Glass tools & calculators
Free planning tools and reference guides for homeowners, trades and architects. Carry one draft between tools, compare sourced performance and export drawings or schedules. Confirm final specifications with your supplier or glazing engineer.
For homeowners
Not sure what you need? Start here.
Plan your application and collect the details your supplier or specialist needs.
Step-by-step measuring practice for replacement glass and units.
Total glazing area — and weight — for multi-pane jobs, in seconds.
Compare exact constructions, physical estimates and sourced performance.
Compare named solar-control builds using daylight, heat and shading priorities.
Search colour codes and full names; confirm your choice with a physical sample.
For trades
Configure, price and specify with confidence.
Pane schedule, area and weight for rectangles, circles, ovals and triangles.
Instant indicative price: size, thickness, edge, holes.
Build your glass step by step — glass, processing, edges, holes.
Generate a complete enquiry draft with layers, processing and outstanding confirmations.
Add plies and interlayers to get your total laminated thickness.
Position fabrication geometry and export a dimensioned PDF, SVG or DXF draft.
Dated supplier profiles selected by construction, thickness and dimensions.
Check a clear aperture and prepare a survey of the remaining delivery route.
Named glazing builds with published Ug values, sources and assembly conditions.
For architects & specifiers
Technical guidance, performance data and specification tools.
“What are you building?” visual picker across 14 applications.
Collect dimensions, supports, loads and questions for a glazing specialist.
Floor, stair and maintenance-use briefs covering loads, slip and postbreakage requirements.
Understand E / EW / EI, test regimes and the evidence needed for a complete glazing system.
Find product/system evidence, test regimes, dimensional limits and outstanding checks.
Noise reduction guidance and Rw / Rw+Ctr in plain English.
Compare sourced LT, g and Ug values for named assemblies.
Compare two to four exact builds, physical quantities and sourced performance.
GL-01 style specification blocks and project glass schedules.
Proper measuring practice for new-build and replacement units.
Search colour codes and full names; confirm your choice with a physical sample.