Bag of 65 modesty blocks in No. 6 and 8 sizes. Available in black, brown or white to match your cabinet finish. A simple, effective way to join cabinet panels at right angles without visible fixings.
Colour
Price
QTY
Brown
£2.44£2.93
White
£2.44£2.93
Modesty blocks are one of those things that hold half the kitchens and fitted furniture in the country together, yet most people outside the trade have never heard of them. If you’re fitting cabinets, carcasses, or any kind of flat-pack furniture professionally, you’ll know exactly what these are and why you always need more than you think. Each bag contains 65 blocks in No. 6 and 8 sizes, available in black, brown or white so you can match the interior finish without the blocks drawing attention to themselves.
The principle is straightforward. A modesty block sits in the internal corner of a cabinet join, with two screw holes at 90 degrees to each other. Drive a screw through each face and you’ve got a solid right-angle fixing between two panels. No routing, no specialist jigs, no fuss. It’s not glamorous work but it holds things square and it does it quickly, which matters when you’re fitting an entire kitchen in a day.
Where Modesty Blocks Earn Their Place on the Job
Fitted kitchens are the obvious application, but these blocks turn up all over the place. Bedroom furniture, bathroom vanity units, office joinery, shop fitting, utility rooms — anywhere a carcass needs to be assembled cleanly and held at 90 degrees. They’re equally at home in pre-built flat-pack units that need re-securing after transport, or in bespoke joinery where a simple internal corner fix is all that’s needed.
Having a bag of modesty blocks on the van is just sensible. They weigh nothing, cost almost nothing, and there’s always a moment on a fit-out where one saves you fifteen minutes of head-scratching. At this price, buying a few bags at once makes obvious sense. The colour choice matters more than people expect — white blocks in a white carcass disappear, brown in a teak or walnut unit, black in a dark finish. Small detail, but clients notice.
Bags of 65 give you enough to get through a typical kitchen fit without running short mid-job.
Pro Tip: When assembling carcasses flat on the floor, fit all the modesty blocks finger-tight first so you can check everything is square before fully driving the screws — it is much easier to adjust before things are locked in.
Modesty blocks are used wherever two flat panels need joining at a right angle inside a cabinet or carcass. Fitted kitchens are the most common application, but they are just as useful in bedroom wardrobes, bathroom furniture, office storage units, retail shopfitting and utility room joinery. They are typically used on internal corners where a screw-only fix from the outside would either not be possible or would leave an unsightly hole on a visible face.
Best For
Fitted kitchen carcass assembly
Bedroom and wardrobe furniture
Bathroom vanity units
Office and retail shopfitting
Flat-pack furniture re-assembly
Internal corner panel joints
Available In
Black
Brown
White
No. 6 and 8 screw sizes
Key Features
65 blocks per bag
Right-angle fixing at 90 degrees
No routing or specialist tools required
Two screw holes per block
Colour options to match cabinet interiors
Lightweight and easy to handle
Not suitable for: Not suitable for structural load-bearing applications or external use. These are internal cabinet fixings designed for panel furniture assembly, not for timber framing or outdoor joinery.
Fitting modesty blocks takes seconds once you know the process. Position the block into the internal corner where two panels meet at 90 degrees, align the screw holes with each face, and drive a screw through each hole into the panel behind. No pilot holes are strictly necessary in most sheet materials, though pre-drilling in MDF close to an edge avoids splitting.
Match the block colour to your carcass interior before you start — it is easy to overlook when you're moving quickly through a fit. Using the correct screw gauge for the block size keeps everything tight without stripping the fixing points.
Select the correct block colour to match the cabinet interior finish before starting assembly
Position the carcass panels at 90 degrees to each other on a flat surface
Place the modesty block into the internal corner with a screw hole facing each panel
Pre-drill if working close to the edge of MDF or thin sheet material to prevent splitting
Drive a screw through one face of the block into the first panel
Drive a second screw through the other face into the adjoining panel
Check the joint is square before fully tightening if assembling a full carcass
What screw size do I use with these modesty blocks?
These blocks are designed for No. 6 and No. 8 screws. The No. 8 is the more common choice for standard kitchen carcass panels, giving a solid hold without the risk of pulling through. Use the size appropriate to your panel thickness.
Can I use these in white carcasses without them showing?
Yes, that is exactly why the white option exists. Fitted inside a white carcass they are barely visible, especially once shelves and doors are in place. Match the block colour to the interior finish and they blend in without any additional covering.
How many modesty blocks does a typical kitchen fit use?
It varies depending on the number of units, but a standard kitchen with 10 to 15 carcasses will typically use anywhere from 40 to 80 blocks if you are fitting them at every internal corner joint. A bag of 65 will usually cover a small to medium kitchen, so having two bags on the van is a sensible habit.
Modesty blocks are moulded from plastic with two perpendicular screw channels set at 90 degrees, designed to create a rigid right-angle joint between two flat panels. Suitable for use with No. 6 and No. 8 screws. The plastic construction is lightweight but holds well under the lateral loads typical of cabinet carcass assembly. Available in black, brown and white to suit different furniture finishes.
Screw Sizes
No. 6 and No. 8
Quantity per Bag
65
Available Colours
Black, Brown, White
Joint Angle
90 degrees
Material
Plastic
SKU
100MOD0
Box Quantity
65
Colour
Black, Brown, White
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