---
title: Unit Takeoff
tags:
  - occupational/takeoff
  - status/draft
  - type/guide
up: "[[takeoff-scripts]]"
---
# Unit Takeoff

> [!info]
> See [[multi-family-dwellings]].

[[pdi-building-types]]

## Prerequisites

> [!important]
> Complete [[pre-takeoff-research]],
> including [[wiring-method-selection]] and [[wiring-device-research]],
> before beginning takeoff.

1. [[pdi-conest-project-setup#Create Unit Matrix|Create Unit Matrix]]
2. [[accubid-setup#Create Unit Typicals|Create Unit Typicals]]

## Takeoff

> [!tip] Preparing for Unit Takeoff
> Units generally have very little variation.
> It is usually best to copy-paste takeoffs
> rather than re-build them for each unit.

1. Load Center
2. General assemblies
    1. Water Heater
    2. HVAC
3. Laundry
4. Kitchen
5. Bathroom
6. Low Voltage
7. Lighting Fixtures
8. Lighting Control

> [!tip]
> It may be more efficient and neat to not copy switches,
> instead keeping the switch assembly list open
> and creating them new for each unit,
> since the types required can vary greatly between units.

> [!tip]
> Consider using a "Typical - All Units"
> for scope identical between all unit types.
> * WAP Outlets
> * MSDE's

### Load Centers

* `System` = "EL - Electrical"

| Rating  | Assembly                                                                           |
| ------- | ---------------------------------------------------------------------------------- |
| <= 100A | `DIST PANELS & UNIT LOAD CENTERS`/`UNIT LOAD CENTERS - ...`/`... UNIT LOAD CENTER` |
|  > 100A | `DIST PANELS & UNIT LOAD CENTERS`/`UNIT LOAD CENTERS - ...`/`... BREAKER PNL`      |

Include terminations per [[switchgear-takeoff]].

### Fixtures

[[fixtures-takeoff]]

### Shade Control

### VTAC Units

Used in lieu of individual split systems.

### Dedicated Circuit Receptacles

> [!quote] [[joel-jansen]] 2025-11-11, pp.
>
> For N5-15R/N5-20R receptacles serving fixed equipment such as:
>
> * refrigerators
> * gas ranges
> * microwaves
> * clothes washers
> * hood fans
>
> match the receptacle configuration shown on the plans
> (i.e. simplex to simplex, duplex to duplex).

### Air Sealing

* LEED Silver
* Mid-Atlantic jobs
* "Draft Proof Box"

`ITEM DATABASE`/`BOXES & CABINETS`/`BOXES - VAPOR`/`...`

`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`GENERAL  ASSEMBLIES - METAL STUD`/`UNIT MISC ITEMS - MC - ADJUST ACCORDINGLY`

### Dishwasher/Disposal Receptacles

> [!quote] [[joel-jansen]] 2026-01-12 in reference to [[woodbrook]] (pp.)[^1]
> Even when drawings show 2 separate duplex receptacles,
> use `DW & DISPOSAL DUAL CIR - ...`,
> which includes only one receptacle.

[^1]: [[2026-01-12_10-42-30#Unit Dishwasher/Disposal]]

### Disposal Switches

??? confirm
If not air switch (check ID's)
add single pole switch shown.

### Islands

Use (1) `SLAB / DECK` receptacle for every 2 circuits in the island.

`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`... RECEPTACLE TAMPER RESISTANT ...`/`... (METAL STUD) - 20' 3/4" PVC, ENT, 3#12 THHN`

Use standard MC assemblies for remaining devices.

### Bidet Toilets, Whirlpool Baths, etc.

`COMMON ASSEMBLIES`/`MECHANICAL CONNECTIONS (UP TO 100A)`/`PVC - LT NM FLEX (CARFLEX)`/`20A 1PH MECH CONN (100') 3/4" PVC 3#12 - CARFLEX`

### "High-Lows"

Empty in-wall pass through
from credenza location to behind television location.

`COMMON ASSEMBLIES`/`TELECOM SYSTEMS`/`UNIT DATA  - TELECOM`/`HIGH-LOW - TV SCOOP 1 1/2" ENT - NO CABLE`

> ![Eaton 35M2W|250x250](https://www.eaton.com/mdmfiles/PDM19433863/35M2W_C/500x500_72dpi)
>
> _Eaton 35M2W_

### Doorbells

???

`HANDICAP DB W/SINGLE HORN/STROBE - 12/2c MC CABLE`

### Telecom Homeruns

#### Residential

Included in MSDE.

#### Key

`COMMON ASSEMBLIES`/`TELECOM SYSTEMS`/`BOH AMENITY ASSEMBLIES`/...

Adjust cable length as needed.

### Fire Alarm Devices

#### Residential

* `System` = "EL - Electrical"

##### Smoke Detectors & CO Detectors

For smoke detectors and CO detectors where 120V (most common):

`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`GENERAL  ASSEMBLIES - METAL STUD`/`UNIT SMOKE DETECTOR W/ CO DETECTOR ...`

For ADA units:

`COMMON ASSEMBLIES`/`UNITS - MC CABLE ASSEMBLIES`/`GENERAL  ASSEMBLIES - METAL STUD`/`UNIT SMOKE DETECTOR / VISUAL SIGNAL ...`

##### Additional Signaling Devices

* `System` = "FA - Fire Alarm"

`COMMON ASSEMBLIES`/`FIRE ALARM & DAS SYSTEMS`/`INDICATING DEVICES WITH WIRE - FREE AIR`/`INDOOR HORN STROBE - FREE AIR`

#### Key

* `System` = "FA - Fire Alarm"

`COMMON ASSEMBLIES`/`FIRE ALARM & DAS SYSTEMS`/`... DEVICES WITH WIRE - FREE AIR`

[[fire-alarm-takeoff]]
