Check your letter's size and weight to find the right price. Make sure the service you use provides enough compensation cover.
Length: 35.3cm
Width: 25cm
Thickness up to and including: 2.5cm
Weight: 750g
It’s important to check the size and weight of what you’re sending to make sure you use the right service. If it’s too big or heavy for a service, it could get held up during processing and may not get where it needs to go.
Measure each side of your item to check its length, width and depth.
If you’re in branch, use one of our sizing guides to confirm its size.
Thickness up to and including: 2.5cm
For safety reasons, some items are prohibited from being sent through postal networks. Other items can be sent but with limits or restrictions. National and international regulations also govern the carriage of mail. Please check our guidance on what you can and can’t send in the post.
Includes compensation cover up to £20
Compensation for valuables, such as money and jewellery, is not available on this service. Use Special Delivery Guaranteed if you're sending valuable items
Check your letter's size and weight to find the right price. Make sure the service you use provides enough compensation cover.
Length: 24cm
Width: 16.5cm
Thickness up to and including: 0.5cm
Weight: 100g
It’s important to check the size and weight of what you’re sending to make sure you use the right service. If it’s too big or heavy for a service, it could get held up during processing and may not get where it needs to go.
Measure each side of your item to check its length, width and depth.
If you’re in branch, use one of our sizing guides to confirm its size.
Thickness up to and including: 0.5cm
For safety reasons, some items are prohibited from being sent through postal networks. Other items can be sent but with limits or restrictions. National and international regulations also govern the carriage of mail. Please check our guidance on what you can and can’t send in the post.
Includes compensation cover up to £20
Compensation for valuables, such as money and jewellery, is not available on this service. Use Special Delivery Guaranteed if you're sending valuable items
Check your parcel’s size and weight to find the right price. Make sure the service you use provides enough compensation cover.
Length: 61cm
Width: 46cm
Depth: 46cm
Weight: 20kg
It’s important to check the size and weight of what you’re sending to make sure you use the right service. If it’s too big or heavy for a service, it could get held up during processing and may not get where it needs to go.
Measure each side of your item to check its length, width and depth.
For safety reasons, some items are prohibited from being sent through postal networks. Other items can be sent but with limits or restrictions. National and international regulations also govern the carriage of mail. Please check our guidance on what you can and can’t send in the post.
Includes compensation cover up to £20
Compensation for valuables, such as money and jewellery, is not available on this service. Use Special Delivery Guaranteed if you're sending valuable items
Check your parcel’s size and weight to find the right price. Make sure the service you use provides enough compensation cover.
Length: 45cm
Width: 35cm
Depth: 16cm
Maximum weight: 2kg
It’s important to check the size and weight of what you’re sending to make sure you use the right service. If it’s too big or heavy for a service, it could get held up during processing and may not get where it needs to go.
Measure each side of your item to check its length, width and depth.
If you’re in branch, use one of our sizing guides to confirm its size.
For safety reasons, some items are prohibited from being sent through postal networks. Other items can be sent but with limits or restrictions. National and international regulations also govern the carriage of mail. Please check our guidance on what you can and can’t send in the post.
Includes compensation cover up to £20
Compensation for valuables, such as money and jewellery, is not available on this service. Use Special Delivery Guaranteed if you're sending valuable items
Ready to send? Find services that suit you in branches nearby with our branch finder
You can buy and send all Royal Mail Signed for items at any of the 11,500 Post Office branches nationwide. Find one near you with our branch finder.
Royal Mail Signed For items need to be posted in a Post Office branch, not a post box, to make sure that the parcel’s tracked from the point it’s dropped off. When you do, you’ll be given a Certificate of Posting. Keep it safe – you’ll need it if you want to claim compensation for loss or damage.
For safety reasons and to comply with national and international regulations, we restrict or prohibit certain items from our network. We may ask you about the contents of your parcel so we can make sure your items are safe to post. You’re responsible for making sure you’re not posting any restricted or prohibited items, so it’s best to make sure you know what’s allowed and what isn’t. You might be surprised to learn that items like batteries and perfumes are subject to some restrictions. View a full list of prohibited and restricted items.