Diagonal Windows Mod (1.21.11, 1.20.1) – Place Glass Panes Diagonally

Diagonal Windows Mod solves a small but noticeable building problem in Minecraft: awkward pane and bar placement at corners. Instead of forcing standard straight connections, it lets glass panes connect diagonally inside a block, with the same behavior also applying to iron bars. For builders working on cleaner windows, sharper corners, or more deliberate decorative details, that simple change can make builds look more natural without overcomplicating placement.

Key Features

  • Allows glass panes to connect diagonally within a block, making corner windows and angled details easier to build.
  • Extends the same diagonal placement behavior to iron bars, not just colored glass panes.
  • Includes a block tag option to exclude blocks that are unintentionally affected.

Screenshots

Diagonal Windows Mod screenshot 1 showing mod in action
Diagonal Windows Mod screenshot 2 showing mod in action
Diagonal Windows Mod screenshot 3 showing mod in action
Diagonal Windows Mod screenshot 4 showing mod in action
Diagonal Windows Mod screenshot 5 showing mod in action
Diagonal Windows Mod screenshot 6 showing mod in action
Diagonal Windows Mod screenshot 7 showing mod in action
Diagonal Windows Mod screenshot 8 showing mod in action
Diagonal Windows Mod screenshot 9 showing mod in action

How to Install

  1. Choose the version of Diagonal Windows Mod that matches your Minecraft version and loader.
  2. Install the appropriate loader first: Forge, NeoForge, Fabric, or Quilt, depending on the file you plan to use.
  3. Install the listed dependencies for your setup, including libraries such as Fabric API, Puzzles Lib, or Forge Config API Port when required.
  4. Launch Minecraft with the same loader and version as the mod file.

Requirements

Requirement Details
Mod Loader NeoForge, Forge, Fabric, Quilt
Dependencies Minecraft Forge, Fabric API, Quilt Loader, NeoForge Installer, Puzzles Lib, Forge Config API Port
Minecraft Version 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.21, 1.20.4, 1.20.1, 1.20, 1.19.2, 1.18.2

Pros & Cons

Pros

  • Adds diagonal connections for glass panes, which directly improves corner window builds.
  • Also works with iron bars, so the feature is useful beyond decorative glass.
  • Provides a way to exclude unintentionally affected blocks through a block tag.
  • Supports multiple loaders and a broad range of Minecraft versions listed in the available files.

Cons

  • The mod focuses on a narrow building feature, so its scope is intentionally limited.
  • Some setups may require extra libraries or loader-specific dependencies.
  • The provided feature list is brief, so advanced configuration depth is not clearly documented in the available data.

Download

Minecraft VersionLoaderDownload Links
For Minecraft 1.18.2
Forge

For Minecraft 1.18.2
Fabric

For Minecraft 1.19.2
Forge

For Minecraft 1.19.2
Fabric

For Minecraft 1.20.1, 1.20
Forge

For Minecraft 1.20.1, 1.20
Fabric

For Minecraft 1.20.4
Forge

For Minecraft 1.20.4
Fabric

For Minecraft 1.21.1, 1.21
NeoForge

For Minecraft 1.21.1, 1.21
Fabric

For Minecraft 1.21.3
NeoForge

For Minecraft 1.21.3
Fabric

For Minecraft 1.21.4
NeoForge

For Minecraft 1.21.4
Fabric

For Minecraft 1.21.5
NeoForge

For Minecraft 1.21.5
Fabric

For Minecraft 1.21.6
NeoForge

For Minecraft 1.21.6
Fabric

For Minecraft 1.21.8, 1.21.7
NeoForge

For Minecraft 1.21.8, 1.21.7
Fabric

For Minecraft 1.21.10, 1.21.9
NeoForge

For Minecraft 1.21.10, 1.21.9
Fabric

For Minecraft 1.21.11
NeoForge

For Minecraft 1.21.11
Fabric

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What's New

  • Updated to Minecraft 1.21.11.
  • Bundled Diagonal Blocks library updated to v21.11.1.
  • Latest listed project update date is 2025-12-28.
  • The project page reports 2,921,098 downloads on Modrinth.

FAQ

What does Diagonal Windows Mod do in Minecraft?

It allows glass panes to connect diagonally within a block, which helps reduce awkward corner placement. The same diagonal behavior also applies to iron bars.

Does Diagonal Windows Mod work with Fabric, Forge, NeoForge, or Quilt?

The available data lists support across NeoForge, Forge, Fabric, and Quilt, with download entries varying by Minecraft version. Some versions are available for multiple loaders, while the listed requirements also include loader-specific dependencies.

Which Minecraft versions are listed for Diagonal Windows Mod?

The data lists support from Minecraft 1.18.2 up to 1.21.11, including versions such as 1.19.2, 1.20.1, 1.20.4, 1.21, 1.21.1, 1.21.3, 1.21.4, and 1.21.5.

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