Poplar Long Plate Sprung Door Knob
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Our Poplar design is our take on the classic Victorian beehive knob.
We’ve streamlined things, giving it a flatter knob and, in this case, a low-profile, long backplate. It’ll work well in period properties with a contemporary edge, or by bringing a traditional touch to new builds.
The knob is sprung, which means you don’t need to rely on the latch’s spring for its movement. We’ve opted for a light spring, so it takes very little effort to turn.
There’s also no danger of it coming away in your hand – we’ve engineered the backplate and knob to be inseparable.
Bronze is our boldest finish, but it isn’t shiny or bright, so it has a subtle side to it too. It’s a deep matt brown colour that’s almost black in some lights.
- Made from solid brass
- 4mm backplate with screwless ‘front’ side
- Super smooth turn thanks to self-lubricating, high-tolerance bushings
- Longer handle neck for a comfortable grip
- Designed for use with a tubular latch or mortice lock
- Engineered to fit all standard door thicknesses
- When retrofitting, you’ll need to use our door handle installation tool
- Suitable for interior and exterior doors
- Sold in a pair
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We dispatch all orders quickly so you can expect delivery in days, not weeks.
We sell direct so we can put the needs of our customers first.
We craft our products in-house so we can strive for excellence without compromise.
We use sustainable materials and build products that last.

FAQs
We recommend using a professional to fit all Corston products. Electrical items must be installed by a qualified electrician.
If you opt for our unsprung handles, a strong latch will work best with our lever handles to prevent drooping. You can use a lighter latch with our knobs to ensure they're easy to turn.
They'll support 40kg per bracket.