[WIP] Modular Window & Door Builder — Measure, Design, and Build Windows Entirely in Unity

[Sphyco]

Hey everyone,

Just wanted to share a tool I’ve been working on — it started as something to speed up dev on my own game, but it’s grown into a full modular window and door builder that works entirely inside the Unity Editor.

No Blender, no external modeling — you set width, height, choose how many divisions you want, assign panel types, and it builds everything in-scene with proper scaling, mitered joins, and real-world spacing.

What it does:

• Create modular windows and doors in Unity with live preview
• Subdivision support (vertical + independent horizontal rows per column)
• Panel type support (Fixed, TopHung, SideHung + hinge direction)
• Click-to-measure system to place windows that perfectly fit openings
• Realistic and Low-Poly modes for detailed or stylized projects
• Auto handle placement logic based on sash width
• Clean prefab system with 45° mitered corners and scaling-safe tips

It’s built using prefabs I created specifically for this system — with fixed-length ends and stretchable centers so the visual fidelity stays clean, even at different sizes.

Here’s a quick video showing how it works:

Modular window builder

Planning to release it on the Asset Store soon

Would love to hear what you think, and happy to answer questions or hear ideas as I polish the last parts.

[Sphyco]

Just a quick update while the tool is in review for the Asset Store!

While waiting, I’ve been building a Profile Designer module — this lets you create your own outer frame and sash profiles using precise millimeter-based inputs. It includes live sketching, dimension annotations, and one-click prefab generation.

Outer Frame Designer:

You can control depth, lip height, thickness, and more — and everything is reflected instantly in the profile sketch with dimension labels.

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** Composite Profile Preview:**
This view shows how the sash and outer frame interact, helping you fine-tune spacing and lip gaps before committing to a design.

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Live Prefab Generation & Preview:
Once you’re happy, hit generate and the system builds your profile using clean quad-based segments — perfect for scalable, modular placement with The Window Builder.

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I’m aiming to make this tool more than just a window prefab generator — it’s becoming a parametric window system built fully inside Unity.

Would love feedback or ideas while I polish the final features.

[Game-Dragon]

Pretty cool! Are these windows UV unwrapped and support texturing?

[Sphyco]

Thanks. Yeah, the profiles are made with clean quad geometry, so they’re easy to texture. They come with basic UVs by default, which work fine for tiled materials like wood or metal.

Ill also be looking into adding more control over Uvs in the future. If you have a specific use case in mind, let me know.

[Mark_01]

Maybe its the " not enough coffee yet " lol . Will the window also make doors ? or will that be part of the pack ?

[Sphyco]

THe first release Will Only be Windows, I will be adding hinge doors and sliding doors In a update. It will be all in one package.

[Sphyco]

Modular Window Builder – Tool Now In Review (#341 in queue)
I’ve just finalized the PDF Starter Guide and pushed some last-minute polish before launch.

Here’s a look at how the tool works
Window generation directly in the Unity Editor

Config save/load system

Prefab saving & updating

Built-in measurement tool