What is a glass hatch?

A glass hatch is a light pattern of widely spaced diagonal lines used to indicate glazing in plan, section and elevation without obscuring the surrounding detail.

How do I import a glass PAT file into AutoCAD?

Copy the .PAT file into a support file search path, run HATCH, set the pattern type to Custom and choose the glazing pattern with the hatch scale at 1.

Can I use this glass hatch in Revit?

Yes. Import it under Manage, Additional Settings, Fill Patterns as a Drafting pattern so the glazing indication keeps the same weight at every view scale.

Can I change the scale?

Yes. Widen the spacing for large glazed elevations and tighten it for small jamb and head details so the glazing indication remains visible.

Glass Hatch Generator

Create the light diagonal glazing pattern used for windows and curtain walling.

Free

Material library

Choose a common building material as a starting point.

Glass loaded. Adjust any parameter below.

Pattern parameters

These values are written into the PAT file.

Pattern name

Generated automatically from the pattern type and dimensions.

Units

Pattern size

Module of the material symbol. Scales the whole hatch.

Rotation

deg

Scale

Multiplies every exported distance in the PAT definition.

Live preview

360 mm wide

PAT definition

glass_60.pat

;; Generated with ArchSupply Utilities - Hatch Pattern Generator;; Drawing units: millimetres (metric pattern);; Load in AutoCAD with HATCH > Custom, or in Revit via Manage > Additional Settings > Fill Patterns.*GLASS_60, Glass: grouped glazing lines, 60 mm group spacing60, 0,0, 0,6060, 8.4,0, 0,6060, 16.8,0, 0,60

PAT definition ready

PAT output is in beta. Verify the pattern scale after importing into your CAD or BIM application.

About the glass hatch

Glass is drawn lightly on purpose. The convention is a group of thin diagonal lines with generous space between groups, so glazing reads as transparent next to the heavier frame and structural hatches around it.

This pattern suits window schedules, curtain wall details, glazed partitions and balustrades. Keeping the lines sparse means the mullion, gasket and sealant linework stays legible in a tight jamb detail.

Adjust the spacing to suit the detail scale, rotate the field where two glazed elements meet, then export the PAT file for AutoCAD or import it as a Revit drafting pattern.

How to use the PAT file

Download the .PAT file, or copy the definition into your own pattern library file.
AutoCAD: place the file in a support path, then choose Hatch, Pattern type Custom and pick the pattern name.
Revit: Manage, Additional Settings, Fill Patterns, New, Custom, then import the .PAT file and set the import scale.
Metric patterns assume millimetre drawing units; imperial patterns assume inches.

Frequently asked questions

What is a glass hatch?: A glass hatch is a light pattern of widely spaced diagonal lines used to indicate glazing in plan, section and elevation without obscuring the surrounding detail.
How do I import a glass PAT file into AutoCAD?: Copy the .PAT file into a support file search path, run HATCH, set the pattern type to Custom and choose the glazing pattern with the hatch scale at 1.
Can I use this glass hatch in Revit?: Yes. Import it under Manage, Additional Settings, Fill Patterns as a Drafting pattern so the glazing indication keeps the same weight at every view scale.
Can I change the scale?: Yes. Widen the spacing for large glazed elevations and tighten it for small jamb and head details so the glazing indication remains visible.

Related materials

Every material opens the same generator with its pattern preloaded.