SyntaxFlow

Glass · Production · Shop windows

Glass cutting optimiser for shop windows and shopfitting

Type or paste your sizes and get the plan with the least waste. In your browser, no sign-up.
What it does and how it is worked out

Lay out a shop front and its fit-out on the sheet, free and in your browser. The list below is an example, two side windows of 1200 × 1800 and a centre one of 700 × 1800, each with its 350 mm fanlight above, so you see a result straight away: 1 DLF sheet of 3210 × 2250 and 92.3 % yield. Clear it and put in your own sizes.

Free, no sign-up, no email. Everything you type stays in this browser — your cutting list never reaches us.

A shop front puts big panes next to small ones. The optimiser fills the space the big ones leave with the small ones of the same order, and with your own offcuts first.

sheets
—
used
—%
waste
—%
Your list
Width mmHeight mmQty
The stock sheet
Sheet
Trim and breakout
Edge trim is the damaged rim you cannot use — a few millimetres on a clean rack, more on a sheet that has travelled. Breakout width is the strip you lose between two pieces when you snap them apart; if you leave it at zero the answer will be optimistic and the cutter will disagree with you.
Glass price and type
Write the glass in your own words. It is only ever compared with itself, and it is what stops the rack offering you a 6 mm clear offcut for a 4 mm low-e order.
Offcut rack
The rack — offcuts you already own
Glass you have already paid for. This job is cut out of it before it buys a sheet — how it decides, and what it is worth.
Saved jobs
Saved jobs
Rotation
Rotation
Fix the orientation for anything directional: patterned glass, some laminated interlayers, and any coated product where the coating side and the drawing direction have to be kept. It costs yield — the page will tell you exactly how much.

Workshop templates, example sizes: A shop fit-out: window, partitions, cabinet doors and shelves (the example job) · A shop window in three panes · A display cabinet: shelves and sides. Other jobs: shower screens · windows · mirrors

Each row is one size: width, height and how many of them.
Sizes are finished glass, cut size. If you work to a tolerance, subtract it before you get here — this page does not guess it for you.
—

The plan is the shop-floor version of this: every piece labelled on the diagram, the cuts in the order the table makes them, and each offcut with its real size for the rack. It stays in your browser like everything else here.

Sheets needed
—
Yield
— %
Waste
— m²
What the waste costs
— €

Working out the cut is free and stays free. Pro holds 400 offcuts on the rack instead of 25, prints a label for every pane and keeps your saved jobs, for €29 once. What Pro adds →

What the software does in a glass shop

More than the nesting. What a workshop needs around a cutting list is here too, and none of it leaves this browser:

  • Each pane carries its own data. A reference, a shape (rectangle, circle or triangle) and the glass it is cut from; a list pasted from a spreadsheet keeps them, and the plan groups the panes by glass.
  • A rack of offcuts that knows where they are. Each offcut can have its place in the shop and a photo, and the next job is cut from the rack first.
  • The plan and the labels for the table. The cutting plan can carry your logo, and every pane can get a label with a QR code.
  • A log of what was cut. Today's jobs stay listed, to print the plan or the labels again.

To see it on a real order, open the example job. With Pro the rack holds 400 offcuts instead of 25 and every pane gets a label.

The example of this page, worked out

The list the page opens with is an example of a shop front and its fit-out, not a customer's order: 2 × 1200 × 1800, 1 × 700 × 1800, 2 × 1200 × 350, 1 × 700 × 350 mm (quantity × width × height), on DLF sheets of 3210 × 2250 mm with 10 mm edge trim a side and 4 mm breakout, panes allowed to turn. The figures are the optimiser's own, worked out by the same code as the tool above.

What the optimiser answersFigure
Sheets to buy1
Panes6
Yield92.3 %
Offcuts back on the rack (0)0.00 m²
Scrap0.56 m² (7.7 %)
A11200 × 1800A21200 × 1800B1700 × 1800C1C2D1

What to watch with shop windows

Workshop templates for shop windows

Example sizes, not a standard: load one into the list above, then change each size to the opening you measured. Loading one replaces the list; nothing is sent and no email is asked for.

TemplateQty × width × height, mmSheetsYield
A shop fit-out: window, partitions, cabinet doors and shelves (the example job)2 × 1200 × 1800, 4 × 900 × 1500, 6 × 600 × 900, 8 × 450 × 600369.8 %Load
A shop window in three panes3 × 1000 × 2200191.4 %Load
A display cabinet: shelves and sides6 × 1000 × 400, 2 × 400 × 1200146.5 %Load

Sheets and yield on a DLF sheet of 3210 × 2250 with an empty rack, as the optimiser works them out. Every job worked through in full: three orders worked out.

Questions people ask

How many glass sheets does this shop front take?
The example on this page, 2 × 1200 × 1800, 1 × 700 × 1800, 2 × 1200 × 350, 1 × 700 × 350 mm (quantity × width × height), fits on 1 DLF sheet of 3210 × 2250 mm with 10 mm edge trim and 4 mm breakout, at 92.3 % yield, and 0 offcuts go back on the rack. Put in your own sizes and the page works out yours.
What is the largest pane that can be cut from a DLF sheet?
With 10 mm of edge trim a side, 3190 × 2230 mm out of a 3210 × 2250 mm sheet. A bigger pane has to come from a jumbo sheet (6000 × 3210 mm).