Gatehouse W3 3 Black Gate Mounted Post Box

Gatehouse W3-3 Large Post Box For Gates & Fences Rear Access With Trim

Black
£132.99 GBP
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Gatehouse W3 3 Black Gate Mounted Post Box
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Gatehouse W3-3 Large Post Box For Gates & Fences Rear Access With Trim

DAREA204BLKTR
£132.99 GBP
Colour
Dimensions Features Description Delivery
Gallery & FAQs

Built on quality, service and real people.

100,000+
Products supplied
European
Manufacturers only
14 Years
Specialist experience
4.8/5
Average customer rating

Dimensions

Mail Chute Dimension:

  • Height: 110mm
  • Width: 375mm
  • Depth: 25mm

Mail box Dimensions:

  • Height: 400mm
  • Width: 375mm
  • Depth: 142mm
  • Dimensions of letter slot: 33mm x 340 mm
  • Front Fitting Trim Dimensions: 415mm x 150mm
  • Correspondence suitable: A4 and C4
  • Capacity: 20.7L
  • Weight: 3.7kg
Good to know

Frequently Asked Questions

At the moment, we only ship within the United Kingdom and do not offer delivery to the United States.

Yes. Each letterbox includes a secure cam lock with two keys. It's designed to protect your mail and parcels from theft.

It's made from galvanised steel with a durable powder-coated finish. Built to last for years, even in harsh UK weather.

Orders are dispatched within 1–2 working days. Standard UK delivery takes 3–5 working days. Express options are available at checkout.

Yes. We offer a 30-day return policy. If you're not happy, simply return it in its original condition for a full refund.

Yes, all our letterboxes come with a 2-year manufacturer's warranty covering defects in materials and workmanship.

Yes. Personalisation options are available during checkout. You can add your house number, name, or both in a choice of finishes.

Very little. Just wipe it down occasionally with a damp cloth to keep it looking fresh. The powder coating protects against rust and fading.

Product Description

The W3 is our best selling range of letterboxes. The W3-3 has a larger collection box than the W3-1 and W3-2. It is a wider letterbox and so has a higher capacity. This rear access letterbox is the perfect solution for mounting through your gate or fence. The trim provides a clean and finished look to any edge cut in a gate or fence. It’s designed to hold lots of mail, safely and securely. It comes with 2 keys.

Comes with both front and rear fitting trims.

The W3 range is thermally powder coated to protect against rust. It is available in 4 colours, black, white and dark grey. The dark grey powder coating finish has a smooth mat appearance. the black and white powder coating has a slightly textured gloss finish.

If you would like this letterbox, but with a deeper chute, you may like the W3-4 with Trim.

View our complete range of gate post boxes here,

or you can view more of our rear access post boxes here.

Gatehouse W3 3 Black Gate Mounted Post Box
  • Colours: Black, Dark Grey
  • Warranty: 2 years
  • Front and rear fitting trims
  • Material: Galvanised steel
  • Thermal powder coated for enhanced rust resistance
  • Lock: Secure cylinder lock (Euro-Locks-Lowe & Fletcher),
  • Keys: 2 supplied

Why Buy From Letterbox4you

Read more

Delivery & Returns

Everything you need to know about our shipping and returns policy

Free Shipping

Free standard shipping. Express delivery available at checkout.

Easy Returns

30-day return policy. Items must be unused and in original packaging.

Customer Support

Our team is available Monday to Friday, 9:30am-5pm GMT to help with any questions.
Shipping is calculated at checkout based on your address and order weight/size. Free UK mainland standard delivery typically takes 2–3 business days, with next-day options available for eligible orders. Heavy/bulky items may be shipped via pallet (kerbside delivery). Ireland orders are delivered with DPD (typically 3–5 business days). Tracking is provided once dispatched.Our current Dispatch and delivery terms can be viewed here

Get in Touch

Have questions about our letterboxes or need help choosing the perfect one for your home? We're here to help! Send us a message and we'll get back to you as soon as possible.

Please enter your full name
We'll respond to this email address
Include your phone number if you'd like us to call you
Tell us about your project or ask any questions

@letterbox4you_uk

🏆Providing Quality Letterbox & Parcel Box Solutions

⭐️Platinum Customer Service Award

👍Changing The World One Letter Flap At A Time

Exceptional

4.9
Based on 60 reviews
Feefo Platinum Trusted Service Award 2026

Showing the 30 most recent

  • Trusted Customer Confirmed by Feefo

    Fantastic letterbox, well made and I love that I was able to customise with property address and the aesthetic details & quality.

    I would buy from Letterbox4you again and I recommend to others

  • Jackie Merriman Confirmed by Feefo

    Product was as description.

    Response from Amy

    Thank you for your feedback! We’re glad the product matched the description and met your expectations.

    We hope that you enjoy using it as much as we do!

  • Gary Parker Confirmed by Feefo

    Good quality letterbox.

  • Ralph Robertson Confirmed by Feefo

    Well made

  • Todd Curtis Confirmed by Feefo

    Great product, well built and packaged brilliantly.

  • Mark Howling Confirmed by Feefo

    Excellent service, great product.

  • Simon Nevill-Gliddon Confirmed by Feefo

    Overall, I am very pleased although I was expecting a slightly wider flap for thicker post or small parcels although I understand that any larger may encourage theft.

  • Trusted Customer Confirmed by Feefo

    We bought a W3-3 large postbox in dark grey to be fitted on our new dark grey aluminium fence. Post box arrived very quickly, extremely well packaged. The post box is a quality, well made product and the dark grey colour is very on trend.
    Instructions look clear and all fixings were supplied.
    Haven’t fitted yet but I can’t see there will be any problems.
    I share a photo when fixed.

  • Trusted Customer Confirmed by Feefo

    Great letter box strong and looks great we like it a lot will definitely recommend this to friends and family

  • Stephen Confirmed by Feefo

    Except quality easy to fit

  • Trusted Customer Confirmed by Feefo

    Good product b reasonable price

  • Trusted Customer Confirmed by Feefo

    Easy to install and does the job well

  • Trusted Customer Confirmed by Feefo

    Good design. Surprisingly large. Can hold lots of post including magazines and weekly newspaper. Some small parcels also fit through the posting hole. Good fixings. Comes with two keys to open the back. Good colour and quality.

  • Paul Norman Confirmed by Feefo

    The letterbox came with little sharp pins in the opening slot, which would have damaged the mail going in. The problem was reported and a replacement was sent promptly

  • Mark Walters Confirmed by Feefo

    Well made letterbox will recommend.

  • David Steer Confirmed by Feefo

    Fits well and does the job

  • paul chambers Confirmed by Feefo

    Perfect colour black that I needed to blend in, easy to fit and access.

  • Harry Kay Confirmed by Feefo

    Does exactly what we need and importantly it is water proof so the mail stays dry!

  • Trusted Customer Confirmed by Feefo

    Not yet in use so can't comment but looks as if it will do the job

  • Trusted Customer Confirmed by Feefo

    Easy to fit. Stylish finish.

  • Carol Fairbank Confirmed by Feefo

    Very good service and the letterbox looks good and would highly recommend.

  • Trusted Customer Confirmed by Feefo

    Excellently made

    Response from Hannah

    Thank you for the 5 stars for the quality of our product! It's great that you're so happy with your letterbox! Kind regards,
    Hannah

  • Ian Smith Confirmed by Feefo

    Well finished product that is easy to install and does the job.

    Two areas of possible concern.

    1. Rain water drips from roof of box on to letters when opened. I will have to make/fit a rain deflector above the box or wipe the top before opening.

    2. The box material is very thin. Hopefully it will survive many years of damp weather.

    Response from Hannah

    It is really nice to hear that you found installation so easy!The lid of the W3-3 is sloped to try and help the rain run off but we appreciate your feedback and will take it on board.
    We pride ourselves on the high quality materials our letterboxes are made of. The letterbox is made from galvanized steel which will hopefully serve you well for years to come.
    Kind regards,
    Hannah

  • Matthew Tolley Confirmed by Feefo

    Good quality item. Well packaged and well made.

    Response from Kim

    Thank you for your comments, we are pleased we can offer quality items.
    Kind regards
    Kim

  • Trusted Customer Confirmed by Feefo

    Prompt delivery, good quality well designed product, fitting trim ideal.

    Response from Kim

    We are glad to be able to offer a fast delivery service and also accessories to finish off the letterboxes nicely. :)
    Kind regards
    Kim

  • Trusted Customer Confirmed by Feefo

    Good quality and well packaged.

    Response from Kim

    Thank you for your comments.
    Kind regards
    Kim

    Response from Kim

    Thank you for your positive feedback.
    Kind regards
    Kim

  • Justin Winter Confirmed by Feefo

    Good strong construction.

    Response from Kim

    Thank you for your positive comments.<div>Kind regards</div><div>Kim</div>

  • Trusted Customer Confirmed by Feefo

    Very well built, sturdy letter box.

    Response from Kim

    We are glad you like the quality of our letterboxes. <div>Kind regards</div><div>Kim</div>

  • Trusted Customer Confirmed by Feefo

    Just as described good and solid.

    Response from Kim

    Thank you for your positive feedback. <div>Kind regards</div><div>Kim</div>

  • Trusted Customer Confirmed by Feefo

    1 person found this helpful

    I purchased a Rear Access Letterbox with trim to fit in my 7ft solid gates, if I had thought about it or even rang letterbox4you, they would have advised me and I would have bought another trim for the inside of the gate. the Letterbox is strong, only opens from the front so mail keeps dry, safe from any one trying to remove mail and I bought it big enough for magazines, all in all just the job and would recommend to others.

    Response from Kim

    Thank you so much for your positive feedback.<div>Kind regards</div><div>Kim</div>

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