Slot-and-Catch Entry Key and Mail Ledge
One printed wall rail with a mail pocket on top, six pegs for keys in the middle and a lipped tray below for wallet and sunglasses, so everything you pick up on your way out lives in one place.
Slot-and-Catch Entry Key and Mail Ledge
One printed wall rail with a mail pocket on top, six pegs for keys in the middle and a lipped tray below for wallet and sunglasses, so everything you pick up on your way out lives in one place.
Date: 2026-11-11 Category: Household Modeling difficulty: Beginner Estimated print: ~11 h total · ~134 g PLA (estimate) Suggested price: $24–$44 printed · $4 digital file (estimate) Status: Concept
Description
This is a 200 mm wide wall rail for the hallway. The top 25 mm is a mail pocket, 14 mm deep and open at the ends, that holds envelopes, cards and a folded newspaper. Below it six pegs with ball ends carry keys, a dog lead or a bag. At the bottom a 40 mm deep tray with a 12 mm front lip holds a wallet, sunglasses and a phone.
The body is one constant cross-section, a profile extruded 200 mm along the wall. That makes it a good first CAD project, and it also means it can be printed standing on its end with no overhangs at all. Two countersunk screws hold it to the wall.
The pegs are separate small prints that press into holes in the back plate, so you can print them in a second colour or replace one that snaps.
Why it sells
Entryway key and mail organisers are a visible category on maker marketplaces. MakerWorld lists many wall-mounted key and mail shelves, for example an entryway organizer with a mirror, mail pocket, tray and three hooks, a key holder with a mail slot and lower hooks, a herringbone shelf with three key hooks, and an oval organizer whose licence blocks selling prints. CGTrader sells a similar envelope slot key and mail shelf. A vendor article from Hyper3D lists wall-mounted storage racks among popular 3D-printed items, though it gives no sales numbers and sells tools itself (Hyper3D). I found no download counts or sales ranks, so this is evidence of many similar listings, not of volume. The gap: most listings are tall, multi-part or need supports; this one prints as a single no-support extrusion and uses plain press-in pegs.
Who buys it
Renters and homeowners with a hallway, flat or dorm, and gift buyers for a housewarming. They shop on Etsy, MakerWorld and Printables, and at local craft markets.
Design overview
- The one feature that sets it apart: the whole body is a constant profile printed standing on its end, so there are no supports and no overhangs, and the layer lines run along the load direction.
- Mail pocket: 200 wide x 14 deep x 21 tall interior, open ends.
- Six press-in key pegs on a 28 mm pitch, ball ends 11 mm so key rings stay on.
- Bottom tray: 40 mm deep x 4 mm floor, 12 mm front lip.
- Two countersunk screw holes at 140 mm spacing; accepts any #8 screw with a wall anchor.
- Overall 200 x 110 x 45 mm when hung.
Dimensions
| Measurement | Value (mm) | Notes |
|---|---|---|
| Overall width (X) | 200 | along the wall |
| Overall depth (Y) | 45 | out from the wall (called Z in the CAD axes of the guide) |
| Overall height (Z) | 110 | up the wall (called Y in the CAD axes of the guide) |
| Back plate thickness | 5 | |
| Tray floor / lip | 4 / 4 | lip is 12 tall, Z 41 to 45 |
| Mail pocket interior | 14 x 21 | depth x height, Z 5 to 19 and Y 89 to 110 |
| Peg hole diameter | 8.2 | press fit for 8 mm tail |
| Peg pitch | 28 | X = 30 to 170, Y = 40 |
| Screw holes | 4.5 | countersink 9, at X=30 and 170, Y=72 |
| Peg overall length | 35.5 | flange face to ball tip is 27.5 |
Parts list
| Part | Qty | Material | Size X×Y×Z (mm) | Print orientation | Supports |
|---|---|---|---|---|---|
| Ledge body | 1 | PLA | 45×110×200 | Standing on one 200 mm end (X axis vertical) so the profile is printed as 2D layers; no overhangs | none |
| Key peg | 6 | PLA | 14×14×35.5 | Tail down on the bed, ball up | none |
Hardware and non-printed parts
Two #8 countersunk wall screws, 4 mm shank, 30 mm long, with matching wall anchors for plasterboard. Check what your wall is made of. Optional: a drop of cyanoacrylate on each peg tail.
Fits and tolerances
Peg tail (8.0 mm) in plate hole (8.2 mm): press fit, 0.1 mm per side, tightened with a drop of glue if the part is printed on a loose machine. No other mating parts.
Modeling guide
Origin: back-left-bottom corner of the plate in use orientation. +X along the wall to the right, +Y up the wall, +Z out from the wall. The profile lives in the YZ plane and extrudes along X. When printed, rotate so +X points up (the part stands on its X=0 face).
Ledge body
- Sketch on YZ: back plate rectangle Y 0 to 110, Z 0 to 5.
- Add tray floor rectangle Y 0 to 4, Z 5 to 45; lip rectangle Y 0 to 12, Z 41 to 45.
- Add pocket floor rectangle Y 85 to 89, Z 5 to 22; pocket front wall rectangle Y 85 to 110, Z 19 to 22.
- Extrude the whole profile 200 along +X.
- Cut six 8.2 mm holes through the plate at Y=40, X=30 to 170 in steps of 28.
- Cut two 4.5 mm holes at Y=72, X=30 and 170, with a 9 mm 90-degree countersink on the front face.
- Fillet front edges 1.0; back plate edges 0.5.
Key peg
- Revolve about Z: tail diameter 8 from 0 to 5.
- Flange diameter 14 from 5 to 8 with a 3 mm x 45 degree underside chamfer.
- Shank diameter 7 from 8 to 30.
- Sphere diameter 11 centred at Z=30.
Print settings
| Setting | Value |
|---|---|
| Material | PLA (PETG if the hall is warm or sunny) |
| Nozzle | 0.4 mm |
| Layer height | 0.2 mm |
| Walls / perimeters | 4 |
| Infill | 15% gyroid |
| Supports | None |
| Brim / adhesion | Brim 8 mm on the ledge (tall and narrow footprint) |
| Notes | Ledge body is 200 mm tall when standing, so it needs the full 220 mm printer height; if yours is shorter, split at X=100 and glue with a 2 mm dovetail (variant). Pegs print upright in one batch of six. |
Assembly
- Press one peg into each of the six holes from the front until the flange sits flat against the plate.
- Hold the ledge on the wall, mark through the two screw holes, drill and fit anchors.
- Fix with two #8 countersunk screws; do not overtighten.
Variants and upsells
Variants: 150 mm and 250 mm lengths (peg count scales); a two-colour version with contrasting pegs; a 3-peg 100 mm version for narrow halls; personalisation with a house number embossed on the lip. Bundle: ledge plus a matching 3-hook coat rail.
Selling and distribution
Etsy and MakerWorld. Price: material plus about 8.5 machine hours plus margin, $24 to $44 (estimate). Sell the print and the file. Because several competing files restrict commercial use, a clear commercial licence on the paid file is a selling point. Use a standard CC BY-NC licence on the free file.
Keywords: entryway organizer, key holder wall, mail holder, key and mail shelf, hallway organizer, wall key rack, 3d printed organizer, entryway shelf, housewarming gift, mail pocket, key hooks, wall tray.
Risks and IP notes
- Tall standing print can wobble. Mitigation: 8 mm brim and 40 mm/s outer walls; offer a split version.
- Pegs rely on a press fit in PLA. Mitigation: 0.1 mm per side, an optional glue drop.
- Saturated category. Mitigation: lead with print-without-supports and a clear commercial licence.
- Do not use a brand or a place name in listings; no logos or trademarks in the design.
Resource links
- Entryway Wall Organizer with Mirror (MakerWorld) — Mirror recess, mail pocket, tray and three hooks
- Modern Wall Key Holder & Mini Shelf (MakerWorld) — Upper mail slot with lower hooks
- Herringbone Wall Shelf & Key Holder (MakerWorld) — Shelf plus three key hooks
- Oval entryway organizer (MakerWorld) — Licence restricts selling prints, a gap for a commercial file
- Envelope slot key mail wall shelf (CGTrader) — A marketplace listing of the same product type
- 15 Best Selling 3D Printed Items on Etsy (Hyper3D) — Vendor article listing wall-mounted storage, with no sales figures
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