Material takeoff from your repeat-unit schedule
Create a preliminary solar racking takeoff from user-defined repeat-unit counts, per-unit component quantities, rail length, stock length, unit mass and waste.
Project inputs
Defaults are examples, not recommendations. Replace them with traceable project assumptions.
Screening result
Updated from the inputs at left.
Preliminary decision support only. Confirm inputs, governing standards and final conclusions with the responsible qualified professional before design, procurement or construction.
Method and assumptions
Repeated table quantities are multiplied by table count. Rail length receives the entered allowance and rounds up to whole stock lengths. Clamp and fastener purchase quantities also round up after allowance.
- Module, post and beam counts remain exact schedule quantities.
- Rail mass uses the entered profile mass per metre.
- The copied result can seed a procurement worksheet.
Use one consistent repeat unit
A repeat unit can be one module table or one complete canopy row. Every per-unit input must describe the same unit. A carport handoff carries only unit count and module count; it cannot supply structural quantities.
Quantity arithmetic example
Suppose a separately supplied illustrative schedule has two identical units, with 18 modules, 4 posts, 2 beams, 40 m of rail, 40 clamps and 80 fasteners per unit. These invented quantities demonstrate arithmetic only; they are not a recommended structure.
Using 6 m rail stock, 1.5 kg/m rail mass and a 5% purchasing allowance gives 36 modules, 8 posts, 4 beams, 80 m net rail, 14 stock pieces (84 m), 84 clamps, 168 fasteners and 126 kg of purchased rail. The allowance applies to rail, clamps and fasteners; it does not increase modules, posts or beams.
Before using the totals
- Obtain a repeat-unit schedule and connection details from the responsible designer or supplier.
- Confirm alloy, section mass, stock lengths, pack sizes and spare-part policy.
- Check cutting patterns separately: rounding total rail length up to stock pieces does not prove that all individual cuts fit.
- Rail mass is not total shipment mass. Include other components and packaging before transport planning.
Start with the carport capacity calculator if you still need an illustrative module count.