Estimating- RS Means

Question 1

General Facts of RS Means Cost Data

Answer 1

• based on CSI & CSC MasterFormat Divisions
• for diff types of constructions methods
• labor costs: based on avg 30 major Canadian cities, union rates for labor applied

Question 2

Unit Cost Pages

Answer 2

1. Line Numbers
2. Descriptions
3. RS Means Data
4. Reference - more info about it
5. Crew - labor/equipment needed to accomplish each task
6. Daily Output - amount of work crew can do in 8hr workday
7. Labor-Hours - amount of labor required to perform 1 unit of work
8. Unit of Measure
9. Bare Cost - materials, labor, equipment for 1 unit of work. no markup here
10. Total Unit Cost - includes overhead and profit that installing contractor (SC) will charge customer (GC)

Question 3

City Cost Index

Answer 3

• converts national avg cost to local cost
• Cost in Toronto = ($ national avg cost) X (Toronto cost index)/100

Question 4

Crew Table

Answer 4

• composite crew
• assumes labor uses equipment for entire duration
• cost per labour-hour

LOOK AT SLIDES FOR EXAMPLE CALCULATIONS OF EVERYTHING

Question 5

Square Foot Project Size Modifier (SFPSM)

Answer 5

X = Project size modifier, function of (Q2/Q1)
Q1 = Typical given size of facility in SF (size factor)
Q2 = Size of new facility in SF
C1 = Known median given cost of facility per SF
C2 = Size adjusted cost of new facility per SF

C2 = X * C1
- get Q1 from table
- calculate Q2/Q1
- get X
- calculate C2

SEE LEC 9 PG 36 ONWARDS