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Deadlock Barrel Projection and Escutcheon Fitment

Why correct barrel projection, angle and escutcheon fit are important.

★★★★★Rated 5.0 out of 5 from 365 Google reviews
Correct van deadlock barrel projection of approximately two millimetres

The finished position of the lock barrel and escutcheon affects appearance, usability and resistance to attack.

Deadlock barrel projection and escutcheon fitment

A correctly installed deadlock barrel should normally sit almost flush with the escutcheon or protrude just a few mm. The example below projects by approximately 2 mm and mostly comes straight out from the door, which is the neat appearance most van owners expect.

Correct van deadlock barrel projection of approximately two millimetres
Ideal projection. The barrel sits slightly proud of the escutcheon without excessive exposed length.

Barrels are commonly available in length increments of about 5 mm. If a barrel protrudes approximately 6 mm evenly on every side, replacing it with a barrel 5 mm shorter could reduce that projection to around 1 mm. A barrel should not be recessed behind the escutcheon; at minimum it should be flush.

Why some correctly fitted deadlock barrels sit at an angle

The external barrel does not always emerge square to the outside door skin. The lockcase must sit flat against the shaped edge of the door so the vehicle can close without the lockcase contacting the body. Because the barrel remains at 90 degrees to the lockcase, an angled door return can make the barrel appear angled from outside.

Angled external deadlock barrel on a Volkswagen Transporter
The outside view can initially look unusual: one side may project by around 2 mm while the opposite side projects considerably further.
Inside view showing the angled door return and deadlock lockcase
The inside view explains the geometry. The lockcase follows the door edge rather than the outside body panel.

Door shapes vary between van models and even between different doors on the same van. Sliding side-load doors often have the most pronounced angle. We manage expectations before fitting and show customers photographs of completed installations wherever possible. We would rather explain the appearance in advance than complete work that a customer will not be comfortable with afterwards.

What customers say

These extracts are from genuine five-star Google reviews.

★★★★★"Fitted lots of security features to my van in the same day and took lots of time to demonstrate and explain all about them too. Immaculate workmanship."
Roy Grassie · Google review, January 2016
★★★★★"Arrived on time to fit T series deadlocks. Installation very detailed, Matt clearly takes pride in his work."
Lance Chenery · Google review, February 2021
★★★★★"Matt was a particularly knowledgeable and thoughtful engineer and he worked brilliantly with his colleague in an efficient and diligent manner."
Kris West · Google review, July 2019

Review wording has been lightly shortened for display without changing its meaning. Full reviews remain available on the Sussex Installations Google Business Profile.

Common questions

What does correct deadlock barrel projection look like?

A correctly selected barrel sits almost flush with the escutcheon or protrudes only a few mm, rather than projecting excessively. Barrel lengths are usually at 5mm increments so a barrel that projects 6mm on all sides could be replaced with a barrel that is 5mm shorter; which would only project out 1mm.

Why do some correctly fitted deadlock barrels look angled from outside?

Because the lockcase sits flat against the shaped edge of the door rather than the outside body panel, and since the barrel stays at 90 degrees to the lockcase, an angled door return can make it appear angled from outside even though it has been fitted correctly, with an extremely angled door, one side of the barrel might show up to 10mm, while the other side may only project 1-2mm.

Why does Sussex Installations show pictures on its website of deadlock barrels fitted to different model vans?

Because door shapes vary between van models, and sliding side-load doors often have the most pronounced barrel angle, so we would rather explain the appearance in advance than complete work a customer will not be comfortable with afterwards.

Page details

Author
Jeff Scott
Publisher
Sussex Installation Team Ltd
Updated
2026-08-27
Primary focus
Product and installation lessons
Jeff Scott, founder of Sussex Installation Team Ltd
About the author

Jeff Scott — Van Security Specialist and Industry Educator

Jeff Scott is the founder of Sussex Installation Team Ltd (Sussex Installations). He has fitted vehicle-security systems since 1997, started Sussex Installations in 2003 and has specialised in van security since 2008. His work combines installation, vulnerability research, product design, UK manufacturing and long-term public education.

In 2009, Jeff published the first known YouTube video explaining mechanical key-operated van deadlocks. He has continued documenting van-security products, installation standards, vehicle vulnerabilities and changing attack methods ever since – earning his description as "The OG Van Security YouTuber."

Jeff has supported thousands of professional vehicle aftermarket technicians across the UK and beyond with access to technical information, while actively promoting higher quality installation standards through his trade community ifitstuff.com since 2006.

Videos supporting this story

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