I'm looking for advice on constructing full-height cabinets that stretch from wall to wall using 3/4" plywood. Normally, I build each unit separately and simply screw them together, but these cabinets are long, and I'd prefer to share some of the interior walls to minimize material use.
My main issue is figuring out how to attach the top, back, and bottom components of the cabinets without visible fasteners, especially since they're located very close to the ceiling, wall, and floor—making it hard to use pocket screws. I've thought about using pocket screws from behind but would then have to shift a 15-foot-long row of cabinets into position, which seems like a nightmare. I want to avoid damaging anything or causing unnecessary frustration.
Using Domino connectors is another option, but I'd like to save around $850 since this would involve using 10 shared walls. I currently don't own the connector kit, and the costs for that might negate the savings from using less plywood.
4 Answers
You could try assembling the cabinets face down on a platform at the right height. Once everything's built, you can flip the whole assembly onto its back edge and secure it to the wall. Just make sure the platform is adjusted so you can clear the ceiling when flipping!
You might be able to cut costs a bit by using thinner plywood for the sides you're doubling up on. Just a thought!
If the added labor is too much of a hassle, why not just build them the usual way and screw them together? A few extra sheets of plywood might be worth it for a simpler and sturdier installation.
I've been through a similar struggle. I decided to build my closet system, starting in the garage, and once I realized how big the cabinets were, I had to switch to building them in place in the house. I anchored two side panels to the walls with screws into studs, then wedged in the top and bottom pieces, hiding the screws with the next upright piece. I also left the backs off to make it easier, but be prepared for a lot of custom scribing and caulking! The painting has been an ordeal too—four coats in, and it's still not perfect!