---
title: Lightning Protection Takeoff
tags:
  - occupational/takeoff
  - status/draft
  - type/guide
up: "[[takeoff-scripts]]"
aliases:
  - lightning protection takeoff
---
# Lightning Protection Takeoff

> [!info]
> See [[lightning-protection]] for more on lightning protection systems.

> [!important] ConEst Scope
> Lightning protection takeoff may or may not be necessary,
> see proposal on [[pdi-bpm|BPM]].
> Only takeoff if LP is included in the base bid.

### Subcontractors

Find lightning protection subcontractor quotes on BPM,
search for direction on downlead counts, total length, and conduit size

> [!example]
> Contractor to furnish 1,980' of 1" PVC conduit and pull string

> [!tip]
> While you have the quotes open,
> put the costs in the Subcontractors tab in [[accubid|Accubid]].

If no quote is available:

* **Downlead locations** = building corners + additional locations
  such that downlead spacing is not greater than 100ft
  * Minimum 10 locations for High-rise

* **Total downlead conduit length** = building height * downlead locations

* **Conduit size** = 1-1/4"

### Takeoff

> * `Area` = "01 - Lightning Protection Building"
> * `Phase` = "Building - BOH, Storage & Common"
> * `System` = "LPT - Lightning Protection"
> * `BidItem` = "3 - Building"

* Takeoff: `COMMON ASSEMBLIES`/`PDI EMPTY CONDUIT`/`PVC ASSEMBLIES`/`* CONDUIT - PVC40`
  * **Length** = total downlead conduit length
  * **Count** = downlead locations

  * Add item: `ITEM DATABASE`/`BOXES & CABINETS`/`JUNCTION BOXES AND INDUSTRIAL CABINETS`/
    `BOXES - HNGD CVR - PAINTED STEEL - NEMA  1`/` 6x  4x  4" BOX HNGD CVR - NEMA  1`