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Improved Windows

by CreepSkeet

Improved Windows changes how glass panes, iron bars and stained glass panes connect to nearby blocks, so panes meet slabs, stairs and other pane blocks without gaps.

ForgeClient and serverAll rights reserved1.16.3 – 1.16.5

What it does

Pane blocks normally stop short of slabs and stairs, which leaves floating gaps in glass walls and window rows. The mod lets panes connect to slabs, stairs, windows, railings and walls, so the joins line up as the builder intended. Connections form automatically when a pane is placed beside a supported block, and no setup is needed for the default behavior.

The mod targets glass panes, iron bars and stained glass panes, and it is compatible with panes added by other mods as well as the vanilla ones. Servers that run it need every player to install it too. Files are published for Forge only, for three game versions: 1.16.3, 1.16.4 and 1.16.5, with v1.0.1 for 1.16.5 as the latest file. The code is not open source, and the mod is released under All rights reserved.

Key features

  1. Pane connections to slabs

    Glass panes and iron bars join slab tops and bottoms, so partial-height walls no longer leave openings.

  2. Pane connections to stairs

    Panes attach to stair blocks, closing the gaps that appear where a glass wall meets a roof or staircase.

  3. Windows and railings

    Panes also connect to windows, railings and walls, which lets a single pane run continue cleanly across mixed blocks.

  4. Automatic joins

    Connections form on their own when a pane is placed beside a supported block, with a configuration option for changing behavior.

Compatibility

Latest build for each game version and loader.

1.16.5v1.0.1
1.16.4v1.0.1
1.16.3v1.0.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Horizontal Glass Panes is an open source option for Fabric, Forge and NeoForge, released under the GNU General Public License v3.0 only and covering 1.20.1 – 26.2. Glass is a Fabric and Forge mod under All rights reserved, covering 1.16.5 – 1.20.1. Improved Windows is a Forge-only, closed mod for 1.16.3 – 1.16.5, so its range does not overlap with Horizontal Glass Panes.

ModLoadersGame versionsEnvironmentUpdated
Improved WindowsForge1.16.3 – 1.16.5Client and server2026-07-22
Horizontal Glass PanesFabric, Forge and NeoForge1.20.1 – 26.2Client and server2026-06-17
GlassFabric and Forge1.16.5 – 1.20.1Client and server2024-08-05

Questions

Does Improved Windows need to be installed on the server?

Yes. A server running it needs every connecting player to have it too.

Which loader does Improved Windows support?

Forge is the only loader with published files, for 1.16.3, 1.16.4 and 1.16.5.

Does Improved Windows work with panes from other mods?

Yes. The mod is compatible with panes added by other mods as well as the vanilla glass panes and iron bars.

More from CreepSkeet

All projects

What the author says

Tired of glass panes that just won't fit against your slabs and stairs, leaving your builds full of floating panes and awkward gaps? Pane Connector fixes exactly that. It lets any pane block connect seamlessly to slabs and stairs, so your windows, railings, and walls finally line up the way they should. Special…
CreepSkeet, on the Modrinth page

Official listing

Owner
CreepSkeet
Published
2026-07-22
Updated on Modrinth
2026-07-22
Facts verified
2026-10-15