all into consideration. Sketchup just helps me to visualize it all :)

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.

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rhybeka

2669 posts in 2583 days


#11 posted 12-09-2014 05:23 PM

here’s a real basic mockup I did here at lunch in Paint. not sure if it’ll help but it’s a general gist of what I’ve got in my head.

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.

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Monte Pittman

21994 posts in 1799 days


#12 posted 12-09-2014 05:27 PM

You did better in paint than I can do in sketchup.

-- Mother Nature created it, I just assemble it.

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rhybeka

2669 posts in 2583 days


#13 posted 12-09-2014 07:23 PM

@Monte that’s why I paid big bucks for a degree in Interactive Media Design. I’m a whiz (supposedly) at photoshop, illustrator, etc. Paint is just a simpler version. Sketchup is still a foreign beast to me. It’s very cumbersome – especially with having to click or know shortcuts to switch modes. I’m still a real newb when using it – end up starting something over at least 5 or 6 times – but I learn more each time with more and more practice. :)

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.

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Richard

1898 posts in 2151 days


#14 posted 12-09-2014 07:29 PM


here s a real basic mockup I did here at lunch in Paint. not sure if it ll help but it s a general gist of what I ve got in my head.

- rhybeka


With it that tall I would put at least one fixed shelf in the center.

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NoThanks

798 posts in 990 days


#15 posted 12-09-2014 08:18 PM

Looks to me that the shelf holding the Xbox 360 would be fixed? If so, I think that’s all you need.

-- Because I'm gone, that's why!

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