# US duplex receptacle wall plate: opening numbers

> What size is the opening in a US duplex receptacle wall plate?

- Category: Home & kitchen › Household
- Kind: Standard part
- Basis: Arrow Hart / Hubbell Wallplate Dimensional Information (J-2); the opening drawing could not be read, so numbers only
- Page: https://xemstudio.com/objects/wall-plate-duplex-us/ · JSON: https://xemstudio.com/api/geometry?object=wall-plate-duplex-us · Plain text: https://xemstudio.com/objects/wall-plate-duplex-us/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
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**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- The catalog prints three duplex opening numbers: 0.76 in (19.4 mm), 1.31 in (33.3 mm) and 2.65 in (67.4 mm). The text of the page does not say which number belongs to which part of the outline, so Xem publishes no file: guessing the outline would break the true-size rule.
- A retailer describes the opening as 1-1/8 in high by 1-11/32 in wide at the widest point of each half, with flat tops and bottoms. That differs from the catalog, so measure your own plate before designing a cover.
- Plate outlines, gang spacing and screw spacing are the same as on the toggle and Decora plate pages. Duplex plates use one centre screw into the receptacle.
- Plate thickness, edge radii and bevel are not published.

## Sizes

| parameter | value |
|---|---|
| opening numbers as printed | 0.76 in (19.4 mm), 1.31 in (33.3 mm), 2.65 in (67.4 mm) |
| outline, gang spacing | see the toggle plate page |
| device mounting-strap hole spacing, box ears | 3-9/32 in (83.3 mm) |

## Where the files are

- Arrow Hart / Hubbell Wiring (via Elliott Electric): [Wallplate Dimensional Information, catalog pages J-2 and J-3](https://www2.elliottelectric.com/Media/68-EWD-1045-1-Other) — web — Publisher's page; dimensions are facts
- Kyle Switch Plates: [Screw hole spacing on electrical wall plate covers](https://kyleswitchplates.com/screw-hole-spacing-on-electrical-wall-plate-covers) — web — Publisher's page; dimensions are facts

## Questions

**How wide is a duplex outlet plate opening?**

The catalog prints 2.65 in (67.4 mm) overall, 1.31 in (33.3 mm) and 0.76 in (19.4 mm) without saying which feature is which.

## Fits with

- [US toggle switch wall plate: outline, opening, screw holes (template)](https://xemstudio.com/objects/wall-plate-toggle-us/)
- [US Decora / GFCI rocker wall plate: outline, opening, screw holes (template)](https://xemstudio.com/objects/wall-plate-decora-us/)
- [US PVC device boxes (Carlon, Allied Moulded): size, cubic inches, device screw spacing](https://xemstudio.com/objects/device-boxes-us/)