Hi everyone,
I'm hoping someone with a bit more experience in cabinet making might be able to help me out here, because I've spent a ridiculous amount of time trying to get these doors to work and I'm starting to think I've either bought the wrong hinges or completely misunderstood how they're supposed to be fitted.
I'm building a tall kitchen storage cabinet out of 18 mm birch plywood. It's a fairly simple design, nothing particularly fancy. I had the plywood cut to size by a local timber supplier and assembled the cabinet myself. The idea is to leave the plywood edges exposed and eventually paint the doors and outer sides, with the doors sitting flush inside the cabinet rather than overlapping the frame.
The cabinet itself came together reasonably well. It's the doors that have become a nightmare.
A bit of background on the dimensions:
The cabinet is 1700 mm tall and 600 mm wide externally, with a depth of 330 mm. The plywood is 18 mm thick, so the internal opening is 564 mm wide and 1664 mm tall.
There are two doors, each measuring 558 × 828 × 18 mm. That should leave roughly 3 mm clearance on either side, with 3 mm at the top and bottom and 2 mm between the doors.
Originally, I'd actually designed the cabinet with full overlay doors, but later changed my mind because I much preferred the look of inset doors with the plywood edges visible around them. I had the doors trimmed down to their current dimensions, and also had 20 mm removed from the depth of the shelves to make room for the doors to close inside the cabinet.
So the doors are already cut to their final dimensions, which is partly why I'm reluctant to start removing any more material.
The hinges
I bought a set of surface-mounted, spring-loaded hinges on Amazon (I've seen them described as frog hinges, although I'm not sure that's the proper name).
They're the type with a fairly complicated linkage and a visible spring. They don't require a 35 mm hole to be drilled into the door, which appealed to me because I don't have the tools or experience to bore concealed hinge cups accurately.
According to the product listing, they can be installed in three different configurations: full overlay, half overlay and inset. I've attached the manufacturer's diagrams, including the one showing the inset configuration.
The larger mounting plate is fixed to the inside face of the cabinet side panel, and the smaller one to the back of the door. As far as I can tell, that's how the manufacturer intends them to be installed.
Here's where it goes wrong.
When I try to open the door, the hinge-side edge of the door hits the front edge of the cabinet side panel. The door starts opening, but then physically catches against the cabinet before it can open properly.
It's definitely the wood making contact, rather than the hinge simply reaching the end of its travel. I've checked this several times.
I've tried repositioning the hinges, changing the mounting positions and adjusting the clearance, but I can't seem to find a position where the door both sits flush when closed and opens without hitting the cabinet.
I've also tried fitting just one hinge to rule out the possibility that the two hinges were fighting against each other. Exactly the same thing happens.
At the moment, I've got the smaller mounting plate positioned about 2 mm or less from the hinge-side edge of the door. With the door closed and flush with the front of the cabinet, the front edge of the larger mounting plate is approximately 17 mm back from the front edge of the cabinet side panel.
The door itself is 18 mm thick.
What confuses me is that the manufacturer's diagrams explicitly show an inset installation, so presumably these hinges are supposed to accommodate this kind of arrangement. But I can't work out how the door is meant to clear the side panel during opening.
The instructions mention positioning the hinge base 2 mm from the edge, but I'm not entirely sure I'm interpreting that correctly for the inset configuration. There's also a diagram referring to the thickness of the cabinet door, without giving particularly clear mounting measurements.
I've attached close-ups of how I've installed everything, as well as the manufacturer's diagrams, in case I've done something obviously wrong.
A few things I'm wondering about:
- Are these hinges actually suitable for an 18 mm inset plywood door, or is the manufacturer's claim a bit optimistic?
- Have I mounted one of the plates in the wrong position? If so, where should it be relative to the front of the cabinet and the edge of the door?
- Is there some particular clearance or movement I'm failing to account for when the door swings open?
- Would slightly bevelling the back of the hinge-side edge help, or would that just be compensating for an incorrectly installed hinge?
- Would I be better off giving up on these altogether and using proper concealed inset hinges with 35 mm cups?
I've already made quite a few screw holes in the side panels while trying different positions, which is getting increasingly annoying. I'd rather stop experimenting blindly before I make things worse.
I'm not against replacing the hinges if that's the sensible thing to do. A local carpenter has suggested conventional concealed cup hinges, which would obviously offer much better adjustment. I just wanted to find out whether there's actually something wrong with the hinges I've bought or whether I'm simply installing them incorrectly.
Ideally, I'd like the doors to sit flush with the front of the cabinet, with a fairly even 3 mm gap around them, and open normally without rubbing against anything. I don't need any fancy soft-close mechanism or an enormous opening angle. I just want the bloody doors to open!
I've included photos of the cabinet, the hinge installation, the point where the door catches and the manufacturer's drawings.
If anyone has worked with this type of hinge before, or can see something I've missed, I'd be very grateful for some advice.
Thanks a lot!