The lowest cabinet price does not always produce the lowest fitted kitchen price. If you are paying an installer to build every cabinet before fitting it, assembly is part of the bill. A kitchen with pre-assembled carcasses can therefore be better value once the complete job is priced.
The important word is “can”. The saving depends on the cabinet order, labour allowance, access and what arrives already fitted. For a South West London kitchen project, compare two complete installation proposals before deciding which basket is cheaper.
What is a pre-assembled carcass?
The carcass is the cabinet box behind the doors and drawers. A factory-assembled or rigid carcass arrives with that box already built. Flat-pack cabinets arrive as components that need assembling before they can be installed.
This changes one part of the work. It does not remove the need to set out the kitchen, level and secure cabinets, fit fillers and end panels, align fronts or coordinate worktops and services. Ask exactly which hinges, drawers and accessories are pre-fitted; “assembled” should not be read as “everything finished”.
Where the labour saving comes from
With flat-pack units, someone must identify the components, assemble the boxes and check them before installation. Across a kitchen, that is a separate task to allow for in the programme and quote. Factory assembly moves that task away from the property.
That can matter in a small Streatham kitchen with limited working space, or a Battersea flat where boxes must be unpacked without blocking the shared access route. These are planning examples, not a promise that rigid units will always be quicker on your job.
Ready-built cabinets also take up more space in transit and storage. Check stairs, doorways and tight turns before ordering, particularly for tall units. Flat packs may be easier to carry through restricted access, although individual packs can still be heavy. A difficult delivery can reduce the benefit of less assembly on site.
Magnet versus IKEA: compare the actual cabinet system
Magnet factory-assembled cabinets: Magnet’s installation guide describes an 18mm rigid option assembled in its factory. The same page also lists a 16mm ready-to-assemble option. A Magnet quote therefore needs to specify which construction you are buying; the name alone does not establish an assembly saving.
IKEA METOD: the UK METOD base-cabinet specification lists an 18mm frame, components for assembly and a suspension-rail system for mounting. It also identifies items such as doors, drawers, legs and finishing pieces as separate purchases. Check your full kitchen plan rather than comparing a bare frame price with a complete cabinet package.
What that means for installation: Magnet’s rigid option removes cabinet-box assembly from the site workload. METOD requires that assembly, but an installer familiar with the system may work efficiently with it. Get the labour priced against each design, including the drawers, panels and appliance arrangement. Neither brand name proves the final installed price.
What about guarantees? Magnet advertises a lifetime guarantee for its factory-assembled cabinets; IKEA lists a 25-year guarantee for METOD. Both are subject to their terms. Cabinet guarantees are not automatically guarantees for an independent installer’s labour, and their headline length is not a like-for-like measure of how long a kitchen will last.
The calculation that decides value
Ask for the same layout and comparable specification to be priced in both systems. Include furniture, fittings, delivery, assembly, installation, worktops, connections, disposal, making good and VAT where applicable.
The test is simple: if the extra purchase and delivery cost of rigid cabinets is smaller than the labour cost avoided, rigid cabinets can reduce the fitted total. If the purchase saving on flat-pack is larger than the additional assembly charge, flat-pack may still win.
Ask for assembly to be identified in the quote. Do not assume a lower labour cost will appear automatically in a fixed installation price. Our guide to comparing refurbishment quotes explains why matching the scope comes first.
And the cost over the years?
Reduced assembly labour is an upfront saving, not proof of lower lifetime maintenance costs. Long-term value also depends on the specification, installation, care, repair options and the terms of any guarantee. Flat-pack does not automatically mean poor quality, and a rigid cabinet does not make a kitchen immune to damage.
If you can assemble cabinets competently yourself and agree that handover with the fitter, flat-pack may suit your budget. If you want the contractor to handle everything, paying more for factory assembly deserves a proper comparison.
Compare your plans with OSPM
OSPM supplies and fits Magnet kitchens and undertakes kitchen refurbishment in South West London. Share your Magnet or IKEA design, itemised order, postcode and access details so we can discuss the installation scope and what needs allowing for.
Send us your kitchen plans before committing to the cabinets. The useful question is not simply “Which kitchen is cheaper?” It is “What will this kitchen cost, supplied, assembled and properly fitted in my home?”
Have a project in mind?
Send OSPM your postcode, a description of the work and your preferred timing.
Tell us about your property