Free · Material quantities

Stacked Vinyl Panel & Post Material Budget

Estimate whole stacked panels, posts, tie beams and entered material costs for a straight open fence run.

  • Formula & worked example
  • Private in your browser
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

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Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

A 6.4 m run with 2 m panels and 10 cm posts needs three spans and four posts. A 1.1 m height using 40 cm stacked panels needs three layers, or nine panels.

Spans = ceil[(run − post width) / (panel width + post width)]; layers = ceil[height / panel height]; panels = spans × layers

Worked example

Enter these known values and leave the other values blank.

Fence length
6.4 m
Fence height
1.1 m
Clear horizontal panel width
2 m
Height of one stacked panel
40 cm
Post width along the run
10 cm
Price per piece
50 USD
Price per panel
20 USD
Price per piece
10 USD
Spans
3 spans
Whole stacked panel layers
3 layer(s)
Columns needed
4 pieces
Total cost of columns
200 USD
Panels needed
9 panels
Total cost of panels
180 USD
Tie beams needed
3 beams
Total cost of tie beams
30 USD
Entered panel, post and beam cost
410 USD

Assumptions and limitations

  • The geometry assumes a straight open run, one post at each end, and one tie beam per span. Gates, corners, shared posts, slopes and closed loops are excluded.
  • Panel dimensions exclude post widths. Both spans and stacked layers round upward; the final panel or layer may require trimming or a compatible product size.
  • The model counts whole purchased panels and supports zero entered material prices. Labor, delivery, tax, foundations, hardware and waste beyond the rounded pieces are excluded.
  • Changing layers to solve backward returns a compatible full-layer height or panel height; it does not identify a unique height within the ceiling interval. Verify the chosen dimensions against the actual fence system.

Common questions

Why does 1.1 m require three 40 cm layers?

Two layers reach only 0.8 m. Three provide 1.2 m before any permitted trimming; paying for 2.75 panels would understate a whole-panel purchase.

References

Bookify rounds stacked fence layers upward to whole purchased panels while retaining compatible inverse solutions. Bookify requires a positive whole layer count and a run longer than one post, and allows zero material prices.

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