Flat-Pack In-Frame Kitchens: DIY Buying Guide
Flat-Pack In-Frame Kitchens: A Complete DIY Buying Guide
A flat-pack kitchen can reduce costs without changing the visible materials or finished appearance of the cabinetry. At Painted Kitchen Co, our flat-pack option uses the same in-frame cabinet components as the assembled option; the difference is who carries out the cabinet assembly.
This guide explains what arrives, the tools and skills you need, what your fitter should know and when fully assembled cabinetry may be the better choice.
Why choose flat pack?
- Lower assembly cost: you are not paying us to unbox and build every cabinet in the workshop.
- Easier access: boxed components can be useful in homes with narrow halls, staircases or restricted access.
- Same core materials: oak-veneered MDF carcases, solid birch frames and door rails, MDF centre panels and dovetailed solid-oak drawers.
- Flexible installation: assemble cabinets in the order your room and fitting schedule require.
What makes assembly straightforward?
- Pre-drilled screw holes
- Clearly marked drawer-runner positions
- Dovetailed drawer boxes designed to slot together
- Grooved frames that help panels align squarely
- Pocket-hole construction at the frames
- Clear front and back panel identification
The doors, drawer fronts and final alignment require more care than assembling the basic cabinet box. If you are unsure, a competent kitchen fitter or joiner can assemble the units for you.
What tools will I need?
For cabinet assembly, allow for a cordless drill/driver, suitable screwdrivers and bits, a spirit level, tape measure, square, clamps and a clear protected work area. Installation into the room may require additional tools and fixings appropriate to the walls, floor and worktop. Your fitter remains responsible for choosing the correct site fixings and ensuring the finished installation is safe and level.
How long does assembly take?
It depends on the cabinet type, your experience and how carefully the components have been organised. A straightforward base cabinet will usually be quicker than a drawer unit, tall housing or cabinet with several moving parts. We recommend assembling the first unit slowly, checking the instructions and measurements before building the remainder.
Are flat-pack and assembled cabinets identical when finished?
They use the same principal cabinet components and are designed to create the same finished appearance. The quality of the final result depends on careful assembly, accurate squaring and correct door and drawer adjustment. If you are not confident in those tasks, the assembled option may offer better value.
Assembly videos
What finish do the cabinets have?
The cabinet interiors are lacquered and ready to use. Exterior frames, doors and visible components are supplied primed, ready for preparation and final painting. Finishing after installation allows joints, caulked areas, scribes and visible trim to be completed as one scheme. Read our kitchen painting guide before work begins.
Useful construction details
- Fully lacquered wipe-clean interiors
- 40mm service void for pipes and wiring
- Dovetailed solid-oak drawer boxes
- Soft-close adjustable runners
- Traditional in-frame face construction
See the complete materials and construction specification.


Can my normal kitchen fitter build the cabinets?
Yes. Most competent kitchen fitters will be familiar with cabinet assembly, but in-frame cabinetry requires accurate squaring and careful adjustment. Send your fitter our assembly information before the installation date and make sure assembly time is included in their quotation.
When should I choose fully assembled cabinetry?
Choose assembled cabinets if site time is limited, you do not have a suitable assembly area, or your fitter would charge more to assemble the units than our workshop option. It may also be preferable for a large kitchen with many drawer units or complex cabinets.
What happens if something is damaged during assembly?
Stop work and contact us with photographs and the cabinet reference. We can identify the part and explain the available replacement or repair options. Damage caused during assembly is different from a delivery fault, so report any delivery damage as soon as the order arrives and within the period stated in our terms.
Planning before you order
- Measure the room carefully, including services, doors, windows and ceiling heights.
- Browse the cabinet range and current online prices.
- Send us your plan or sketch for a free CAD proposal.
- Decide which cabinets will be standard and whether any bespoke sizes are required.
- Confirm flat pack or assembled before the final order is approved.
- Arrange secure, dry storage and enough clear space for assembly.
Frequently asked questions
Do I need specialist woodworking skills?
No specialist joinery is normally required for the cabinet boxes, but you should be comfortable measuring, drilling, checking for square and making final adjustments.
Can I paint the kitchen myself?
Yes, provided you follow an appropriate preparation and paint system. Many customers use a professional decorator to achieve a furniture-quality finish.
Can you mix flat-pack and assembled cabinets in one order?
Ask us when the quotation is prepared. We can advise how best to structure the order and delivery for your project.
Do you deliver throughout the UK?
Yes. See our delivery information and areas covered.
Explore cabinet prices or request a free design and quotation.