labor units

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mannyb

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Florida
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Electrician
This is for educational purposes only. I found a couple threads on here that i find interesting about labor unit.


The work is divided into 3 levels of difficulty: for ROMEX
Minimum Medium Maximum
14/2: .012 .015 .018
12/2: .012 .015 .018
10/2: .012 .015 .018
14/3: .012 .015 .018
12/3: .012 .015 .018
10/3: .012 .015 .018 The thread mention residential so we will use residential. i understand what the 14/2 is but whats .012 .015 .018 ?
 
mannyb said:
This is for educational purposes only. I found a couple threads on here that i find interesting about labor unit.


The work is divided into 3 levels of difficulty: for ROMEX
Minimum Medium Maximum
14/2: .012 .015 .018
12/2: .012 .015 .018
10/2: .012 .015 .018
14/3: .012 .015 .018
12/3: .012 .015 .018
10/3: .012 .015 .018 The thread mention residential so we will use residential. i understand what the 14/2 is but whats .012 .015 .018 ?
Click to expand...

Maybe you multiply those number by the number of feet of cable that will tell you how long it will take for the installation???

100' of cable x .018 = 1.8 hours

I don't know I am just guessing.
 
edward said:
Maybe you multiply those number by the number of feet of cable that will tell you how long it will take for the installation???

100' of cable x .018 = 1.8 hours

I don't know I am just guessing.
Click to expand...



Yes Sir. Im only asking. so do you think the .018 js the labor hr?? I saw a couple numbers where a 100count 30-4x4 square metal boxes is 18 on not .018. So would you guess it would be 18hr/100c x 30 is ??


i know how to do math, just trying to see if the 4x4 box is really a predeterniined labor unit is 18hrs for 1 j box. i got these numbers from Mike Holt i saw a friend had. looks realy good buy.
 
Those numbers for the wire are labor per foot, as someone above had guessed.

We use .2 for a 4x4 j box & .05 for the blank cover. So that is 1/4 hour to install a J box with cover. Wirenuts, fittings add additional time :p

We have been using Mike's labor units for 15+ years and they are eerily correct.
We have learned to never second guess the labor estimate.
 
0.012 - 14/2
0.015 - 14/3
0.015 - 12/2
0.017 - 12/3
0.017 - 10/2
0.02 - 10/3
0.02 - 8/2
0.025 - 8/3
0.025 - 6/2
0.027 - 6/3

This is what we use, and no 14/2 is not the same as 10/3
 
cpinetree said:
Those numbers for the wire are labor per foot, as someone above had guessed.

We use .2 for a 4x4 j box & .05 for the blank cover. So that is 1/4 hour to install a J box with cover. Wirenuts, fittings add additional time :p

We have been using Mike's labor units for 15+ years and they are eerily correct.
We have learned to never second guess the labor estimate.
Click to expand...


I left for work after i posted this question and now getting around to ask another question. I also borrowed book

Do you have a mike holts guide to electrical estimating book? I get those numbers mean labor. Im just wondering why it says 18 hrs for 4x4 boxes, 20 hrs for swtiches, 19hrs for receptacles. The book shows MEETING ROOM LABOR UNITS in study guide

description qty hrs unit ext hrs calculation
4x4 metal box 30 18 100 5.4 18hrs/100 x 30


same for switches, receptacles. i was looking for something closer to your numbers to be right. Is there something Im missing ?
 
mannyb said:
I left for work after i posted this question and now getting around to ask another question. I also borrowed book

Do you have a mike holts guide to electrical estimating book? I get those numbers mean labor. Im just wondering why it says 18 hrs for 4x4 boxes, 20 hrs for swtiches, 19hrs for receptacles. The book shows MEETING ROOM LABOR UNITS in study guide

description qty hrs unit ext hrs calculation
4x4 metal box 30 18 100 5.4 18hrs/100 x 30


same for switches, receptacles. i was looking for something closer to your numbers to be right. Is there something Im missing ?
Click to expand...

It is the same thing just per 100 instead of per each.
18hrs / 100 boxes = .18hrs per box (We use .2hrs per box, Our numbers have been tweaked through the years)

If you are making your own spreadsheet (I did) just do the math and plug in the per each, or use a formula in the cell to do the math for you:happyyes:
 
cpinetree said:
It is the same thing just per 100 instead of per each.
18hrs / 100 boxes = .18hrs per box (We use .2hrs per box, Our numbers have been tweaked through the years)

If you are making your own spreadsheet (I did) just do the math and plug in the per each, or use a formula in the cell to do the math for you:happyyes:
Click to expand...


I dont want to beat a dead horse. but basically the 18hrs or .18 hrs is the a labor unit thats either in NECA labor units or a number that is develop by ones experience and knowledge?? correct?? i was just wondering how on got 18hrs. Thanks for information. I will play around with numbers just to get an idea of how it works from examples i already know
 
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