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— LED Wall · Fine-pitch Indoor

LG MAGNIT LSAA (P1.5) — cabinet grid & viewing distance

Problem. A 4 x 2.25 m indoor video wall (16:9) needs a fine-pitch cabinet that stays sharp for viewers as close as 1.6-3 m without the cabinet grid or native resolution becoming a guessing game before procurement.

Answer. The LG MAGNIT LSAA (P1.5) resolves this wall as a 7 x 7 cabinet grid, giving an actual built wall of 4.2 x 2.36 m and a native canvas of 2688 x 1512 pixels. The calculator's closest-seat default of 3 m sits inside the pitch's optimal viewing band for video content.

02 / In depth

How this preset reads — the engineering view.

Pixel pitch is the number that decides everything else downstream. At 1.56 mm, the LG MAGNIT LSAA (P1.5) sets both the cabinet grid the calculator returns (7 x 7 cabinets for this wall) and the optimal viewing band for video content of roughly 1.6-3.1 m (pitch x 1.0 to pitch x 2.0). Inside that band the pixel structure disappears into a continuous image; closer than 1.6 m, individual pixels start to resolve to the eye.

At 1200 nits, this cabinet is built for a controlled indoor environment — a boardroom, lobby, or briefing space without direct sun or bright window glare, not an open-shade or daylight-facing location. Front-service access and wall-mount fixing keep the installation profile shallow, which suits a flush feature wall where rear access for maintenance isn't available. The native canvas this wall produces — 2688 x 1512, around 4.1 megapixels — comfortably carries 1080p and near-4K source content without heavy upscaling.

To use the calculator: drag the wall width and height sliders and watch the cabinet grid and native resolution recompute in real time against the 600 x 337.5 mm cabinet module. Because cabinets are whole units, the calculator rounds UP to the next full row and column — never down — so the built wall is never smaller than the target. Here that adds about 5 % on each axis: a 4 x 2.25 m target becomes a 4.2 x 2.36 m wall. That is expected rather than an error, but it is the larger figure the architectural opening has to accept.

What the calculator does not decide: the structural and rigging load the wall imposes on the supporting wall or frame, the power and data cabling run back to the controller position, the video processor or scaler that feeds the cabinet's native resolution, how source content gets mapped onto a non-standard aspect canvas, and any ambient-light calibration the room may need even though this is an indoor, controlled-light product.

What this preset deliberately does not solve

  • Structural and rigging capacity for the wall-mounted cabinet load is not assessed by the calculator.
  • Power distribution, data cabling and processor/scaler selection are separate design steps, not calculator outputs.
  • The 1.6-3.1 m band is a viewing-comfort guide for video content, not a fixed rule for still graphics or logos, which can tolerate closer viewing.

How this preset differs from its siblings

Within the fine-pitch indoor category, cabinets vary chiefly on pitch and brightness, and both move the viewing-distance and grid math this page states. A coarser pitch in the same category pushes the optimal viewing band further out and changes the cabinet count for an identical wall size; a lower-brightness cabinet suits a dimmer room but not one with any ambient light spill. This page exists separately because the 1.56 mm pitch, 1200-nit brightness and front-service wall-mount profile combine into one specific, defensible answer for a 4 x 2.25 m controlled-indoor wall — swapping any one of those specs changes the grid, the resolution, or the room fit.

02 / What that means, drawn

Past the opening on both axes

opening
4.00 m × 2.25 m
Built
4.20 m × 2.36 m · 7 × 7 = 49 cabinets
Past the opening
20 cm wider · 11 cm taller(hatched)
Fits inside
6 × 6 = 36 at 3.60 m × 2.02 m(dashed)

Built as 7 × 7 = 49 cabinets, the wall measures 4.20 m × 2.36 m from the 600 × 337.5 mm cabinet. That is 20 cm wider and 11 cm taller than the 4.00 m × 2.25 m opening, so it does not go into it. The largest grid that does fit inside is 6 × 6 = 36 at 3.60 m × 2.02 m.

This preset’s opening and cabinet grid use the calculator’s sizing engine. The solid grid rounds up; a dashed alternative, where shown, fits inside the opening. This is a size comparison, not structural, electrical or installation approval.

03 / Hydrated calculator

Try the configuration — live.

The calculator below is preloaded with this preset’s state. Adjust any input — your URL stays shareable.

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Brief us on the project — with this configuration.

Presets are a typology starting point. The brief wizard captures the room geometry, programme and constraints we need to translate this configuration into a real design.