I'm buying this shelf and will need to cut the 24" length down to about 20". After searching these archives and the 'net, it seems I should make this cut with my angle grinder and a cut-off wheel. I'm planning to put some cardboard over the shelf pieces, then maybe a thin piece of wood, then clamp it down. I should add that there is a bracket and a separate shelf that fits onto the bracket.

I don't need a perfect cut since the cut edge of the shelf will be in a corner, but I'd prefer it look decent. Plus, from the look of this product, I will need the shelf and bracket to stay fairly straight so they can be joined.

Will I be able to get a neat cut? Or will it warp and bend?

Thank you very much.

ps- I need the shelf to be approx 4" wide. If anyone knows where I can buy a 20" one, that would be great, but I've looked to no avail.

Go to this link, then see "Gallery Ledge 4x24"

http://www.potterybarn.com/products/7170004/?utm_campaign=venpopîistryId=2604309&fromrgl=1&utm_source=web&utm_medium=wishpot

Here is a link that might be useful: Gallery_Shelf