Hi, Jay, and thanks for your recommendation. Here are some follow-up questions I have:
1.) For my own edification, can you explain why, in this case, screwing corner blocks would not offer anything over just gluing alone?
2.) If only gluing, does it matter which side gets the long grain of the corner block?
3.) Should I clamp these blocks in place after gluing? I'm not sure how to go about that if so. Again, I lack knowledge and experience, so I'd appreciate any "hand holding" you can offer.
4.) I know this isn't the highest quality of cabinetry ever, and I'm definitely not going for any restorative effort here, just want to be able to use what I have and not worry about them falling off the wall because they can't hold even twenty pounds of stuff. That said, is there something else you'd recommend that would stabilize this rear mounting rail better than corner blocks?
Thank you once again!
On them by the numbers...
1.) Gluing...when done well and properly...whether with a traditional adhesive or a modern structural adhesive are almost always going to be way stronger than the wood itself in dynamic loading scenario. "Hardware" typically is there only to hold it in place until an adhesive dries and sets. They add little to it overall strength and in this case would...most likely...weaken the grains structure of the small blocks by bisecting and wedging it apart.
This image shows screw ports for mounting such blocks...and...I've seen these split open quite often...
2.) Not really, but I'm not there and the best answer to this one would be..."I would have to see and touch it to give the best advice on it..."
3.) If you employ a structural adhesive like PL Premium (these met PE standards in architecture) or even something like Titebond III you should be able to just hold these in place with masking tape until the glue sets. Clamping of course would be idea, and there are ways to do that. A little searching on the web illustrated things like:
4.) If the cabinets are going to get any kind of heavy loads in them, considering the shape they are in...I would put brakets or legs under them to strengthen the entire assembly...and keep them from tearing loos from the wall.