CalculationTime

Construction & Trade

Fence Calculator

Full calculator

Construction & Trade

Fence Calculator

Live answer14 panels/bays23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate
Live result14 panels/bays23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate
Formula used

Fenceable length = total run − gate openings × gate width. Base panels = ceiling(fenceable length ÷ panel width). Planning panels = ceiling(base panels × (1 + allowance percent ÷ 100)). Posts = base panels + 1 for an open run, or base panels for a closed loop. Material estimate = planning panels × panel cost + posts × post cost.

This is the method behind the answer, so the result can be checked rather than simply trusted.

Live math canvas

Your numbers, formula and explanation together

Fence Calculator: 14 panels/bays. 23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate

Formula applied

The exact method behind this answer

CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.

Fenceable length = total run − gate openings × gate width. Base panels = ceiling(fenceable length ÷ panel width). Planning panels = ceiling(base panels × (1 + allowance percent ÷ 100)). Posts = base panels + 1 for an open run, or base panels for a closed loop. Material estimate = planning panels × panel cost + posts × post cost.
  1. Apply the formulaFenceable length = total run − gate openings × gate width. Base panels = ceiling(fenceable length ÷ panel width). Planning panels = ceiling(base panels × (1 + allowance percent ÷ 100)). Posts = base panels + 1 for an open run, or base panels for a closed loop. Material estimate = planning panels × panel cost + posts × post cost.14 panels/bays23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate

Your live breakdown

Current inputs in the calculation

These values come from the controls above and update when the calculator changes.

Total fence run
24 metres
Enter the total measured fence line, or the perimeter after subtracting any sections you are not fencing.
Panel or bay width
1.8 metres
Use the supplier panel width or the planned spacing between posts.
Gate openings
1
Gate openings reduce the number of fence panels but still need posts at their sides in most layouts.
Average gate width
1 metres
End-post layout
0 0=open run, 1=closed loop
Use 0 for a straight/open run needing one more post than bays; use 1 for a closed loop where bays and posts usually match.
Allowance
5 %
Optional planning allowance for cuts, damage, layout changes and supplier rounding.
Cost per panel/bay
45 currency
Cost per post
18 currency

Resulting answer

14 panels/bays

23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate

Answer
14 panels/bays
Live support
23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate

Assumptions used

What this answer assumes

Best for a first material takeoff. Confirm post layout, gates, corners and local requirements before ordering.

  • All lengths use the same unit: metres in the default page copy.
  • Gate openings are subtracted from fence-panel length before panel count is rounded up.
  • The post count is a planning estimate; corner posts, gate posts, braces, terminals, slopes and local installation rules can change the real count.
  • Allowance is applied to panels/bays only, not to posts or gates.
  • The cost result is material-only and excludes labour, delivery, concrete, fixings, permits, demolition, terrain work and taxes unless those are included in the entered prices.

Master’s Tip

How to use the result well

Master’s Tip: mark corner, gate and terminal posts on the printed report before ordering. A fence estimate fails fastest when a clean panel count is mistaken for a full site set-out.

Printable record

What belongs in the saved calculation

Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.

Total fence run
24 metres
Enter the total measured fence line, or the perimeter after subtracting any sections you are not fencing.
Panel or bay width
1.8 metres
Use the supplier panel width or the planned spacing between posts.
Gate openings
1
Gate openings reduce the number of fence panels but still need posts at their sides in most layouts.
Average gate width
1 metres

Visual grid

This result measures part of the space you live in

Length, area, volume and material estimates are grid problems too: measure the space, account for edges and allowances, then turn the pattern into a number you can use.

Micro-timehours, minutes, shiftsHuman scaledays, weeks, projectsMacro-timemonths, years, calendars
Measured output14 panels/bays

Space calculations turn a real surface, room, run or volume into cells, edges and allowances that can be quoted, ordered or checked.

CalculationTime

Fence Calculation Report

Report date:

14 panels/bays23 m fenceable length after 1 m gate openings · 14 posts (open run) · 882.00 material estimate

Inputs

Total fence run
24 metres
Panel or bay width
1.8 metres
Gate openings
1
Average gate width
1 metres
End-post layout
0 0=open run, 1=closed loop
Allowance
5 %
Cost per panel/bay
45 currency
Cost per post
18 currency

Method

Fenceable length = total run − gate openings × gate width. Base panels = ceiling(fenceable length ÷ panel width). Planning panels = ceiling(base panels × (1 + allowance percent ÷ 100)). Posts = base panels + 1 for an open run, or base panels for a closed loop. Material estimate = planning panels × panel cost + posts × post cost.

  1. A 24 m fence run with one 1 m gate leaves 23 m of fenceable length. At 1.8 m per panel, 23 ÷ 1.8 = 12.78, so the base count rounds up to 13 panels. A 5% allowance keeps the order at 14 panels. For an open run, posts are 13 + 1 = 14. At 45 per panel and 18 per post, the material estimate is 14 × 45 + 14 × 18 = 882.

Assumptions

  • All lengths use the same unit: metres in the default page copy.
  • Gate openings are subtracted from fence-panel length before panel count is rounded up.
  • The post count is a planning estimate; corner posts, gate posts, braces, terminals, slopes and local installation rules can change the real count.
  • Allowance is applied to panels/bays only, not to posts or gates.

Notes

Use this space on the printed report for client, supplier, classroom, job-location, measurement, quote or approval notes.

Source: https://www.calculationtime.com/calculators/fence-calculator

This report shows the calculation inputs, formula, assumptions and result for review. It is not legal, payroll, tax, engineering, financial or academic advice unless a qualified professional confirms the applicable rules.