estimating test 1

does not have these regulations and often owner will not advertise but may send out invitations to bid •Arch/engineering firm may put bid out to their subscribers

private construction

owner is acting as his own general contractor although he may hire one as well

separate contract

typically general contracting, assumes responsibility for entire scope of project

single contract

-take off group of items at once (assembly) -easily viewed in different formats -quick changes all advantages of

specialized estimating software

-Easy to use and readily adapted to company's existing estimating style -can make simple decision with IF functions - simple databases can aslo be incorporated. all advantages of what

spreadsheets

These are used by a substantial amount of general contractors as their primary estimating software. Can be as simple as a sheet designed to add up quantities to an extremely complex spreadsheet tools designed for estimating •Excel •Google Docs •Corel Quattro Pro

spreadsheets (computer estimating)

Most common, quickest estimate

square foot

Types of estimates

square foot, assembly, detailed, model, parametric

a payment bond, performance bond, same bonds as GC.they have to pay their people.

subcontractor bond

a three party written agreement to guarantee compliance, payment, or performance of an act.

surety bond

•Autodesk Quantity Takeoff •On-Screen Takeoff •Trimble Paydirt

takeoff software

•Can use "layers" to keep track of where quantities came from •Drawings can be delivered electronically Advantages of

takeoff software

True or False: to survive in todays environment, estimators must be computer savvy

true

-Home office overheard -job overhead

two broad types on overhead

best source of information for bidding

your own historical data, other sources are rsmeans

Changes to the bid package specified by architect/engineer AFTER bid is put out but BEFORE is opened. Becomes part of contract so dont ignore the addena, could cost due to change order.

Addena

what contracts are needed for bidding

Agreement, General Conditions, Tech Specs, Working drawings, Specifications, Addenda

If home office overhead is $100,000, how do you figure if you do $500,000 vs. $10,000,000 in annual sales?

Annual estimated home office costs / estimating annual revenue 100,000/ 500,000 = 20% allocated general overhead 100,000/ 10,000,000= 1%

length x width

Area of a rectangle

3.14 x radius squared

Area of circle

Does "5D" modeling •4D is scheduling "if used" •5D incorporates costs and quantities into a 3D parametric model potential problems are incomplete model will obviously be an incomplete estimate, also models do not address waste

BIM

Autodesk, AutoCAD, Civil 3D •Autodesk Revit •GraphicsoftArchiCAD •Sketchup

Building information modeling (BIM)

masterformat-standardized format for organizing specifications 50 divisions (0 thru 49) Many divisions are empty (reserved for future use) Drywall is in divisions 9 - Finishes

Construction Specifications Institute (CSI)

Salaries temp buildings and enclosures photos, surveys environmental conditions

Job overhead

whichever one costs less money and maximizes my profits

Lease vs. buy vs. rent

-Invitation to bid -instructions to bidders -Bid (or proposal) form -Form of owner/contractor agreement -form of bid bond -forms of performance/payment bonds -General conditions of the contract (14 topics included in AIA) •Supplementary general conditions •Specifications (technical specifications)

Project manual sequence.

must conform to strenuous regulations •Usually public places and on the internet

Public construction

(height x base)/2

area of triangle

more common for single trade estimates and electricians or plumbers would use it

assembly

-Faster -track takeoff quantities

benefits of computerized estimates

ensures that if contractor is awarded bid within the time specified, the Contractor will enter into contract, and provide all other specified bonds, nothing else.

bid bond

includes the determination of the quantities and cost of everything used to complete the project

detailed estimate

office rent utilities supplies depreciation: computers, office equipment

home office overhead

uses computer models to estimate cost based on series of questions

model estimate

-Cost per hour to rent -fuel -oil -filters -repairs wages and mobilization (not apart of equiment)

name 4 cost of equipment

also referred to as Labor and material bond, guarantees the payment of contractor's bill for labor and materials used. liability protection for owner with claims against project

payment bond

guarantees the owner that the contractor will do the project according to documents and specifications usually 100% of contract price, this allows owner to finish the job if prime contractor fails to do so

performance bond

-can create false sense of accuracy -estimator must be very experience and tech savvy to know when something doesn't make sense

pitfalls of computerized estimates