For fabricators & contractors
The Alappatt Optimizer
Our free Window Material Calculator helps you plan cuts, estimate quantities, and reduce waste — before you place a single order.
Our Free Tools
Two separate tools — pick the one you need.
For fabricators
Window Material Optimizer
Plan aluminium profile cuts, estimate quantities, and reduce waste before you order. Login required — available to registered Alappatt Metals customers.
- Cut plan optimisation
- Waste minimisation
- Order quantity estimate
Free for everyone
Curtain Pipe Purchase Optimizer
Enter your window widths and mounting style — get the minimum number of stock pipes to buy and a precise cut plan. No login, no account needed.
- Inside, outside & corner mounts
- Smart cut optimisation
- Print or save as PDF
How it works
01
Enter your window dimensions
Input the width, height, and quantity for each window or door opening in your project.
02
Select your profile type
Choose from our range of aluminium profiles. The calculator knows the standard lengths and section weights.
03
Get your cut list and quantities
Instantly see how many lengths you need, an optimised cut plan, and an estimated material cost.
04
Place your order
Bring the output to our counter or send it over — we'll have your materials ready.
Why fabricators use it
Less waste
Optimised cut plans mean fewer off-cuts and less material going to scrap.
Faster quoting
Generate accurate material lists in minutes, not hours. Quote more jobs, win more work.
Fewer ordering mistakes
Know exactly what you need before you order. No more short deliveries or excess stock.
Works on any device
Use it on site from your phone, or at your workshop on a desktop — no app download needed.
Login required
The calculator is free to use. You'll need to log in with your Alappatt Metals account. Don't have one? Contact us and we'll set you up.