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  • resources for job estimation?

    Hello all,
    I've been searching for literature on standard costs for estimating bids on welding/fabrication jobs. I found very little. I'm developing my on reference guide based on actual job production but this is an on going record. Can anyone refer me to an existing guide/calculator?
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  • #2
    I don't know of any guides. I just figure each job individually. I figure up the materials costs, add in any unusual consumables costs (special electrodes or gas, cutting drilling painting or bonding stuff, etc needed to do the particular job) then estimate the labor time and come up with a total. For fence and railing, you can go by dollars per foot, anywhere from $50 to $150 per foot, depending on complexity/cost of the design/materials and difficulty/location of the project. Basic tube steel and pickets is cheaper per foot than lots of scroll work, stainless, or aluminum.
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    • #3
      http://www.esabna.com/EUWeb/AWTC/Lesson9_1.htm

      You can make an Excel worksheet template to calculate all of the costs.
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      • #4
        Thanks!

        Thank you Broccoli 1,
        That link is a great resource!
        Miller TrailBlazer 251NT
        Miller HF-250-1
        Miller Maxstar 150slt
        Miller ft peddles and thumb wheels
        Miller MM 212
        Lincoln power mig180c (two of)
        MM 252
        Miller Elite Dig
        Miller Pro-Hobby

        Comment


        • #5
          what kind of job are you bidding on. or do you want to find a program for future jobs?

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          • #6
            Originally posted by m.k.swelding View Post
            what kind of job are you bidding on. or do you want to find a program for future jobs?
            Apologizes for the delayed response.
            Currently I have an eclectic array of jobs. I do fairly well in estimating actual fab time and material costs. Have fell short in allowing design and logistics time involved. What I need is some sort of base line in calculating the cost of consumables. For ex..power consumption, filler wire/rod, grinding discs, shield gases, oxy/act, plasma usage cost, allowance for over head. The majority of shop work I do is mig but includes some stainless tig, some carbon to stainless(309L). I also do some site jobs, portable. Recently I've had small but meticulous jobs, requiring concept designs of fixtures and process to achieve desired end results. I'm shooting in the dark trying to allow for cost variables.
            Miller TrailBlazer 251NT
            Miller HF-250-1
            Miller Maxstar 150slt
            Miller ft peddles and thumb wheels
            Miller MM 212
            Lincoln power mig180c (two of)
            MM 252
            Miller Elite Dig
            Miller Pro-Hobby

            Comment


            • #7
              Simple project estimate

              Unless there are specialised equipment and consumables involved, I use the rule of "3". When looking at what Framing Carpenters charge by the square foot to just do the basic framing, this rule of 3 is pretty much on par.
              Say that you are making simple frames or carts out of angle iron or channel. You purchase $100 in angle and channel iron. Then the total job is charged out at $300. This covers a saw blade, grinding wheel ... If said customer wants to supply the materials, then I would call the local steel supplier for the price of material (and using this example of they quoted me $100 worth of steel) then charge $200 for my fabrication. If it gets too complicated or say there is stainless steel pipe that needs to be purged, special jigs and fixtures to be made, then it becomes complicated and I would have to go by Time and material.
              On simple aluminum fab such as in the first example (the last time I priced Aluminum, it was 4 times the price of steel), I might consider a 1 to 1 on the bid.
              I worked at a shop once, where most projects were bid by the ton. If I remember correctly it came out to 87 cents a pound...

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              • #8
                Hmmmmm.....
                "Have fell short in allowing design and logistics time involved."
                This is the BIG problem when bidding a job from "Bar Napkin Blueprints".
                If you are going to be a respectable business, then one must charge an appropriate fee for any and ALL services. Bid in an acceptable "engineering/drafting fee"

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