CALC-001 · DRAWING NO. F-001 · REV A
Fencing calculator.
Drafted to scale · cited sources · honest numbers
Enter total fence length, height, and type. The calculator returns post count, rails, pickets (or rolls/panels), and a material-cost range. Accounts for gates, corners, and post spacing by fence type.
◈ DRAFTING PANEL · FENCING TAKEOFF · N.T.S.
SHEET F-001 · REV A
Redline · scope notice Material count for level ground. Does not calculate post footing concrete, fastener counts, or slope adjustments. Stepped and racked fencing affect post lengths and bottom gap. Pool enclosures are life-safety code: verify with local AHJ.
Note 01 · Field Procedure
How to measure the fence line
- Mark the fence line with stakes and string. Measure total length in feet. Include all straight runs and turns. A tape measure or wheel is accurate; pacing is not.
- Decide fence height. Standard privacy fence is 6 ft. Picket fences run 3-4 ft. Pool enclosures require 48 in. minimum (IRC Appendix G / AG105).
- Count gates: each gate needs two dedicated posts. Count corners: each 90-degree turn needs a terminal post. Both add to the post total beyond the line-post formula.
- Call 811 before digging. Free utility locating is required by law in all 50 states. Wait for the locate markings before setting posts.
Note 02 · Equation
The formula
posts = ⌊L ÷ spacing⌋ + 1 + 2G + C
Ltotal fence length in feet
spacingpost spacing: 8 ft wood/vinyl, 10 ft chain link
Ggate count (2 posts per gate)
Ccorner count (1 terminal post each)
Wood pickets use 5.5 in. actual face width, not 6 in. nominal. Privacy fence: 0 gap. Picket fence: 2.5 in. gap.
Note 03 · Sanity Ranges
Fencing by project size
| T | Use case | Notes |
|---|---|---|
| ~50 lf | Side yard / garden enclosure | 7-8 posts. Weekend project for one person. |
| ~100 lf | Backyard privacy fence | 13-14 posts. Most common residential job. |
| ~200 lf | Full perimeter, quarter-acre lot | 26-27 posts. Budget for post-hole auger rental. |
| ~500+ lf | Acreage / farm fence | 60+ posts. Consider tractor-mounted auger and bulk material pricing. |
Note 04 · References
Sources
Authorities cited on this sheet
- ASTM F567-23: Standard Practice for Installation of Chain-Link Fence · Specifies maximum 10 ft post spacing for residential chain-link fencing. Defines terminal post (end, corner, gate) vs. line post requirements.
- IRC Appendix G / ISPSC: Swimming Pool Barriers · Pool barrier requirements: 48 in. minimum height, self-closing/self-latching gate with latch 54 in. from ground. Appendix G adopted by local jurisdiction. Life-safety code.
- Call Before You Dig (811) · National utility-locating service. Required by law in all 50 states before digging post holes. Free for homeowners. 2-3 business day lead time.
PROJ MATERIALFOREMAN
SHT F-001 / 014
REV A · 2026-04-19
DRAWN MF