We’ve made some slight deviations as well.
First, when it comes to specifications and project manuals, we have made the decision to use only six digits, and NOT to use eight (regardless of the pre-assigned ARCOM number, number of narrowscope sections, etc.). We have also made this a requirement that our consultants do the same. We DO, however, utilize eight digits for file naming purposes, to help differentiate variations between the same narrowscope sections.
Some examples:
06 41 13 Wood-Veneer-Faced Cabinets
.01 Maple
.02 Mahogany
.03 Red Oak
06 42 16 Wood-Veneer Paneling
.01 Maple (Reserved)
.02 Mahogany
.03 Red Oak
.04 Makore
.05 Bubinga
Second, we have occasion to use and specify products for which we could not find assigned numbers. So we assigned our own:
-
00 52 76 - Sales Tax Assignment Contract
(interestingly, the words “Tax” and “sales tax” do not appear in the key word index. The ‘76’ above is derived from 00 62 76 - Sales Tax Form, in the hope of maintaining some sort of consistency).
-
07 26 26 - Fluid-Applied Vapor Barrier
-
01 62 14 - Bulk Purchasing Vendor List
01 62 15 - Vendor List for Interior Finishes
-
03 35 20 - Stained Concrete
-
04 42 29 - Thin Stone Veneer
-
07 22 19 - Sloped Roof Deck Insulation
(MasterSpec calls it “composite nail base insulated roof sheathing” and currently locates it 06160).
-
08 31 23 - Floor Access Door (or hatch).
-
28 26 14 - Infant Security System
Some other anomolies discovered / liberties taken:
00 65 14 - Lead and Asbestos Exclusion Affidavit
03 30 35 - Under-Slab Sheet Vapor Retarder
06 41 19 - Architectural Cabinet Hardware
06 82 13 - Glass-Fiber-Reinforced Plastic Paneling
06 82 56 - Ballistics-Resistant Fiberglass
08 39 16 - Smoke Containment Curtain
(such as that manufactured by Smoke Guard, automatic roll-down with magnetic seals for front of elevator entrances)
09 51 19 - Acoustical Wood Panel Ceilings
10 13 03 - Illuminated Directories
10 73 49 - Manufactured Gazebo
12 22 14 - Fabric Valences
12 24 17 - Cellular Shades
13 49 33 - Electromagnetic Shielding
And third, we feel there may be some slight idiosyncracies in the MF '04-assigned numbers that - to us - just seem a bit awkward. For example:
08 11 15 Severe Windstorm Hollow Metal
(instead of 08 11 13.XX)
08 14 23 Metal Clad Wood Doors
08 14 24 Plastic-Laminate-Faced Wood Doors
08 14 25 Hardboard-Faced Wood Doors
(instead of 08 14 23.XX)
08 35 14 Accordion Fire Doors
(instead of 08 35 13.13)
09 65 16 Sheet Vinyl Floor Coverings
09 65 17 Heat-Welded Linoleum Floor Coverings
09 65 18 Sheet Rubber Floor Coverings
But the one that seemed the least accommodating and created the most difficulty for us was the Toilet Compartment numbers. We have sections for the following:
10 21 13 - Toilet Compartments
10 21 13.13.01 - Metal Toilet Compartments w/ Baked enamel finish
10 21 13.13.02 - Stainless Steel Toilet Compartments
10 21 13.16 - Plastic Laminate Toilet Compartments
10 21 13.19.01 - Solid Phenolic Toilet Compartments
10 21 13.19.02 - Solid Plastic Toilet Compartments
10 21 13.19.03 - Solid Surfacing Material Toilet Compartments
10 21 13.40 - Stone Toilet Compartments
And in the future, we may have others.
I feel the differences in materials should have been handled at the Level 3 number instead of at the Level 4 as shown in MF '04. Then the Level 4 numbers could be used to differentiate between ceiling-hung or floor supported, finishes, manufacturers, etc. But as it stands, if I have both solid phenolic and SSM partitions on a project, I’d have to use Level 5 numbers to differentiate between the two (or combine them into one Level 4 section). And with 10 21 16 taken, there really is no room for expansion. So even though we may use the MF numbers for file naming, when it comes time to publish the Project Manual, we’ll be using
10 21 13 - Toilet Compartments
10 21 13 - Metal Toilet Compartments w/ Baked enamel finish
10 21 13 - Stainless Steel Toilet Compartments
10 21 14 - Plastic Laminate Toilet Compartments
10 21 14 - Solid Phenolic Toilet Compartments
10 21 14 - Solid Plastic Toilet Compartments
10 21 14 - Solid Surfacing Material Toilet Compartments
10 21 15 - Stone Toilet Compartments
So for a project with two types of partitions, I use 10 21 13 and 10 21 14; for projects with three types, I use 10 21 13, 10 21 14, and 10 21 15. (Either scenario results in a probable re-numbering of at least one section, regardless of the assigned number.) For projects with more than three types, I go back to the interior designers and ask them to rein it it!
With the last 10 21 XX number being only 23, it seems there was an opportunity to give some more cushion between the 13 and 16, and between 16 and 23 number assignment, to provide for more types and applications.
I really wish they had taken that into account.