Have you looked under the kitchen sink lately? If the shelf under there looks like what I was working on today, You might want to take some Dramamine.
I'm talking wet, moldy, deteriorating, rotten wood, that smells funny. It's not a major construction project to tear out this ugly beast and put in a shiny new shelf. But it does take a level of determination...and some pressure treated lumber! A squirt bottle of germicidal bleach will help to kill off the nasty ugly green and black mold.
You'll have to build a new frame for the shelf to sit on. That's where the pressure treated lumber comes in - you don't want just any old lumber sitting on a concrete slab, which is what you will probably find down there.
Once the frame is in, use some plywood of appropriate thickness on top of the frame as the new shelf. You may have to divide the shelf into 2 or more pieces to get it under and around the plumbing under there. Your framework should accommodate the multiple pieces by supporting them both at the seam.
Once you've got the plywood cut to proper size, and fitted under the sink on top of your frame, drive screws (or use a nail gun) through the plywood and into the frame to secure the shelf in place.
To make it all look nice, use vinyl flooring or peel and stick vinyl floor tiles on top of the plywood. The top of the plywood should be sealed with an appropriate primer and allowed to dry before sticking tiles to it. Use an appropriate adhesive if using vinyl flooring off of a large roll.
I do this kind of thing for a living - small repairs of this nature. And believe me, it is nasty dealing with seriously deteriorated Frankenstein lumber. The dimensions to cut everything can be a bit tricky, too. But with a little patience, the right tools, a modicum of dexterity working with crazy fractions...and maybe a few band aids, YOU can do this job yourself.
Happy people just call the handyman. You can find me at https://sites.google.com/site/handymanvance/
BTW Did I mention painting yet in this blog? Did I mention Santa Clarita? Did I mention my favorite painting contractor west of the Rockies? That would be Executive Painting and Texture. And you can find me there, too, at http://www.executivepainting.net/
Go USA! in Vancouver!
