Details
How to check the sizes for a replacement 12 inch uPVC letterbox:
With the letterbox still fitted to the door you can measure the inside sleeve size and compare it to this size: 250mm x 37mm with 275mm fixing centres.
The postal slot through your existing door letterbox can be slightly larger than these sizes - upto 290mm x 55mm max.
Replacement letterboxes on upvc, or composite doors, is straight forward in many respects as long as you are aware of the basics. The best way to check which size you need, or whether the chosen letterbox will fit, is to take the old one out first and measure the aperture that has been cut through the door. The principle behind a sleeved letterbox is that you can seal off the inside of the door from any kind of ingress, but importantly if you are going to replace the letterbox then you need to be aware of how large the sleeve can be to ensure it then fits through the door aperture. This video explains everything you need to know - How To Fit a uPVC Letterbox.
Fixing your 12 inch uPVC letterbox
Our 12 inch upvc letterboxes have two ports or lugs which accept a self tapped thread from a typical wood screw. Usually the aperture through the door is elongated at the end each side for the lugs to go through. This is known as the 'clamp method' and is the best form of fixing. If your existing letterbox is face fixed from each side with four screws then this is still achievable but will require a little bit of diy nouse! All you need to do is slice the plastic ports off the one side of the letterbox with a sharp chisel and then use the pre-moulded fixing positions in each corner. The moulded positions are handy as they make it easier to set a position for fixing but again they will require a little 'spot' through with a drill. If they are not required then you won't even know the markings are there!
Taking care of your letterbox
Like everything these days if you look after things they will last a long time and this 12 inch upvc letterbox is no exception. When it comes to the finish of the letter plates then all you need to remember is keep solvents and chemicals of any kind away from the surface. Just use a dry cloth to keep the letterplate clean.
Not suitable for coastal designated areas. Please contact for more details.
2nd Jan 2019: We are dispatching as normal following the Festive Season.
If you have received your tracking number via email from Hermes you can check the status here.
If you want to find a Hermes parcel shop use this link here.
* UK deliveries over 15kg in weight will be delivered by DPD.
** Does not include weekend or Bank Holiday delivery days.
 |  |  |
The following special offers are available to you when you buy the 12 inch Letterbox. The discount for the special offer will show in the cart if both the 12 inch Letterbox and the special offer product are added.
Customer Reviews 1 item(s)
Price Quality Value Review by Colon(Posted on 15/01/2017)All goodGood good
