Mobile home and RV interior doors are not built like house doors — they’re thin, light, and hung on hardware to match. The three leaf non-mortised hinge is that hardware: a surface-mount hinge with a third, centre leaf, made for those doors, and this is an 8-pack in black with screws included.
If this hinge looks familiar, it’s because we recommended it from our Prime-Line page: when a bi-fold repair turns out to be a mobile home door instead, this is the part. It holds a 4.5 average across 108 Amazon ratings.
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The short answer
Buy this 8-pack for thin mobile home and RV doors: the three-leaf design grips panels too thin for mortised hinges, everything surface-mounts, screws are included, rated 4.5 out of 5. Standard house door? Wrong part entirely — standard 3.5 inch hinges are below.
What you’re getting
Eight non-mortised hinges. The three-leaf layout is the giveaway: the centre leaf fixes to the door edge or frame while the outer leaves wrap the thin panel, spreading screws across material too thin to hold a mortised hinge — because there is no mortise. Everything surface-mounts.
That design exists because mobile home and RV doors are typically hollow and an inch or so thick. Standard 3.5 inch house hinges are oversized, over-heavy and need a mortise the door can’t take.
Specs
| Type | Three leaf, non-mortised (surface mount) |
| Finish | Black |
| Pack size | 8 hinges, screws included |
| Made for | Mobile home and RV interior doors |
The good and the not-so-good
- Made for the actual door: thin, hollow panels a mortised hinge would destroy.
- No mortise to cut — everything surface-mounts with the included screws.
- Eight hinges cover two to four doors, so a whole RV refit is one pack.
- The centre leaf spreads the fixing load across the thin panel.
Worth knowing before you buy
- Wrong hardware for standard house doors — sized and built for thin panels only.
- A small ratings base (108) — a niche part with a niche crowd.
Who they’re for — and who should skip them
Mobile home owners, RV renovators and anyone re-hanging thin interior doors where the original three-leaf hinge has bent or pulled out.
For standard house doors, this is the wrong part entirely — you want ordinary 3.5 inch hinges. For surface-mount problems on regular doors, the Prime-Line N 7025 below covers the bi-fold version of the no-mortise idea.
Fitting them
- Match the new hinge’s leaf layout to the old one’s screw pattern before removing anything.
- Swap one hinge at a time with the door supported.
- Use the included screws — thin door panels punish oversize screws by splitting.
- Check the door sits flush before moving to the next hinge.
Worth comparing
Prime-Line N 7025 — the house bi-fold version
The factory-pattern non-mortise hinge for wood bi-fold closet doors in houses — the part this set gets compared with, rated 4.4 out of 5. Full detail in our N 7025 review.
Goldenwarm non-mortise 6-pack — full-size doors, no mortise
Six 4 × 3 inch stainless non-mortise hinges in matte black, rated 4.5 out of 5 — the surface-mount route for standard-thickness doors and gates. See our Goldenwarm review.
Questions people ask
Why three leaves?
The centre leaf lets the hinge grip thin door panels from the edge while the outer leaves take the frame and door face — no mortise needed.
Are screws included?
Yes.
Can I use them on a normal house door?
They’re sized and built for thin mobile home and RV doors. House doors need standard hinges.
The bottom line
The right hinge is the one made for the door you actually have. For thin mobile home and RV doors, this is that hinge.
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