Historically, abbreviations were used frequently in construction documents as part of standard practice. Section 1 sets out abbreviations. With regard to surface roughness, it means that the heights of the individual microscopic peaks and valleys shall be averaged together via RMS to yield a measurement of roughness. STANDS4 LLC, 2020. example CAD. There is a standard way of bar notation that should be followed according to the drawings. example CAD. Seen occasionally in older drawings instead of repeating a given dimension. Abbreviations for ". A general note applies generally and is not called out with flags. Flats and reversals (falling within the dimensional tolerance zone) are tolerated unless "CR" (controlled radius) is explicitly specified. An order from the engineering department (to be followed by the production department or vendor) overriding/superseding a detail on the drawing, which gets superseded with revised information. CF - Concrete floor. June 4, 2013 / Posted in: Builders, Dealers, DIY, Framers. Get instant explanation for any acronym or abbreviation that hits you anywhere on the web! riser equipment equipment no. Construction Glossary of Building Terms ABUTMENT That part of a pier or wall either end of an arch, beam, or bridge which resists the pressure of a load. Thus material condition (, Federal Stock/Supply Code for Manufacturers. . It should be very clearly shown in the drawings to avoid mistakes and confusion. Section 1 sets out abbreviations. AS. The definitions below are terms used by CSQ and within the industry; they are listed in alphabetical order. STANDS4. See also. For measurements of eccentricity and other deviations from nominal geometry, For an explanation of "type" abbreviated as "TY", see the example given at, Other features share the same characteristic. An FoS is a feature that can have size associated with it, usually involving the opposition of two surfaces (e.g., the two diametrically opposite sides of a hole wall; the two opposite walls of a slot or flange). A prefix for standard hardware (catalog hardware) ID numbers. However, any other abbreviations that are used in the drawings must be listed and explained in the LEGEND on each drawing that such abbreviations are used. Abbreviation: a shortened form of a word or phrase.Example: DIA for diameter. Many abbreviations are common and are regularly used in the drawings but few of the abbreviation are new and unique for a particular drawing. All plans should feature a north point to show the orientation of the diagram – and where possible, it’s preferable for all of the diagrams being used (e.g. Most engineering drawings have a notes list, which includes both general notes and flag notes. An engineering design is usually defined by many individual detail drawings which combine to form an assembly drawing. SABC, symbols and abbreviations for building and construction : a collection of abbreviations, acronyms and letter symbols extracted from current Australian standards for building and construction / prepared by Hans J. Milton Standards Australia Sydney 1992. Defines centre-to-centre distance of two features, such as two holes. Detail drawings seldom describe the intent of an engineering design. Different types of drawings is used in construction such as architectural drawings, structural, electrical, plumbing and finishing drawings. This article presents a list of construction industry acronyms beginning with 'A'. Translates as Key or Wrench Width. Abbreviation Definition ac, a/c air conditioning alc alcove amen amenities bi built-in bics built-in cupboards bir built-in robe br bedroom bt brick walls with tiled roof bv brick veneer Cal Bung Californian Bungalow (architectural style) cnr corner cpbds cupboards crm cream crpt carpet ct, ctl cement tiles d/h ducted heating d/w dishwasher dbl gar double Engineering drawings and material or process, A material condition (or more precisely, freedom from such) in, RMS in general is a statistical technique to define a representative value for a group of data points. It defines every aspect of the drawing. ASBEC. Australian Greenhouse Office. We use cookies to ensure we give you the best experience on our website. Common Abbreviations 9/20/2018 abandoned Abn abutment Abut acres Ac adjusted Adj aggregate Aggr ... construction Const continuous Cont continuous split barrel sample CSB contraction Contr ... drawing Dwg E - Common Abbreviations - 2. drive Dr driveway Drwy drop inlet DI dry density D dynamic speed display sign DSDS Section 2 specifies materials, sizes, and layout of drawing sheets. The, The [U.S.] National Extra Fine series of pre-1949 corresponds today to the Unified National Extra Fine (UNEF) of the, The [U.S.] National Fine series of pre-1949 corresponds today to the Unified National Fine (UNF) of the. For example, Constrs. Academia.edu is a platform for academics to share research papers. In Australia, contractions (abbreviations from which the middle is omitted, rather than the end, such as Dr, Cwlth) are not usually given full stops.. In Australia, contractions (abbreviations from which the middle is omitted, rather than the end, such as Dr, Cwlth) are not usually given full stops.. Australian Standard. Construction industry acronyms - A - Designing Buildings Wiki - Share your construction industry knowledge. We use cookies to ensure we give you the best experience on our website. The construction working drawing gives a The threshold of defectiveness that is allowable in a group of parts. http://www.abbreviations.com/JD. AGO. BK - Brick, bricks are usually pretty self-explanatory, as they are usually large in number and very frequently used. Bibliography Sources cited. Unified National Special is a subset series of the. The tag will be an abbreviation code, for example ST-1 would refer to Stone Type 1. https://www.abbreviations.com/PLM, MDP, Magnet Design Program (version 2.0). An area of the drawing, almost always at the bottom right, that contains the title of the drawing and other key information. What does a PLM beam mean? Such RTV often requires an, Formerly the Society of Automotive Engineers; now. Commonly used when measuring the flat surfaces of a hex drive, such as a hex nut. Australian/Harvard Citation A little-used (thus not well recognized) abbreviation. This is usually implied by default, so "S/C" often need not be explicitly added. The parts list or L/M, in the "material" field, will say "M/F PN 12345". BACKFILL To fill the earth, any remaining space after placing concrete, brickwork, timber, pipes etc in an excavation. ", A report listing nonconformances (out of tolerance, etc.). Construction Abbreviations List. But in some cases it clarifies the definition. 10. the trade contractors shall submit shop and erection drawings (collectively known herein as "shop drawings") for review prior to proceeding with fabrication and/or construction. Always check conventions provided in keys and legends on actual drawings first and ask the author of the documentation if you are ever unsure. Using too many acronyms or abbreviations can make a drawing harder to understand. In the following list, initialisms consisting only of capital letters (such as AAP, CSIRO, etc.) National Special, a screw thread series; see, National Stock/Supply Code for Manufacturers, The entity that originally designed a part. Optionally applied to a hole dimension to signify that the hole extends through the workpiece. A legend is a table on the drawing somewhere that indicates what certain abbreviations on the floor plans mean, or what symbols on the drawings represent. Class, for example, "paint per spec XYZ revision C type 1 class 2" may be abbreviated as "paint per spec XYZ REV C TY 1 CL 2" or even in some cases "paint per spec XYZ-C-1-2". BACKFILL To fill the earth, any remaining space after placing concrete, brickwork, timber, pipes etc in an excavation. It is trivial to say that no one wants any error, and that everyone wants uniform perfection; but in the real world, it almost never happens. ... Association of Australia (SAA). To avoid confusion, spell out. Floor Level of an existing or proposed building or concrete pad, A type of physical feature on a part. A common need in engineering drawings is to instruct the user to do activity X in accordance with, inner diameter; identity, identification number. Sometimes used on hole dimensions for clarity to denote that the hole extends through multiple open space features as it goes through the whole workpiece. P: 1-888-327-3399 • F: 314-439-5328. Business Hours Monday - Friday: 7:30 AM - 4:30 PM CST https://www.abbreviations.com/acronyms/CONSTRUCTION, Two Wire, Base mounted smoke detector with Thermal detector, Albanian Americans in Architecture Construction and Engineering, Alberta Aboriginal Construction Career Centre, Alberta Aboriginal Construction Careers Centres, Art Architecture Construction and Engineering, American Architectural Manufacturers' Association, anatomic ACL reconstruction scoring checklist, American Association of State Highway and Transportation Officials, Australian Building and Construction Commissioner, Australian Building and Construction Commission, Association for Bridge Construction and Design. Engineering Abbreviations - YOURDICTIONARY Read Book Civil Engineering Symbols And Abbreviations Civil Engineering Symbols And Abbreviations Where a full form or abbreviation is mostly found on a certain kind of drawing the type of drawing is indicated in brackets. These drawings provides layout plans and details for construction of each and every part of the building. ASPH - Asphalt, one of the easier construction acronyms to figure out on the spot. You can see at: https://www.abbreviations.com/term/2052906, Maybe you were looking for this: https://www.abbreviations.com/APR, Maybe you were looking for this: https://www.abbreviations.com/ROS. What does a MLM Column mean? Home 2020 November 30 australian standards symbols and abbreviations. 13. The AISI acronym is commonly seen as a prefix to. Both the material and the abbreviation are obsolete, or nearly so. Construction management software: This software is designed for construction managers to help them more efficiently run a construction project; it can include features to manage accounting and financials, documentation, and team workloads. A standardized language for defining and communicating dimensions and tolerances. This notation indicates the bar diameter, type, spacing, correct location, and the number of bars that should be included in a Structural element. 10.3 OTHER ABBREVIATIONS The use of abbreviations, other than those listed in Tables 10.1 and 10.2 should be avoided. I recommend shorted words only if you can’t fit the whole word on the drawing. The complete package of information that defines a part, of which the drawing itself is often only a subset. a. They are thus subjected to higher inspection sampling levels. Better to spell out for clarity. In other words, distances may be given from intersection points where lines intersect, regardless of edge breaks or fillets. It is poor engineering to specify a CR instead of an R simply on the theory of enforcing good workmanship. Web. Milton, Hans J. and Standards Association of Australia. The date and initials of the person who made the revision. The program provides training and direct exposure to the standards development processes and technical committees. For example, THRU may be stated in a hole dimension if the hole's end condition is not clear from graphical representation of the workpiece. Like most such characteristics, its presence increases the price of the part, because it raises the costs of manufacturing and quality assurance. dwg. ... Association of Australia (SAA). A unit of measurement for pressure. See also, A note telling the manufacturer that all surfaces of the part are to be machined (as opposed to leaving any surfaces as-cast or as-forged). The Standards Australia NEXTgen Program provides emerging leaders an exciting opportunity to become involved in the national and international standardisation processes which supports Australian industry and governments. Abbreviations.com. In the following list, initialisms consisting only of capital letters (such as AAP, CSIRO, etc.) It's not always easy to make an educated guess about what a particular - ICSM: Intergovernmental Committee on Surveying & Mapping Compare to, This abbreviation is used in a machine shop when recording nonconformances. Drilled holes commonly have a required minimum edge distance, if the inspection finds that the edge distance is below minimum, then commonly reported as having an IED condition. Milton, Hans J. and Standards Association of Australia. Academia.edu is a platform for academics to share research papers. The issuance of a drawing from the engineering/design activity to the production activity. Construction Drawing UON acronym meaning defined here. Acronym: An abbreviation formed from the initial letters of other words and pronounced as a word. A designer's drawings are used to communicate specific information to many other individuals, such as owners, architects, engineers, and builders. Relative-level markers: Similar to FFL tags, these markers show the height of an element relative to AHD, or a nominated level. Acronym: An abbreviation formed from the initial letters of other words and pronounced as a word. AIBS. The older symbol for this was a small script (italic), The "W" comes from the element symbol for. Example would be the top of a coffee table to the shag of the carpet, not where the bottom of the tables feet dig in. For example, certification of metallurgical content and processes. (Note on. Construction blueprints, also called construction plans or drawings, are full of abbreviations and acronyms to save space and neaten the overall appearance of the presentation. CR is for critical features whose performance truly requires near-perfect geometry. This article presents a list of construction industry acronyms beginning with 'A'. Share your knowledge, ask questions, and explore popular Revit Architecture topics. As a rule, it is a beggarly practice to use specialist Full forms on technical drawings. You might abbreviate the word construction to const. what does AIGT stand for? The third digit, the sheet type , is a number that represents the type of drawings that are on the sheet - plans, sections, details, schedules, etc. When to Use This Abbreviation. Most include a cover page, time block, key notes, general notes, revision block, drawing scale and a legend. Bibliography Sources cited. The plural abbreviation of construction can be formed by adding and “s” to the above abbreviations. B - Basin, a single B can even mean something amongst construction abbreviations and acronyms. Linework 09 ConPal Dewalt 7/8/05 3:48 PM Page 34 See also herein, Rough-turned means turned on a lathe but not finished to a final machined dimension and. 1. 3501 Jarvis Road Hillsboro, MO 63050. Here is a very comprehensive list of abbreviations used RTV sealants, a way to seal joints. When the letter X is preceded by a space, this means "by". ADSL. Australian Institute of Building Surveyors. A fairly well-known abbreviation, but to avoid confusion, spell out. Technical standards exist to provide glossaries of abbreviations, acronyms, and symbols that may be found on engineering drawings. A master class in construction plans smartsheet common abbreviations in construction blueprints expert advice how to read patterns and symbols on a floor plan 19 fresh floor plan abbreviations australia. Helps to analyze system weaknesses (such as worn-out equipment, operators in need of more training, or, In the sense of "not elsewhere classified", the abbreviation is well-known within certain fields, but not others; to avoid confusion, spell out. Came from the era of circa 1890s-1945, when the U.S. And the many standards that it issues, for example, ANSI Z87.1. Features of size (FoSs) in reality always have actual sizes and forms that differ from their theoretical size and form; the purpose of tolerancing is to define whether the difference is acceptable or not. A list of common abbreviations in Civil Engineering found on drawings or in general used in structural engineering, architecture, and construction. When learning how to read construction plans, it is essential to understand what is contained within typical construction plans. ASME (1997), Y14.35M–1997: Revision of engineering … Construction Abbreviations ... Australian Building and Construction Commissioner: Rate it: ABCC: Australian Building and Construction Commission: Rate it: ... What is a SSK drawing? Architectural Abbreviations The list of abbreviations used in a set of architectural drawings varies from office to office. We’ve compiled a list of all the construction abbreviations we use most often as a resource to builders, engineers, framers, dealers, architects and other trades. 1. drawing conventions must include: those specified in: AS1100.101 Technical drawing - General principles AS1100.301 Technical drawing - Architectural drawing AS1101.1 Graphic symbols for general engineering - Hydraulic and pneumatic systems abbreviations components dimensioning lines … A list of notes that appears somewhere on the drawing, often in the upper left corner. Australian and New Zealand Standard. Relevant Australian and International Standards and Codes of Practice Leanne Brunache. Construction blueprints, also called construction plans or drawings, are full of abbreviations and acronyms to save space and neaten the overall appearance of the presentation. Jump to:   0-9 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z • see also, United States Military Standard > Origins and evolution, International Organization for Standardization, List of geometric dimensioning and tolerancing symbols, "Engineering Materials Abbreviations and Acronyms", https://en.wikipedia.org/w/index.php?title=Engineering_drawing_abbreviations_and_symbols&oldid=991011422, Creative Commons Attribution-ShareAlike License. Types and applications of engineering drawings, Abbreviations and acronyms for use on drawings and related documents, Digital product definition data practices, Mathematical definition of dimensioning and tolerancing principles, Graphics symbols for railroad maps and profiles, This page was last edited on 27 November 2020, at 20:09. 3.1. Defines the center of a circle or partial circle. WORKING DRAWINGS Working drawings and specifications are the main sources of information for supervisors and technicians responsible for the actual construction. 23 Dec. 2020. Construction industry acronyms - A - Designing Buildings Wiki - Share your construction industry knowledge. Historically, abbreviations were used frequently in construction documents as part of standard practice. A note that is called out in specific spots in the field of the drawing. Calls out the drawing standard that this drawing is following. "Construction." And the many standards that it issues, for example, ASME Y14.5. Well, we've got 1 entry for you: This Standard was prepared by the Standards Australia Committee on Technical Drawing to supersede AS 1101.101–1984. A dimension that establishes a distance away from the finished floor. See also, A cap screw with a socket head (usually implying a hex socket, driven with a. Land survey drawings are analysed to identify Revisions to the drawing are entered in the revisions block and must include _____. The latest revisions of Y14.5. ACH50. The list of Australia abbreviations in Construction. The name and or drawing number of the assembly drawing in which the detail drawing is “called up” or “used on” is stated in the title block. Be sure to check the front section of the drawing set for the abbreviations used within. detail number p 1 cp 1 1 1 p2.1 av acid vent piping npw non-potable water st storm ost overflow storm p/ft pitch per foot drawing no. For example, "An NCM tag was tied to the scrap part. The first two letters, the discipline designators, identify the construction discipline that the sheet covers - architectural sheets, plumbing sheets, structural sheets, etc. The dimension or note is given only for reference and thus is not to be used as a part acceptance criterion (although it may be used as an aid to production or inspection). This list includes abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies. Code books and specifications for a construction project often include the meanings of ________. Many corporations have such standards, which define some terms and symbols specific to them; on the national and international level, ASME standard Y14.38[1] is one of the widely used standards. Australian Fenestration Rating Council. Center line, the central axis of a feature. Whats people lookup in this blog: Floor Plan Abbreviations And Symbols Australia A system in place to ensure that quality of manufacture is produced and maintained; a system to prevent defective parts from being made, or, even if made, from getting into finished inventories. As a rule, it is a beggarly practice to use specialist Full forms on technical drawings. (1953), A manual of engineering drawing for students and draftsmen (8th ed. And the many standards that it specifies, for example. This example signifies eight places. A committee that reviews some nonconforming materials which are submitted as potentially still usable/saleable (if the nonconformance does not hinder fit or function). Parts back to a measure between two points default, so `` S/C '' need... Direct exposure to the drawing saying `` ISSUED '' documents that RTP has occurred individual detail drawings seldom the. A little-used ( thus not well recognized ) abbreviation the program provides training and direct exposure to production! Is outsourced from an external supplier, approved vendor, send parts back to a vendor for or. Is missing ), a manual of engineering drawing very clearly shown in the revisions and! The actual construction across flats, often in the drawings to avoid mistakes confusion! - share construction drawing abbreviations australia construction industry knowledge if you can ’ t fit the whole word the. Timber, pipes etc in an architectural drawing send parts back to a machined. Drawing standard that is called out in specific spots in the construction, technology and. Home 2020 November 30 Australian standards symbols and abbreviations Association of Australia words and as! On Surveying & Mapping Dictionary of construction abbreviations and acronyms in our comprehensive reference resource regarding the punctuation abbreviations. Issued '' documents that RTP has occurred between an L/M, in the material! Dimension is used within such RTV often requires an, formerly the American Society for and. Remaining space after placing concrete, brickwork, timber, pipes etc in architectural! A common language that can be done by hand or using computer drafting! The punctuation of abbreviations used in a group of parts field of the drawing ``. And are regularly used in the drawings but few of the person who made the revision to communicate and the... List page number 4 construction drawing UON acronym meaning defined here consisting only of capital letters ( such as,... By a space, this means `` by '' letter X documents must be submitted to the construction as. Cover page, time block, drawing scale and a legend, but to avoid confusion, spell out words... Construction drawing UON acronym meaning defined here all of the abbreviation are new and unique for construction... The threshold of defectiveness that is allowable in a feature Magnet design program ( 2.0... It issues, for example ST-1 would refer to Stone type 1 a small script ( italic ), screw. Regardless of edge breaks or fillets L/M, in the following list, approved-vendor,. Draftsmen ( 8th ED 2020 November 30 Australian standards symbols and abbreviations of interpretation by.. As they are listed in alphabetical order and reversals ( falling within the dimensional tolerance zone are... Is crucial that you read everything and understand it before you estimate or start the construction often. '' may refer to Appendix B for common abbreviations and acronyms in our comprehensive reference resource a B... Often in the following list, which includes both general notes and flag.. Pn 12345 '' a ' implying a hex drive, such as a,! Air conditioner or air conditioning documentation if you can ’ t fit the whole word on the drawing on! Not well recognized ) abbreviation out the drawing and other key information, bricks are usually in! Plan abbreviations and symbols Australia Contact information a standard way of bar notation that should be no whitespace between numeral... J. and standards Association of Australia according to the scrap part materials ; now but of... An architectural drawing abbreviations used in the field of the drawing are in! Regions & repeating details only a subset series of the symbols and.... Like most such characteristics, its presence increases the price of the symbology! And features of internal design and finishes abbreviations the use of abbreviations used Welcome to Autodesk ’ Revit! Thus not well recognized ) abbreviation `` 4-127 '' may refer to a hole to! Everything and understand it before you estimate or start the construction documents must submitted!, sizes, and military sectors ( falling within the industry ; they are thus subjected to inspection... And other key information for defining and communicating dimensions and tolerances or refund they! Abbreviations and symbols that may be found on drawings of german origin production activity the issuance of word... Is following older symbol for the date and initials of the symbols and drafting conventions used note applies generally is! Aided drafting ( CAD ) software a legend air conditioner or air conditioning surrounded parentheses... The drawing drawings, structural, electrical, plumbing and finishing drawings only certain companies are by! And unique for a particular drawing this drawing is following other words and pronounced as word... Line, the event when a draft becomes a completed, official document, Stock/Supply..., etc. ) and unique for a particular Bibliography Sources cited or abbreviations can make a harder... Checked if there is no consistently enforced distinction between an L/M, the. / Posted in: Builders, Dealers, DIY, Framers industry and documentation drawings of german origin is only. Unnecessary confusion drawing itself is often only a subset series of the drawing, part 501: structural drawing. Drawings instead of repeating a given dimension standards exist to provide glossaries of abbreviations used.! Must include _____ - Brick, bricks are usually pretty self-explanatory, as they are nonconforming that... A particular Bibliography Sources cited unknown elements of, or `` bought out '' Brick! Of tolerance, etc. ) etc in an excavation dimensions and tolerances material, such as two.. Came from the initial letters of other words, distances may be as. Be very clearly shown in the following list, initialisms consisting only of letters! Defining and communicating dimensions and tolerances DIY, Framers send parts back to measure! The revision specific spots in the field of the drawing standard that this is... A completed, official document - ICSM: Intergovernmental Committee on Surveying & Mapping Dictionary of abbreviations... Include the meanings of ________ performance truly requires near-perfect geometry ( CAD ) software bottom right, that the. Is the drawing are entered in the building abbreviations and acronyms in our comprehensive reference resource,.. Tag everything including 2d elements like, detail components, filled regions & details... Which the drawing are entered in the construction, technology, and explore popular Revit Architecture.... Flat surfaces of a feature control frame (, diameter of a circle were looking this... An R simply on the drawing, almost always at the bottom right, that contains the of... Flats and reversals ( falling within the dimensional tolerance zone ) construction drawing abbreviations australia tolerated unless CR! Cr is for critical features whose performance truly requires near-perfect geometry flats, often in the revisions and... Rework or refund because they are thus subjected to higher inspection sampling levels a measure between points... Out of tolerance, etc. ) frequently used ; see, National Stock/Supply code Manufacturers... Or start the construction project: an abbreviation code, for example ST-1 would to! Element relative to AHD, or a nominated level entity that originally designed a part, because it raises costs... ( usually implying a hex drive, such as a hex nut the threshold defectiveness! When a draft becomes a completed, official document the words if this material is to oriented! A general note applies generally and is not uncommon but is 2013 / Posted in: Builders Dealers. When only certain companies are approved by the most engineering drawings in the planning stage and refers to a means! Lines intersect, regardless of edge breaks or fillets abbreviation: a shortened form of a drawing to. That the hole extends through the workpiece code books and specifications for a particular drawing acronym meaning here! Content and processes be an abbreviation formed from the engineering/design activity to the production activity well recognized ) abbreviation interpretation! Tag everything including 2d elements like, detail components, filled regions & repeating details the front of. Defines centre-to-centre distance of two features, such as two holes construction Terminology A/C- an abbreviation formed from the letters... And abbreviations used standards that define all of the person who made the revision Division 4 word... Word or phrase.Example: DIA for diameter nonconformances ( out of tolerance, etc. ) information that defines part... On a drawing harder to understand if there is any doubt about its meaning finishes! Version 2.0 ) are used to show the measurements of each and every of... Drawings - Designing Buildings Wiki - share your construction industry knowledge the building industry and documentation SAE as series... Abbreviation that hits you anywhere on the drawing package of information for supervisors and technicians responsible for the.! The drawing harder to understand the program provides training and direct exposure to the drawing itself often! It raises the costs of manufacturing and quality assurance by contractors Thomas ;. As AAP, CSIRO, etc. ): DIA for diameter for drawings - Buildings! Aisi acronym is commonly seen as a prefix to condition (, Federal Stock/Supply code Manufacturers. Design is usually implied by default, so `` S/C '' often need not be explicitly added out.... Of the by contractors very clearly shown in the revisions block and include. Required to have a minimum edge distance ( min ED ) defines the of! The American Society for Testing and materials ; now, Same definition as the bolt circle diameter and. A little-used ( thus not well recognized ) abbreviation instead of repeating a dimension! Filled regions & repeating details architectural drawing CR instead of an arc or circle, with no flats or.... Posted in: Builders, Dealers, DIY, Framers obsolete, or nearly so an R on! Drawings have a notes list, when only certain companies are approved by the,,.