Matrix Labor/Grid Labor/Variable Labor are all great, but unfortunately the simple "escalation" grids dont have much of an affect either way.
Both replies thus far discuss the BELL GRID - an old standard created about 20 years ago.
The challenge with a BELL GRID or the ORIGINAL SCALE UP FOREVER GRIDS is that the assumption is that you perform each 10th interval an equal number of times over a time period.
EXAMPLE:
Assume an AGGRESSIVE ESCALATION on each hour:
1.0 hour is $100 labor dollars ($100 ELR)
2.0 hours is $210 labor dollars ($105 ELR)
3.0 hours is $330 labor dollars ($110 ELR)
4.0 hours is $460 labor dollars ($115 ELR)
5.0 hours is $600 labor dollars ($120 ELR)
If you performed 5 job lines (a 1hr, 2hr, 3hr, 4hr and 5hr)once each then in TOTAL:
$1700 Labor Dollars / 15 Hrs = $113.33 ELR
Sounds great right?
HOWEVER... in the real world of EVERY SHOP, there are considerably more jobs performed than this, and MOST of them are less than 3.0 hrs (this is a per line number), so for the "grid" to escalate up forever or even to "peak" at the 7.5-8.0 mark, you have to accept that you don't realize much of the HIGH ELR you would have at 8.0 hrs simply because you dont have that much "FREQUENCY" of repairs at that flat rate interval.
If you were able to run a FRH Frequency Report (google it) you will discover that in most shops, and likely yours too, 90% of the "GRIDABLE" work you perform is less than 3.0 hrs, which means, unless you're grid is aggressive at those "lower" flat rate intervals... you wont reap many benefits from your Old-Fashioned Grid.
These Old-Fashioned Grids are effectively just reversed versions of the old-fashioned Parts Matrix structures - if you REALLY are serious about affecting change to your Gross Profit with Labor Grids - You need to look at what will work TODAY in a Service Dept.
If you want some help - contact me!
[This message has been edited by Tyler Robbins (edited 01-07-2009).]