LED Wall Resolution by Cabinet Size and Pixel Pitch

An LED wall's native resolution is the cabinet's pixel count multiplied by the number of cabinets, and the cabinet's pixel count is its size in millimetres divided by the pixel pitch. A 4.8 × 2.7 m wall of 600 × 337.5 mm cabinets at 1.25 mm pitch is exactly 3840 × 2160, which is why that combination is the usual route to a true 4K LED wall.

This data reference is written by Singapore-based AV and IPTV integrator Prestige Solutions for AV consultants and technical managers who need resolution, content canvas and processor figures before specifying an LED wall display. It deliberately does not repeat pitch-selection advice; it answers the next question—what the chosen pitch and size produce, and what the processor has to drive. Figures are calculated planning values as of 2026; the manufacturer's cabinet datasheet is the final reference.

Pixels per cabinet by size and pitch

Cabinet pixel counts are fixed by the manufacturer, and nominal pitches are rounded, so always use the datasheet pixel count rather than dividing by the nominal pitch. The table lists the counts for the cabinet sizes most often quoted in Singapore projects.

The 600 × 337.5 mm format matters because its 16:9 shape maps cleanly to broadcast resolutions: every 8 × 8 block of cabinets is a 16:9 wall, and the pitch decides whether that block is 2560 × 1440, 3072 × 1728, 3840 × 2160 or 5120 × 2880.

Common wall sizes and their native resolution

The wall's native resolution, not the source resolution, is what content should be designed for. The combinations below are the ones we calculate most often at the design stage.

Two observations follow. A 6 × 3 m ballroom wall at P2.6 is only 2304 × 1152—well below 4K—so sending it a 4K source wastes bandwidth and forces downscaling. At the other end, a 3.6 m wall at P0.9 already reaches 3840 × 2160, so a 4.8 m wall at the same pitch exceeds what a single 4K input can fill natively.

Processor port loading

Each sending-card output port can drive a fixed number of pixels, so total pixels decide the port count and the processor model. On common 1 Gbps LED sending-card ports the planning limit is about 650,000 pixels per port at 60 Hz and 8-bit colour, as of 2026; higher refresh rates or 10-bit colour reduce it. Check the exact figure in the chosen processor's manual.

The practical count is higher than the arithmetic minimum because a port's load must be made of whole cabinets in a continuous daisy-chain, and a spare port per processor is good practice for backup loops. On 4K fine-pitch walls, many processors also support 10 Gbps fibre outputs to a fibre converter near the wall, which cuts cable runs in ballrooms where the rack is 40–80 m away.

Input bandwidth and scaling

The processor's input must carry the wall's native resolution at the frame rate you need, or the processor will scale. HDMI 2.0 and 12G-SDI carry 3840 × 2160 at 60 Hz; HDMI 1.4 and 3G-SDI stop at 1920 × 1080 at 60 Hz. Walls wider than 3840 pixels need either two synchronised inputs, a processor that accepts higher input resolutions, or content that is intentionally scaled.

Scaling is not always bad, but it should be a choice. Presentation slides at 1920 × 1080 upscaled to 2304 × 1152 look soft on text; the same wall fed at native resolution from a media server shows crisp text. For corporate and ballroom walls, we recommend at least one input path at native resolution for designed content, with scaled inputs kept for laptops and cameras.

Content canvas rules for designers

Designers need the native canvas, not "4K", in the brief. The rules we give event and creative teams are:

• Design at the native resolution in the table above, with pixel-accurate artboards.
• Keep key text above about 40 pixels in height on P2.6 walls viewed from 8 m or more.
• For non-16:9 walls, supply content at the wall's aspect ratio; pillarboxing 16:9 content on a 2:1 wall leaves about 11% of its width unused.
• Request a cabinet map (columns × rows and pixel per cabinet) from the integrator before artwork starts.
• Test a 1-pixel grid pattern on the wall to confirm there is no scaling in the chain.

Non-standard wall sizes and mixed cabinets

When the wall size is set by the architecture rather than by cabinet multiples, the resolution becomes an odd number and should be stated explicitly. A 5.5 m opening filled with 600 mm cabinets takes 9 columns (5.4 m), giving 4320 pixels across at P1.2—wider than any single 4K input. Some manufacturers offer half-width or corner cabinets to fill gaps, and these have their own pixel counts that must be added to the map. Curved and L-shaped walls follow the same arithmetic per face, but the processor sees one continuous canvas, so the content team must know where the corners fall in pixels. In every case, the cabinet map drawn by the integrator, with pixel coordinates for each cabinet, is the document that ties resolution, cabling and content together.

Checks before issuing the tender

A tender specification that states pitch and size but not resolution and processing leaves the most expensive decisions open. Include these items so bids are comparable:

1. Cabinet model, size and pixel count per cabinet from the datasheet.
2. Cabinet layout (columns × rows) and resulting native resolution.
3. Processor model, number of output ports used and spare ports.
4. Input formats required at native resolution (HDMI 2.0, 12G-SDI or DisplayPort).
5. Refresh rate and colour depth at which the port loading was calculated.
6. Distance from rack to wall and whether fibre outputs are included.

Earlier LED project notes, including ballroom and boardroom installations, are listed on the Prestige Solutions home page.

FAQ

Why does my LED wall show a black border when I send it 4K?

The wall's native resolution is lower or has a different aspect ratio than the source, and the processor is set to 1:1 pixel mapping. Either scale the input to the wall's resolution in the processor or re-render the content at the native canvas size.

How many cabinets do I need for a Full HD LED wall?

At 600 × 337.5 mm and P1.5, 5 × 5 cabinets give exactly 1920 × 1080 on a 3.0 × 1.69 m wall. At 500 × 500 mm and P2.6, 10 × 6 cabinets give 1920 × 1152, which is Full HD width with 72 extra rows.

What changes if I run the LED wall at 120 Hz?

Each sending-card port carries roughly half the pixels it does at 60 Hz, so the port count and possibly the processor size double. Only specify 120 Hz where cameras or fast content need it, such as broadcast and esports.

Recommended next step

Contact Prestige Solutions to review your site drawings and current operating pattern. Call +65 8010 2337, message us on WhatsApp, or email sales@prestigesolutions.com.sg. You can also browse the full product range before the site walk.