The price of a large item is frequently not the cost of having it in your home and working. Several charges arrive later and are easy to miss at the point of comparison.

The delivery tiers

Which differ enormously and are frequently not made clear.

Kerbside delivery, where the item is left outside. For anything heavy this is a genuine problem, and it is the default on many low-cost delivery options.

Threshold delivery, to the first room inside the door.

Room of choice, where it is carried to where it will be used.

And full service, including unpacking, assembly, positioning, connection and packaging removal.

The price difference between the cheapest and the most complete is substantial, and comparing retailers on product price alone ignores it entirely.

The access questions

Which cause failed deliveries and additional charges.

Whether the item fits through doors, up stairs and around corners, which is the buyer's responsibility to establish in most terms.

Whether there is parking for a large vehicle.

Lift dimensions in apartment buildings.

And restrictions on delivery hours in some buildings.

A failed delivery for access reasons is generally chargeable, and rescheduling adds delay.

Measuring the route rather than the room is the step people skip, and it is where the failures happen.

Removal and disposal

Charges that arrive as an option and are frequently necessary.

Removing an old appliance is generally a separate paid service, and it is not always available.

Disposal of certain items is regulated — appliances containing refrigerants, mattresses in some jurisdictions, electrical items generally — which means it cannot simply be put out with waste.

Producer responsibility schemes in many jurisdictions oblige retailers to take back an equivalent old item when delivering a new one, sometimes free, and this is frequently not advertised.

Asking specifically is worthwhile since the obligation may exist.

Installation and connection

Where the requirement is sometimes legal rather than optional.

Gas appliances generally require installation by a registered person, and doing otherwise may be unlawful and will affect insurance.

Electrical work beyond plugging in may require a qualified electrician depending on the jurisdiction and the work.

Plumbing connections for washing machines and dishwashers are straightforward and are frequently done badly, and leaks are a common insurance claim.

Which means the installation charge is not always an upsell, and establishing what is required before ordering avoids discovering it on delivery day.

Assembly

The cost people underestimate in time rather than money.

Flat-pack furniture assembly time varies enormously, and the published estimates are optimistic.

Paid assembly services exist and are priced per item, and for large or complex pieces they are frequently worth it.

What is worth knowing is whether the item requires two people, which many do and which is stated in the instructions rather than in the listing.

What to establish before ordering

A short list that prevents most of the problems.

What delivery tier is included and what the alternatives cost.

Whether the item will physically fit through the route to its destination.

Whether old item removal is available, at what cost, and whether a free take-back obligation applies.

What installation is required and whether it must be done by a qualified person.

And what the return arrangement is if the item does not fit or is unsuitable, since returning a large item is considerably harder than returning a small one and the cost frequently falls on the buyer.

The comparison worth making

Total delivered and installed cost rather than product price.

On large items this frequently reverses the ranking between retailers, since one may include services the other charges for.

It is the same principle as comparing flights on total cost rather than fare, and it is missed for the same reason — the headline number is the one presented.

Delivery date reliability

A separate consideration for large items.

Delivery slots for furniture and appliances are frequently booked weeks ahead and are difficult to change.

Which matters if the item is replacing something that will be removed, since a gap between removal and delivery is a genuine problem for an appliance.

Confirming the slot before disposing of the old item, and asking what happens if the delivery fails, avoids the situation of a kitchen without a fridge for a fortnight.

Damage on delivery

The situation that determines whether the purchase goes well.

Inspecting before signing is the practical protection, and signing unexamined generally weakens a subsequent claim.

Where inspection is not practical, signing as unexamined and noting it is a reasonable position and is frequently accepted.

Photographing packaging and the item before moving it, and reporting damage immediately rather than after unpacking days later, is what makes a claim straightforward.

Most retailers have a short window for reporting delivery damage, and it is considerably shorter than the general return period.

Measuring properly

The five minutes that prevents most failed deliveries.

Measure the item's packaged dimensions rather than the assembled ones, since it arrives boxed.

Measure the narrowest point of the route, including door frames, stair turns and ceiling height on landings.

And check whether doors can be removed, which frequently resolves a few centimetres and is the standard remedy.

Retailers publish packaged dimensions and buyers reliably use the assembled ones, which is where the failures come from.