×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Design - Quote

Design - Quote

Design - Quote

(OP)
I have been asked to put in a quote for a project where I will be required to carry out design (heatload calculation etc) as well as drawings. It will be a very basic system. There will be a couple of roof mounted toilet exhaust fans also.

The client has indicated underfloor ducting. I believe there will be 2 units required.

There are 2 buildings.

Building 1 is 3713 square feet (345 square meters).

Building 2 is 7750 square feet (720 square meters).

I was wondering if there is a basic formula to getting a more accurate quote? Say "X" amount of square feet (or square meter) per hour in design?

I am a bit torn over how many hours to put down in my quotation...

Thanks for your help,


RE: Design - Quote

Use RSMeans to get the mechanical square foot cost.  Determine the cost of the installed system in your area.  Typically, the design cost for a PE to supervise the design and stamp the drawings is around 6%.  10% if construction services are provided.  

RE: Design - Quote

(OP)
Thanks Zapster for your reply. The only thing that will be difficult is finding out the final cost once installed. There are a few variables there (cheap labour, cheap materials etc).

RE: Design - Quote

AF2,

RSMeans is updated every year with factors for project location and most of the variables are accounted for in the yearly realease. It's worth the $99 to get the book because, with a little study and work you can get the ballpark estimate you need from the publication.

GB

RE: Design - Quote

rules of tumb:

60 hours a drawing

40 hours for spec

means books are way off

RE: Design - Quote

Airforce2

I would recommend for smaller project that 6% and 10% stated above not be used.  For small project the overhead of setting up drawings, files etc is high compared to larger project.
The actual % of construction value may appoach 20%.
I think there is a lot of free engineering occuring on small project it is hard to even break even with the amount of time you spend on the job.  There a no large peices of equiment to offset design time.

CME's hours per drawings may work better for you if this is a smaller project.
Greg

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources