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3D Home Theatre Planner

Free Home Theatre Design Software — Plan Your Room in 3D

Most home theatre design software is built for general interior layout — furniture, floor plans, wall colours — and treats speakers and acoustics as an afterthought. Nano Theatre's design tool is built the other way around: home cinema design software made specifically for planning a media room, where room size, speaker placement, and acoustics are the actual starting point, not an add-on.

Free to use · works directly in your browser · no download required.

Room Size Planning

Room dimensions are the single biggest factor in how a home theatre performs — before any equipment is chosen. Input your actual length, width and height to see:

  • Optimal seating distance from the screen, based on your room's depth
  • Maximum comfortable screen or projector size for the room
  • Whether single- or multi-row seating fits without blocking sightlines or walkways

Acoustic Planning

Once the room shape is set, the tool factors in how that geometry affects sound — hard surfaces, proportions, and speaker distance from walls all change how a system actually sounds:

  • Where reflections are likely to affect dialogue clarity
  • Recommended treatment zones — first-reflection points and corners for bass control
  • How ceiling height affects overhead (Dolby Atmos) speaker placement

Speaker Planning

Speaker count and placement are configured for the channel layout you want — from a straightforward 5.1 setup through full Dolby Atmos configurations:

  • Front, centre and surround positions relative to your seating
  • Overhead/ceiling placement for Atmos layouts, based on room height
  • Subwoofer placement guidance based on room dimensions

Why a Home Theatre–Specific Tool, Not a General Design App

General-purpose tools like basic floor-planners are built for furniture and wall layout — genuinely useful for that, but not built to answer home-theatre-specific questions: does this room support Atmos overhead speakers, where should acoustic panels go, what screen size actually fits at this seating distance. Nano Theatre's design tool is scoped specifically to those questions, because that's what determines whether a home theatre performs the way it's supposed to.

From Design to Installation

The tool is built for conceptual planning — testing layouts, room sizes, and speaker configurations before committing to equipment or construction. For an actual installation, a Nano Theatre specialist reviews your room in person or remotely to finalise the design against real structural, electrical and acoustic conditions.

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Frequently Asked Questions

Yes — the room, acoustic, and speaker planning tool is free to use in your browser, with no download or account required.

Yes, you can input custom room dimensions, or start from one of the preset layouts if you'd rather adjust an existing template than start from scratch.

Yes — the speaker planning step includes overhead/ceiling positions for Atmos layouts, calculated against your room's height and dimensions.

The generated layout is for conceptual planning only. Final designs are prepared by Nano Theatre specialists after evaluating room dimensions, structural conditions, acoustics, electrical requirements, and your preferences in more detail.

No — the tool is built for homeowners planning a room, not AV professionals. You don't need prior knowledge of acoustics or speaker layouts to get a usable starting plan.

DISCLAIMER

The generated theatre layout is intended for conceptual planning only and should not be used as a construction or installation document. Final designs are prepared by Nano Theatre Private Limited specialists after evaluating room dimensions, structural conditions, acoustics, electrical requirements, and client preferences. All dimensions and placements are approximate and subject to field verification.