Courier vs Post Office: How Should You Send a Large Item?

By the Smart Taurus team · Updated 14 July 2026

Postal counters are brilliant for small parcels, but every carrier network has a ceiling on size and weight. Here's how to tell whether your item belongs in the post or with a courier.

In short: Use the postal network for items that are small, sturdy, boxed and not urgent — that is what Royal Mail and Parcelforce are optimised for, within the size and weight limits published on their websites. Once an item is oversized, heavy, fragile or impossible to box — a sofa, a television, a dining table — a courier becomes the practical route. Smart Taurus is a delivery marketplace where you post the item free, verified couriers send competing quotes, and you book, track and pay in the app.

Can you send large items through the Post Office?

Only up to a point. Every postal and parcel network operates strict maximum dimensions and weights per parcel — Royal Mail's ceilings are lower, Parcelforce Worldwide (Royal Mail Group's express parcel carrier) accepts larger and heavier boxes — and those limits change over time, so always check the current figures on each carrier's website before you pack. The deeper constraint is the model itself: network parcels travel through automated hubs on conveyors, stacked in cages with thousands of others. That system is fast and cheap for a shoebox; it is simply not designed for a mirror, a mattress or anything the sorting machinery cannot handle.

When is the postal network the right choice?

The post wins when your item ticks all four boxes:

Small — comfortably inside the carrier's published dimension limits
Boxed — protected in a rigid carton that survives conveyor handling
Robust — books, clothing, sealed goods; nothing that shatters
Non-urgent or standard-speed — you're happy with the network's timescales and drop-off/collection options

For that profile, network pricing is very hard to beat, and compensation cover for loss is built in at declared-value tiers. If your parcel is borderline — big but still within limits — our guide to the cheapest way to send a large parcel compares the options in detail.

When do you need a courier instead?

A courier takes over where the network's limits and handling model stop. Book one when any of the following is true:

The item exceeds the carrier's current size or weight ceiling
It cannot be boxed — furniture, framed art, appliances, garden equipment
It is fragile or high-value and needs hand-loading rather than conveyor sorting
It needs two people to lift, or delivery to a specific room rather than the kerb
You bought it on eBay or Facebook Marketplace and it needs collecting from a private seller — our eBay delivery service exists for exactly this

On a marketplace like Smart Taurus, the courier quoting for your job sees photos and dimensions first, arrives with a van sized for the item, and the same person who collects it delivers it — no hubs, no re-handling.

Post Office network vs courier: side by side

Factor	Postal network	Marketplace courier
Size/weight	Fixed published limits — check current figures	Anything that fits a van or Luton
Packaging	Rigid box required	Unboxed items fine — blanketed and strapped
Handling	Automated hubs, multiple touches	One driver, door to door
Two-person lift	Not offered	Available — request it when posting the job
Pricing	Fixed tariff by size band	Competing quotes for your specific item and route
Sweet spot	Small, boxed, robust parcels	Oversized, fragile or unboxed items

What about fragile items that could technically be posted?

Fitting within the limits doesn't always make the network the right call. Carriers exclude or restrict compensation on many fragile categories — glass, ceramics and screens commonly appear on prohibited or no-compensation lists — so a televisions-worth of risk can ride on small print. A courier who hand-loads the item, wraps it in blankets and straps it upright removes the conveyor journey entirely. For TVs, artwork and glass furniture, that difference in handling usually matters more than the difference in price; see our advice on how to ship large items safely.

How do the costs compare?

For anything genuinely postable, the network is almost always cheapest — its economics come from millions of parcels sharing the same lorries. Courier pricing depends on different variables: distance, item size and weight, access at both ends, timing flexibility and whether a second crew member is needed. The way to keep a courier price down is competition plus flexibility: post the job free on Smart Taurus with honest photos and dimensions, allow a window of days rather than a fixed slot, and let quotes come in from verified couriers — many of whom are pricing your item into spare space on a route they were driving anyway.

How does sending a large item on Smart Taurus work?

Post your job free — describe the item with measurements, weight if known, photos and both postcodes, plus any stairs or access notes.
Receive quotes from verified couriers — compare prices alongside each transporter's profile and reviews.
Book, track and pay in the app — follow the delivery in real time and pay securely through Stripe when you book.

Rule of thumb: if it fits in a carton you can carry alone, price the postal network first. If it needs a van, a blanket or a second pair of hands, go straight to courier quotes.

Frequently asked questions

What is the biggest parcel you can send through the Post Office?

Limits differ by service and change over time, so check the current maximum dimensions and weights on the Royal Mail and Parcelforce websites before packing. Anything over those ceilings — or anything that can't go in a rigid box — needs a courier instead.

Is Parcelforce the same as the Post Office?

Parcelforce Worldwide is Royal Mail Group's express parcel carrier, and you can send Parcelforce parcels via Post Office branches. It accepts larger, heavier parcels than standard Royal Mail services, but it is still a hub-and-network carrier with published limits and packaging requirements.

Can I post a TV?

Screens are risky in any parcel network: they frequently appear on carriers' restricted or no-compensation lists, and conveyor handling is unforgiving. A courier who transports the TV upright, blanket-wrapped and hand-loaded is the safer route — post it on Smart Taurus with the screen size and both postcodes for quotes.

Do couriers collect from my home?

Yes — door-to-door collection and delivery is the standard model for marketplace couriers, including collection from a shop, auction house or private seller's address if you're having a purchase delivered.

What's the cheapest way to send something heavy but small?

If it's within carrier weight limits and survives rough handling, a network service booked online is usually cheapest. If it's over the limits or fragile, competing courier quotes are the way to find the real market price — flexibility on dates typically brings the cost down.

Can a courier bring an item inside rather than leave it at the door?

Yes, if you ask when posting the job. Specify the room, the floor and whether there's a lift, and request two crew for heavy pieces — quotes will then reflect exactly the service you need, with no dispute on the day.