What Is an In Frame Kitchen?

If you have been browsing kitchen ideas, you will have seen two very different looks: the traditional in frame kitchen, where every door sits neatly inside a visible frame, and the clean, modern slab kitchen, where flat doors cover the cabinet fronts edge to edge. Both can look beautiful, but they are built in completely different ways, and that affects cost, storage, fitting and the overall feel of the room.

So, what is an in frame kitchen? It is a kitchen where a solid frame is fixed to the front of each cabinet, and the doors and drawer fronts are fitted inside that frame, sitting flush with it. You can see the frame around every door, which gives the units a crafted, furniture-like look. Most in-frame kitchens are painted and paired with shaker style doors, which is why they are so closely linked with classic English and country kitchens.

In-frame style kitchen with Porcelain shaker doors | Aspin Collins

How Slab Doors Differ

A slab door is the opposite approach. It is a single flat panel with no frame, groove or raised detail, and it sits over the front of the cabinet rather than inside it. The door covers the cabinet edges, so from the front you mostly see a run of smooth door faces with small, even gaps between them.

Slab kitchens rely on colour, finish and proportion instead of joinery details, which is why they suit contemporary, minimalist and handleless designs so well. If you want to compare slab doors with framed shaker doors on style alone, our guide to slab doors vs shaker covers that side in more detail.

Porcelain Matt slab kitchen doors in a modern kitchen | Aspin Collins

In-Frame vs Slab: The Key Differences

The two styles differ in five main ways:

  • Where the door sits: inside the cabinet frame on an in-frame kitchen; over the cabinet front on a slab kitchen.
  • What you see: a visible frame around every door, against a near-continuous surface of door faces.
  • Hinges: in frame kitchen doors often use exposed butt hinges or special in-frame concealed hinges, while slab doors use standard concealed hinges that adjust in three directions.
  • Storage: the frame narrows each opening slightly, while slab cabinets give fuller access to the interior.
  • Fitting: in-frame doors need very precise, even gaps inside the frame, while overlay slab doors are more forgiving and easier to adjust.

How Each Style Looks

An inframe kitchen has a strong sense of craftsmanship. The frame creates a clear outline around every door and drawer, and the shadow lines between door and frame give the units depth. It suits period homes, farmhouse kitchens and anyone who wants the room to feel like freestanding furniture rather than fitted units.

A slab kitchen looks calm and architectural. With no frames or mouldings, a plain slab kitchen door lets the finish do the talking, whether that is a soft super matt, a reflective high-gloss or a natural wood grain. It suits modern homes, open-plan spaces and smaller kitchens, where a simple surface keeps the room feeling uncluttered.

Cost and Practical Use

The extra frame, joinery and precision fitting usually make in-frame kitchens more expensive than standard slab kitchens, both for the units and for installation. In frame kitchen cabinets also lose a little internal width to the frame, which can matter in a small kitchen where every centimetre of drawer space counts.

Slab doors are generally the more budget-friendly option. They fit standard cabinets, come in stock sizes and can be replaced individually, which is why they are a popular choice for refreshing an existing kitchen without a full refit. If you are measuring up for new fronts, our guide to kitchen door sizes explains how door sizes relate to cabinet sizes.

The Pros and Cons of In-Frame Kitchens

Weighing up the in-frame kitchen pros and cons helps you decide whether the look is worth the extra investment.

Pros:

  • A timeless, handcrafted appearance that suits traditional homes.
  • A sturdy frame that adds rigidity to each cabinet.
  • Visible detailing that makes painted colours look rich and deliberate.

Cons:

  • Usually higher cost, both for the units and for fitting.
  • Slightly reduced access to cabinet interiors.
  • Doors and drawers need careful adjustment to keep the gaps even over time.
  • Fewer options if you want a sleek, handleless or minimalist finish.

What About an Inframe Effect Kitchen?

An inframe effect kitchen aims to give you the framed look without true in-frame construction. Instead of fixing a frame to each cabinet, the effect is created with framed-style doors, panels or trims fitted to standard units. It can be a more affordable way to get a framed appearance, although a close look usually shows the difference, because the doors still sit over the cabinet rather than inside a frame.

If you are considering this route with slab units, the painted matt colours in our slab range include an In Frame Profile, a 3050 x 35 x 40mm trim offered in matt finishes only. Our team can talk you through whether it suits your plans.

Can You Combine In-Frame and Slab?

Yes. An in frame slab kitchen pairs a traditional frame with flat slab doors set inside it, giving a modern door with a crafted outline. It is a popular look for contemporary rooms in older homes, and it shows that the in-frame or slab decision is really about construction as well as door style.

For most homeowners replacing doors on existing units, though, overlay slab doors are the practical choice. Our slab kitchen doors come in high-gloss, matt and super matt finishes, while the matt slab collection adds Kala Ash woodgrain and real Oak Veneer for anyone who wants warmth without a frame. Choosing between finishes? Our guide to gloss vs matt kitchen doors compares them side by side.

Which Should You Choose?

Choose an in-frame kitchen if you love traditional craftsmanship, are fitting a new kitchen from scratch and have the budget for extra joinery and careful installation. It is a long-term investment in a classic look.

Choose slab doors if you want a modern finish, easy fitting, full access to your cupboards and the freedom to refresh your kitchen by changing the doors alone. Inframe kitchen doors can only go on cabinets built with a frame, whereas slab doors fit the standard cabinets found in most UK kitchens. Aspin Collins supplies slab doors, drawer fronts and matching finishing components in stock sizes, delivered across the UK, so you can plan the whole room in one finish.

Frequently Asked Questions

1. What is an in-frame kitchen?
An in-frame kitchen has a solid frame fixed to the front of each cabinet, with the doors and drawers fitted inside it so they sit flush. The visible frame gives a traditional, furniture-like look.

2. Is an in-frame kitchen better than a slab kitchen?
Neither is better overall. In-frame suits traditional, crafted designs, while slab suits modern kitchens and is usually more affordable, easier to fit and better for full access to cupboards.

3. Are in-frame kitchens more expensive?
Usually, yes. The extra frame, joinery and precise fitting add cost to both the units and the installation, compared with standard cabinets fitted with overlay slab doors.

4. What are the downsides of an in-frame kitchen?
The main downsides are higher cost, slightly narrower cabinet openings, and doors that need careful adjustment to keep the gaps inside the frame even over time.

5. What is the difference between in-frame and inframe effect?
A true in-frame kitchen has doors fitted inside a frame on each cabinet. An inframe effect kitchen recreates the look with framed-style doors, panels or trims on standard cabinets, where the doors still sit over the cabinet front.

6. Can you have slab doors in an in-frame kitchen?
Yes. Flat slab doors can be set inside a cabinet frame for a modern in-frame look. On standard cabinets without a frame, slab doors are fitted over the cabinet front instead.

— Saqib Wateeb