A television recess that is even 20mm too tight can turn a carefully made media wall into a frustrating compromise. The screen may be difficult to fit, cables can be crushed, and the finished proportions can feel awkward. This guide to television recess dimensions explains how to plan the opening properly, balancing a clean fitted appearance with ventilation, access and room for the technology you actually use.
For a bespoke media wall, the recess should be designed around the exact television model, the chosen mounting method and the surrounding joinery. A diagonal screen size is only the starting point. Precision comes from checking the manufacturer’s product dimensions before fabrication begins.
Guide to television recess dimensions: start with the TV
Never size a recess from the advertised screen size alone. A 55-inch television describes the diagonal measurement of the display, not its full outside width and height. Bezels vary between models, as do the positions of ports, power leads and mounting points.
Record the television’s full width, height and depth from the specification sheet. Also check whether the stand feet project beyond the screen if the television will sit on a cabinet shelf rather than be wall-mounted. For a recessed installation, measure the widest and deepest parts of the unit, including any rear housing.
It is sensible to choose the television before finalising the joinery drawings. Designing a recess for a future screen size can work, but it needs careful thought. TV dimensions do not increase in a uniform way between brands or models, and a much larger opening can make a smaller screen look lost within the wall.
Allow side and top clearance
As a starting point, allow at least 25mm to 50mm of clear space at each side and above the television. This gives the screen room to be installed without scraping the finished surface and avoids an overly cramped appearance. The right allowance depends on the design.
A slim, contemporary media wall may use tighter visual margins, but only where the television manufacturer permits adequate airflow and the mounting arrangement leaves access for fitting. A more generous border suits traditional panelling, feature lighting or a recess intended to accommodate a replacement television later on.
The opening should not be so large that the recess reads as an empty box. A bespoke design considers the television as part of the elevation: its size, the fire or cabinetry below it, and the wall width around it all affect the result.
Plan enough depth behind the screen
Depth is often the dimension overlooked in early plans. Modern televisions can be very slim at their edges, but their rear panels, brackets, plugs and cables need more space. The recess depth must be measured from the finished face of the wall, not from the framing behind plasterboard or panelling.
For a flush or near-flush result, establish the depth of the television at its mounting points, then add the depth of the wall bracket, cable bend radius and enough room for ventilation. HDMI leads, aerial cables and power cords can project further than expected, particularly where ports face directly backwards.
A recessed wall mount with a slim, right-angled plug arrangement may reduce the depth required. It must still allow the television to sit securely on the bracket and be removed for maintenance. Avoid forcing cables sharply against the back of the recess. It can damage connectors and make later changes unnecessarily difficult.
Ventilation is part of the measurement
A television produces heat, and a fitted recess restricts the natural air movement available on an open wall. The manufacturer’s stated clearance requirements always take priority. Some televisions require little additional space at the sides, while others specify gaps above, below or behind the unit.
Where the design places a television in a deeper enclosed recess, consider a discreet route for warm air to escape. This might be a concealed ventilation gap, a grille integrated into the joinery or a planned void behind the feature wall. The best solution depends on the screen, the depth of construction and whether other equipment is housed nearby.
Avoid treating ventilation as an afterthought. A neat shadow gap can be visually subtle, whereas a later-added grille can disrupt a finished media wall. It is easier to build airflow into the design than to correct an overheating issue once the room is complete.
Account for the wall bracket and viewing height
The bracket position affects both the recess dimensions and how comfortable the television is to watch. A fixed mount is usually the simplest choice for a fully recessed screen. A tilt or pull-out bracket requires more depth and clearance, particularly at the sides, because the television needs room to move.
The centre of the screen is generally most comfortable around seated eye level. In a living room this often means the screen centre sits roughly 1000mm to 1100mm from the finished floor, but it depends on the sofa height, viewing distance and whether a fireplace or cabinet sits beneath. Mounting the television too high can lead to uncomfortable viewing, even if the wall looks balanced at first glance.
If a fire is included below the screen, its height and heat clearance requirements may set the television position. This is a design trade-off worth resolving before the recess is made. A proportionally pleasing arrangement is valuable, but comfort and safety should lead the decision.
Leave practical access for cables and power
A polished media wall should not mean inaccessible technology. Plan the socket locations, aerial point, data connection and cable routes before the wall is closed. In most cases, power sockets should sit behind the television or within an accessible cabinet below, rather than relying on extension leads hidden in the void.
A cable channel between the television recess and lower cabinetry keeps leads out of sight while allowing them to be replaced. If a soundbar, games console, Sky box or streaming device is part of the set-up, allow for those components too. They may need ventilation, remote-control visibility and simple access for resetting or changing connections.
Do not assume every device belongs directly behind the TV. A soundbar can change the opening height, while a games console in a closed cupboard may run hot. Bespoke joinery allows these details to be considered as part of one coordinated design rather than improvised after installation.
Match the recess to the media wall design
The correct television recess dimensions are not purely technical. The opening should sit comfortably within the wider wall, with cabinetry, shelving and panelling aligned deliberately. Symmetry can look striking, but it is not the only answer. An off-centre television may be the better choice where a chimney breast, alcove or door position dictates the layout.
Material thickness also matters. A recessed opening framed in painted MDF, timber slats or stone-effect panels will have a different visual depth and shadow line. The finish should be selected early, as it changes the final internal dimensions. Even tile, plaster and decorative trim can take useful millimetres from an opening.
For homeowners in Edinburgh, West Lothian and Central Scotland, older properties can add another layer of complexity. Walls may be uneven, chimney breasts may conceal awkward voids, and floor levels can vary. A measured survey by an experienced joiner prevents assumptions from becoming expensive alterations later.
Common sizing mistakes to avoid
The most common error is ordering the joinery around a screen size rather than a specific television. The next is forgetting that ports and cable heads need physical space behind the unit. Both problems are avoidable with a detailed specification and a site measure.
Other issues include fitting the recess too high, providing no route for cables, and designing enclosed cabinets for heat-producing equipment without ventilation. It is also worth considering how the television will be removed. A screen that can only be taken out by dismantling finished panelling is not a practical long-term installation.
A master joiner will consider the finished dimensions, not only the framing. At Install Joinery Scotland, this measured approach helps ensure media walls feel built for the room and remain practical after the final coat of paint has dried.
Before committing to the design, place the exact television dimensions, bracket specification and cable plan on the drawing. That small step gives the recess the breathing room, access and proportions it needs to look considered for years to come.
Planning Bespoke Storage?
Send a free, no-obligation enquiry. We will review your details, discuss your project and arrange the appropriate survey or next step.
Get a Free QuoteExplore Made-to-Measure Storage Services
See the service pages for starting prices, project details and a direct route to an enquiry.
Understairs Storage
Made-to-measure cupboards and drawers that turn unused stair space into practical storage.
Explore service →Media Walls
Bespoke media walls with concealed cables, fitted storage, shelving and optional lighting.
Explore service →Fitted Wardrobes
Full-height fitted wardrobes planned around your room, clothes and preferred finish.
Explore service →