Kitchen Shelving: Dimensions, Solutions, and Ideas
When storing heavy crockery or provisions, an open kitchen shelf requires sturdy shelf supports and a minimum depth of 20 cm to 30 cm to prevent the shelves from sagging.
Planning kitchen storage often goes far beyond conventional closed wall units. Open shelving visually breaks up cabinet fronts and keeps frequently used items within arm's reach. For DIY enthusiasts, questions quickly arise regarding the correct dimensions, suitable materials, and, above all, secure fastening to the wall or inside the cabinet carcass. A stable kitchen shelf acts like a bridge — the span and the nature of the supporting brackets dictate how much load the entire structure can ultimately hold.
Dimensions & Suitability: How Big Should the Shelf Be?
The sizing of a kitchen shelf depends strictly on its intended contents. A shelf that is too deep above the worktop will get in the way during cooking, while a shelf that is too narrow will cause large dinner plates to overhang.
- Depth 15 cm to 20 cm: Ideal for spice jars, small storage containers, mugs, or a coffee station. This depth does not protrude far into the room and eliminates the risk of bumping into it.
- Depth 30 cm: The standard dimension for dinner plates, cereal bowls, and small saucepans. From this depth onwards, considerable leverage forces act upon the wall fixings.
- Width 60 cm: A classic grid dimension in kitchen construction. Shelves of this width can be mounted flush above base units of the same width for a neat visual alignment.
- Material Thickness: For internal shelves and wall shelves made from melamine-faced chipboard, 16 mm or 19 mm is standard. For heavy loads or wider spacing between supports, solid wood from 20 mm upwards or a thicker MDF is preferable.
Choosing the Right Bracket and Support Hardware
The choice of fixing determines the overall load capacity. Different hardware systems are used in the kitchen, depending on whether the shelf hangs on the wall or sits inside a cabinet carcass.
Wall Shelves: Brackets and Supports
With open wall shelves, the fitting hardware bears the entire weight. Concealed floating shelf supports disappear inside the board, but require deep drill holes in the wood and a solid wall. For typical DIY installations, visible brackets are often the safer and simpler choice.
For heavy loads such as stacks of plates or cast-iron casserole dishes, use robust metal shelf brackets & supports. These are anchored into the wall using wall plugs. The design of shelf supports ranges from simple L-brackets to decorative cast-iron elements. Pay close attention to the wall structure during installation: solid masonry holds standard wall plugs without issue, whereas a plasterboard wall strictly requires specialised hollow-wall cavity fixings.
For industrial designs or heavy-duty pantry storage, opt for solid heavy-duty shelf brackets. The distance between two brackets for a 19 mm thick wooden board should not exceed 50 cm to a maximum of 80 cm, otherwise the shelf will sag in the middle under load.
Inside the Cabinet: Shelf Support Pegs
If the shelf sits inside a kitchen cabinet, it is supported by dedicated fittings inserted into the side walls of the carcass. Modern kitchen units use the System 32 standard, a regular line of holes with a drilling diameter of often 3 mm or 5 mm. Compatible metal or plastic shelf support pegs are simply pushed into place. For glass shelves, versions with rubberised pads are available to prevent slipping.
Solutions and Ideas for Kitchen Planning
A wall shelf is only one part of overall kitchen organisation. Combining open and closed storage systems ensures maximum efficiency when cooking.
The Sink Zone
The area above the sink is designated for wet dishes. Instead of a standard wooden board that could swell from moisture, specialised inserts are ideal here. A wall cabinet dish drainer rack replaces the solid wooden base with a stainless steel grid, allowing water to drip straight down into the sink.
Alternatives to Fixed Shelving
Fixed shelves in base cabinets are often impractical, as items in the back row are difficult to reach. Here, an upgrade is well worth considering. If the fixed shelves are removed, kitchen cabinet pull-outs mounted on telescopic runners can be fitted instead. A full-extension runner allows the entire contents of the cabinet to be pulled smoothly forward.
Complementing with Internal Organisers
While the wall shelf makes the most of vertical space, the area below also requires proper organisation. The combination of open shelves above and well-structured drawers below is highly functional. A precise kitchen drawer organiser keeps cutlery sorted, while an under-sink kitchen waste separation bin allows refuse to be tucked away neatly out of sight.
Required Tools for Installation
For a secure wall shelf installation in the kitchen, you will need the following tools:
- Rule and pencil for marking out
- Spirit level for precise horizontal alignment
- Drill with suitable drill bit (e.g. 8 mm masonry bit for standard wall plugs)
- Cordless screwdriver or manual screwdriver
- Suitable wood screws (Ensure the correct drive type is used, typically PZ or TX)
Step-by-Step Installation:
- Mark the height and position of the shelf on the wall.
- Mark and drill the fixing holes for the first shelf bracket.
- Insert the wall plugs and loosely screw on the first bracket.
- Use the spirit level to establish the exact level position for the second bracket, then drill and secure it.
- Place the shelf board on top and secure it from underneath through the brackets using short screws.
Frequently Asked Questions (FAQ)
How deep should a shelf be for dinner plates? A shelf depth of 28 cm to 30 cm is required for dinner plates. Shallower shelves are only suitable for side plates or mugs.
How far apart can shelf brackets be spaced? For standard 19 mm thick chipboard, brackets should be spaced no more than 60 cm to 80 cm apart. Under heavy loads from crockery, reduce this span to 50 cm.
Which material is suitable for kitchen shelving? Melamine-faced chipboards are wipe-clean and resistant to minor moisture. Solid wood must always be oiled or lacquered to prevent staining from steam or grease.
Which screws should I use to secure the shelf board to the brackets? Use short chipboard screws. The screw should penetrate no more than two-thirds into the wood. For a 19 mm thick board and a 2 mm thick metal bracket, a screw length of 15 mm to 16 mm is ideal to prevent the screw tip from bursting through the top surface.