SUPPLIED LAYOUT INTERVALS

Trim — total gaps to exclude scenarios.

How does changing total gaps to exclude affect trim when the other inputs stay fixed?

What this decision changes

The chosen interval or repeat changes discrete positions, full rows or complete pattern cuts. It is different from a blanket percentage added to area. Method basis: Pieces are estimated from combined length with allowance. Mitres, joins and offcuts are not optimised.

The focus is total gaps to exclude. All other shared inputs remain fixed for each evaluated range.

Length = perimeter − excluded gapsTrim Calculator

Evaluate your supplied alternatives

Start with your measured plan and selected product data. The initial values and range are illustrative. Each scenario changes only total gaps to exclude; the other entered values stay fixed.

Display units

Measured plan and product inputs

Length

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Width

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Total gaps to exclude

Where to get this value

Measure only the area, length or quantity to deduct, in the unit shown. Keep this consistent with the surface being calculated.

Purchased piece length

Where to get this value

Use the actual usable quantity or dimensions of the product you intend to buy. Check the label and the unit shown here.

Waste allowance

Shortcuts only; choose your own allowance above.

Where to get this value

Enter your own allowance. Presets are input shortcuts, not a construction recommendation.

Supplied comparison range for total gaps to exclude

Lower supplied comparison value

Where to get this value

Measure only the area, length or quantity to deduct, in the unit shown. Keep this consistent with the surface being calculated.

Upper supplied comparison value

Where to get this value

Measure only the area, length or quantity to deduct, in the unit shown. Keep this consistent with the surface being calculated.

Nine evenly spaced values are evaluated. Whole counts are rounded to distinct integer scenarios. Values between the listed samples are not calculated.

9 evaluated scenarios

Baseline: Pieces to purchase — 6 pieces. Rejected combinations remain visible below.

Quantity to plot

Each bar is one actual calculated pieces to purchase. Horizontal values: total gaps to exclude in m.

Total gaps to exclude	Pieces to purchase	Change from baseline	Use this scenario
1.2 m	7 pieces	1 piece	Open in calculator Exact quantity breakdown Net trim length 16.8 m Length with allowance 18.48 m
1.45 m	7 pieces	1 piece	Open in calculator Exact quantity breakdown Net trim length 16.55 m Length with allowance 18.205 m
1.7 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 16.3 m Length with allowance 17.93 m
1.95 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 16.05 m Length with allowance 17.655 m
2.2 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 15.8 m Length with allowance 17.38 m
2.45 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 15.55 m Length with allowance 17.105 m
2.7 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 15.3 m Length with allowance 16.83 m
2.95 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 15.05 m Length with allowance 16.555 m
3.2 m	6 pieces	0 pieces	Open in calculator Exact quantity breakdown Net trim length 14.8 m Length with allowance 16.28 m

Read the evaluated results

Use the evaluated count steps to see when another row, column, drop or position enters the stated layout.

Replace every illustrative baseline measurement and selected product value with the inputs for your actual task.
Enter a comparison range on the focused input's stated unit and quantity basis.
Review rejected combinations and use the exact detail lines to distinguish measured demand from whole purchases.
Open an evaluated scenario in the full calculator to save its original inputs and quantity breakdown to a browser material project.

Keep the comparison within scope

Compare intervals already permitted by your plan or product. No safe spacing, structural layout or fixing requirement is chosen.

Only quantities from supplied dimensions and specifications are calculated.

No material-property reference values are bundled; obtain product values from the selected supplier's data sheet.

Only the listed samples are evaluated. Intermediate values, alternate constraints and global cutting optimality are not inferred from the graph.

Continue with this quantity method

Trim Calculator

Other independent input decisions

Prepare the actual material data

Quantity method and illustrative scenarios checked 6 October 2026. Methods and scope.