How To Stop My Wood Shelving Unit Wobbling

[Rosyherb5]

Bought a cheap shelving unit a couple of years ago for the garage we moved it while we sorted the garage out and now it has started to wobble, we have tightened all the screws and made sure the cross bars are tight, but still it wobbles.
Any ideas please.

[fender62]

i assume its a metal shelf? get some washers behind the screws, if its
a wooden shelf, id get a some roof battons behind it.

[The Builder]

If it's one that stands on the floor, Rosy, then fix a couple of these to the unit and to the walls (maybe one each side)...........

https://www.screwfix.com/p/corner-braces-zinc-plated-25-x-25-x-16-5mm-10-pack/11529

I usually do it with wardrobes as well. Makes everything solid :o)

[Rosyherb5]

sorry it is a free standing wooden shelf

[Canary42]

Can you put a back on it (even strong thick cardboard would help) ?

[Rosyherb5]

not really, it's a separation between an office and store the light is needed and we don't have the tools to do so

[gollob]

I am not very good at DIY and put shelves up but they were not level. I spoke to a friend who said go down the library and get a book on it. So I went down the library and asked the librarian "Do you have any books on shelves" and she said they all were

[johnk]

Are the shelves going out of square when they wobble or are they rocking on the stand and staying square?

[waterboatman]

Two right angle brackets, each end under each shelf will keep it steady. It's possible to get some that a of flat steel so are easily fitted and will do the job.

[Rosyherb5]

Johnk - seems just to slant over, i will try and put some corners on it, i think i have some brackets knocking about, wonder if they will work?

[Old_Geezer]

Screw some wooden cross struts onto the back to stop it trying to change shape. Triangles are more stable than rectangles.

[Rosyherb5]

Thanks OG - it has metal ones already, but maybe wood would be more sound

[Old_Geezer]

Sounds like the metal ones' screws might need tightening up.

[The Builder]

Rosy, could you put up a pic of the unit and the opening it's standing in?

Image sharing sites such as Tinypic, Imgur, Upl etc