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I'm planning on installing Ikea shelves mounted on wall brackets (using the Antonius system). Until recently there were Antonius shelves 14 3/8 inches deep, but now they've disappeared, leaving only 11 inches deep shelves. There is a 14 3/8 deep shelf (a Broder shelf), but to attached to the wall mount I need brackets. There are only brackets for 11 inch shelves. The shelves are planned to store dry food stuff mostly (cans, pasta, rice, potatoes, etc.), so it might be quite heavy.

What is the harm in using shorter brackets with a deeper shelf? The only things I can think of are a reduced carrying capacity for the bracket and since the out edge of the shelf is not supported, it might be break. But how realistic is that the 3 3/8 edge will break from a static load? The deeper shelf is wood (as opposed to particle board for the Antonius shelves).

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4 Answers 4

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A wooden shelf that is cantilevered 3 inches or so out from the end of a bracket will probably survive some load. But stack too much of a load on it (a pantry, canned food is heavy!) and even wood will crack. Particle board is very likely to fail of course as it has very little real strength.

A shorter bracket will often be designed for a smaller load. (Long brackets may be wider at the base, to support a larger load. They may be more robust to prevent buckling.) The issue is not just will it support the entire width of the board, but is the bracket adequate to support a greater load since a wide shelf will have more items stored on it. Those extra items stored are hanging a significant distance away from the wall.

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This all confirms my suspicion that it will probably be okay, but it would be better to look for a more adequate hanging system. I think this answers my question best. –  Eli Iser Sep 4 '12 at 13:27

If the shelf you're putting up is a solid wood shelf and not particle board, an 11" bracket will be fine (assuming it's a metal bracket). Certainly it's not ideal, but I don't know what you have for hardware stores in Israel. The grain of the wood will be perpendicular to the brackets, which would give you a chance to break the wood out at the end, but how much weight can you really put on the last 3 3/8"?

However, you have one big unanswered question. You haven't mentioned what you're attaching the brackets to. Are your walls drywall? If so, can you sink both brackets into studs behind the drywall? If you can, no worries about weight, if you can't hit then most anchor systems are going to be rated for 75-125 lbs(about 34-57 kilograms) for 5/8" drywall (1.5cm). If you put several anchors into the wall for each rail, you'll have plenty of weight bearing capability.

If your walls are a concrete block (like many student dormitories here in the U.S.) you'll be fine. Same with a wood finished wall (such as v-match pine). If you have some kind of paneling, you'll want to anchor directly to studs behind. Good luck!

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Walls in Israel are most often masonry, and that's the case for me - both walls I'm planning on using are concrete, so no worries about weight capacity. –  Eli Iser Sep 4 '12 at 5:35

The product you are looking for are brackets for what is called "standards". They come in many different sizes. Ikea likes to put fancy names on things so they can charge more. Just goto your local home improvement store/hardware store and tell the person there that you are looking for brackets to fit standards.

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This might be true in the US, but here the large home improvement stores are notoriously expensive. The idea behind using Ikea is to have everything in one place, but I'll look around, thanks. –  Eli Iser Sep 4 '12 at 5:38

Use the Broder brackets. They were designed for the Broder shelves.

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Hmm... it looks like Ikea Israel doesn't carry Broder wall uprights, and the Broder fittings are much more expensive than Antonius (although in the US they cost less...). From the pictures it is difficult to say if a Broder bracket will fit an Antonius wall upright... –  Eli Iser Sep 3 '12 at 11:07
    
If you are going in person, you can always try them out. I've mixed and matched uprights and brackets from Lowes before. I ended up using name brand uprights and generic brackets I believe, or vice versa. –  Zach Sep 17 '12 at 15:55

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