Common mistakes on building drawings - Revision history

Editor at 13:05, 6 January 2022

2022-01-06T13:05:19Z

← Older revision		Revision as of 13:05, 6 January 2022
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	* Notes that are not understood.		* Notes that are not understood.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Common mistakes in construction tenders.		* Common mistakes in construction tenders.

Designing Buildings at 08:57, 30 September 2020

2020-09-30T08:57:12Z

← Older revision		Revision as of 08:57, 30 September 2020
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	* Working drawing.		* Working drawing.

−	[[Category:~~Articles_needing_more_work~~]] [[Category:Design]]	+	[[Category:DCN_Education_and_Training]] [[Category:DCN_Guidance]] [[Category:Design]]

Designing Buildings at 06:00, 20 December 2019

2019-12-20T06:00:42Z

Editor at 11:22, 18 December 2019

2019-12-18T11:22:23Z

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		+	\| [[File:Design drawing cropped.jpg]]
		+	\|}
		+
	Many different types of drawing can be used during the process of designing and constructing buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information. Mistakes on drawings can lead to costly delays and remedial work if they are not corrected.		Many different types of drawing can be used during the process of designing and constructing buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information. Mistakes on drawings can lead to costly delays and remedial work if they are not corrected.

Editor at 11:21, 18 December 2019

2019-12-18T11:21:17Z

← Older revision		Revision as of 11:21, 18 December 2019
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−	Many different types of drawing can be used during the process of designing and constructing buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information ~~in a form that may need to be relied upon~~. Mistakes on drawings can lead to costly delays and remedial work if they are not corrected.	+	Many different types of drawing can be used during the process of designing and constructing buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information. Mistakes on drawings can lead to costly delays and remedial work if they are not corrected.

−	A very common mistake is ~~simply that~~ drawings ~~are~~ not complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the ~~works start~~ on-site.	+	A very common mistake is drawings not being complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the work starts on-site.

	Designers may also omit some detailing during the design process, such as window details or roof construction details, intending to complete them later, and will instead provide notes about what that portion of the construction should consist of. This can become a problem If they do not return to update the drawings before construction begins.		Designers may also omit some detailing during the design process, such as window details or roof construction details, intending to complete them later, and will instead provide notes about what that portion of the construction should consist of. This can become a problem If they do not return to update the drawings before construction begins.

−	Frequently, drawings do not coordinate with one another, ~~in particular~~ if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes' such as ventilation ducts or running through structural beams (a hard clash), or insufficient space provision for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.	+	Frequently, drawings do not coordinate with one another, especially if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes', such as ventilation ducts running through structural beams (a hard clash), or insufficient space provision for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.

−	Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different ~~discipline~~'s BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.	+	Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different disciplines' BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.

−	There may also be inconsistencies between drawn information and written information such as that on schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.	+	There may also be inconsistencies between drawn information and written information, such as that on schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.

−	In terms of ~~the~~ personal drawing style, designers may have in-house habits that are not understood by other teams or disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected.	+	In terms of personal drawing style, designers may have in-house habits that are not understood by other teams or disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected. This is particularly important when drawings are prepared using CAD or BIM. This can involve the federation of information prepared by multiple teams to create a single building information model. If the information is not created consistently, serious incompatibilities can emerge that can be costly and time consuming to correct.
−		+
−	This is particularly important when drawings are prepared using ~~computer aided design~~ or ~~building information modelling~~. This can involve the federation of information prepared by multiple teams to create a single building information model. If the information is not created consistently serious incompatibilities can emerge that can be costly and time consuming to correct.	+

	In terms of technical details, common mistakes include:		In terms of technical details, common mistakes include:
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	* File exchange or conversion errors.		* File exchange or conversion errors.
	* Software incompatibilities.		* Software incompatibilities.
−	* ~~Unbuildable~~, or difficult to build elements.	+	* Un-buildable, or difficult to build elements.
	* Missing components.		* Missing components.
	* Inconsistent information.		* Inconsistent information.

Editor at 19:02, 15 November 2019

2019-11-15T19:02:23Z

← Older revision		Revision as of 19:02, 15 November 2019
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	* Notes that are not understood.		* Notes that are not understood.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Common mistakes in construction tenders.		* Common mistakes in construction tenders.
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	* Manual drafting techniques.		* Manual drafting techniques.
	* Perspective.		* Perspective.
		+	* Rotring.
	* Symbols on architectural drawings.		* Symbols on architectural drawings.
	* Technical drawing.		* Technical drawing.

175.143.40.126 at 07:51, 18 June 2019

2019-06-18T07:51:08Z

← Older revision		Revision as of 07:51, 18 June 2019
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	* Working drawing.		* Working drawing.

−	[[Category:Design]]	+	[[Category:Articles_needing_more_work]] [[Category:Design]]

Designing Buildings at 07:14, 14 August 2018

2018-08-14T07:14:56Z

← Older revision		Revision as of 07:14, 14 August 2018
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−	Many different types of drawing can be used during the process of designing and constructing buildings. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information in a form that may be relied upon. Mistakes on ~~building~~ drawings can lead to costly delays and remedial work if they are not corrected.	+	Many different types of drawing can be used during the process of designing and constructing buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information in a form that may need to be relied upon. Mistakes on drawings can lead to costly delays and remedial work if they are not corrected.

	A very common mistake is simply that drawings are not complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the works start on-site.		A very common mistake is simply that drawings are not complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the works start on-site.
Line 9:		Line 9:
	Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different discipline's BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.		Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different discipline's BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.

−	There may also be inconsistencies between drawn information and written information such as schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.	+	There may also be inconsistencies between drawn information and written information such as that on schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.

−	In terms of the personal drawing style, designers may have in-house habits that are not understood by other disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected.	+	In terms of the personal drawing style, designers may have in-house habits that are not understood by other teams or disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected.

−	This particularly important when drawings are prepared using computer aided design or building information modelling. This can involve the federation of information prepared by multiple teams to create a single model. If the information is not created consistently serious incompatibilities can emerge that can be costly and time consuming to correct.	+	This is particularly important when drawings are prepared using computer aided design or building information modelling. This can involve the federation of information prepared by multiple teams to create a single building information model. If the information is not created consistently serious incompatibilities can emerge that can be costly and time consuming to correct.

	In terms of technical details, common mistakes include:		In terms of technical details, common mistakes include:

Designing Buildings at 07:11, 14 August 2018

2018-08-14T07:11:02Z

← Older revision		Revision as of 07:11, 14 August 2018
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	A very common mistake is simply that drawings are not complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the works start on-site.		A very common mistake is simply that drawings are not complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the works start on-site.
		+
		+	Designers may also omit some detailing during the design process, such as window details or roof construction details, intending to complete them later, and will instead provide notes about what that portion of the construction should consist of. This can become a problem If they do not return to update the drawings before construction begins.

	Frequently, drawings do not coordinate with one another, in particular if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes' such as ventilation ducts or running through structural beams (a hard clash), or insufficient space provision for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.		Frequently, drawings do not coordinate with one another, in particular if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes' such as ventilation ducts or running through structural beams (a hard clash), or insufficient space provision for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.
Line 7:		Line 9:
	Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different discipline's BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.		Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different discipline's BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.

−	~~Architects, designers and engineers~~ may ~~skip some detailing~~, i.~~e. window details or roof construction details~~, ~~and will instead provide~~ notes ~~about what that portion~~ of the ~~construction will consist of~~. This ~~only becomes a problem if they do not return~~ to and ~~update the~~ drawings ~~before construction begins~~, ~~as otherwise the contractor is left to interpret the notes into actual construction which can prove problematic~~ and ~~not what~~ the ~~client specified~~.	+	There may also be inconsistencies between drawn information and written information such as schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.
		+
		+	In terms of the personal drawing style, designers may have in-house habits that are not understood by other disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected.

−	~~In terms of the personal drawing style of the architect~~ or ~~designer, it~~ can be the ~~case that they are inflexible and have become too settled in the style and technique that they find most comfortable. This means that they are less open to building a repertoire~~ of ~~different elements~~ to ~~their drawings and learning something new, which can cause their designs to suffer as~~ a ~~consequence~~. It can ~~also~~ be ~~a problem if they are unable to move away from their initial designs for a project~~ and ~~evolve them~~ to ~~be more reflective of the client’s wants and needs~~.	+	This particularly important when drawings are prepared using computer aided design or building information modelling. This can involve the federation of information prepared by multiple teams to create a single model. If the information is not created consistently serious incompatibilities can emerge that can be costly and time consuming to correct.

−	In terms of technical details ~~that can be~~ common mistakes~~, some of these~~ include:	+	In terms of technical details, common mistakes include:

−	* Incorrect or inconsistent ~~scale~~ being used across drawings.	+	* Incorrect or inconsistent scales being used across drawings.
−	* Doors ~~open~~ the wrong way or with insufficient opening space (i.e. open onto other doors, cabinets, windows, etc.).	+	* Doors opening the wrong way or with insufficient opening space (i.e. open onto other doors, cabinets, windows, etc.).
−	* ~~Insufficient storage provision or~~ located in impractical places.	+	* Facilities located in impractical places.
−	* ~~Excessive~~, ~~oversized~~ or awkward ~~circulation~~ spaces.	+	* Undersized, impractical or awkward spaces.
−	* ~~Not enough natural light being taken into consideration~~.	+	* Poorly detailed junctions or abutments between different components or systems.
−	* Incorrect symbols ~~being used~~.	+	* Incorrect symbols.
−	* ~~Impractical furniture arrangements when laying out floor plans (e~~.g. ~~dining rooms need enough space for a table which people can sit at comfortably~~, ~~rooms with unusual angles must be able~~ to ~~accommodate furniture, bedrooms must be able to accommodate a bed, etc~~.).	+	* Inconsistent revision numbers.
		+	* Poor reproduction.
		+	* File exchange or conversion errors.
		+	* Software incompatibilities.
		+	* Unbuildable, or difficult to build elements.
		+	* Missing components.
		+	* Inconsistent information.
		+	* Illegible writing.
		+	* The use of acronyms that are not understood.
		+	* Notes that are not understood.

	= Find out more =		= Find out more =

Designing Buildings at 06:56, 14 August 2018

2018-08-14T06:56:10Z

← Older revision		Revision as of 06:56, 14 August 2018
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−	Many different types of drawing can be used during the process of designing and constructing buildings. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information in a ~~representation~~ form that may be relied ~~on for various work activities~~. Mistakes ~~included~~ on building drawings can lead to costly delays and remedial work if they are ~~only identified at a later stage~~.	+	Many different types of drawing can be used during the process of designing and constructing buildings. There are several common mistakes that can be made when producing or interpreting drawings, so it is important that care and attention is brought to bear whenever conveying technical information in a form that may be relied upon. Mistakes on building drawings can lead to costly delays and remedial work if they are not corrected.

−	A common mistake is ~~when the~~ drawings are not complete~~, as this can increase risk of changes or inconsistencies if they are relied upon for construction~~. This can be a particular problem ~~if the architect or designer does~~ not have the necessary experience ~~for producing~~ the ~~type of~~ drawings ~~that are~~ required. Incomplete drawings ~~will often~~ lead to change orders ~~being required~~ when the works start on-site.	+	A very common mistake is simply that drawings are not complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the works start on-site.

−	~~It can sometimes be the case that the~~ drawings do not coordinate with one another, ~~i.e.~~ the ~~floor plans or architectural~~ drawings do not ~~coordinate~~ with ~~the electrical drawings or section~~ drawings. This can result in ~~errors like~~ ventilation ducts or ~~electric cabling being depicted as~~ running through structural beams, for ~~example~~. To try and ~~avoid~~ this problem, the design team should review all ~~the~~ working drawings to ensure that they coordinate accurately.	+	Frequently, drawings do not coordinate with one another, in particular if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes' such as ventilation ducts or running through structural beams (a hard clash), or insufficient space provision for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.
		+
		+	Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different discipline's BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.

	Architects, designers and engineers may skip some detailing, i.e. window details or roof construction details, and will instead provide notes about what that portion of the construction will consist of. This only becomes a problem if they do not return to and update the drawings before construction begins, as otherwise the contractor is left to interpret the notes into actual construction which can prove problematic and not what the client specified.		Architects, designers and engineers may skip some detailing, i.e. window details or roof construction details, and will instead provide notes about what that portion of the construction will consist of. This only becomes a problem if they do not return to and update the drawings before construction begins, as otherwise the contractor is left to interpret the notes into actual construction which can prove problematic and not what the client specified.

← Older revision		Revision as of 06:00, 20 December 2019
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	{\|		{\|
−	\| [[File:~~Design drawing cropped~~.jpg]]	+	\| [[File:Design_drawing_cropped.jpg\|link=File:Design_drawing_cropped.jpg]]
	\|}		\|}

−	Many ~~different~~ types of drawing can be used during the ~~process of designing~~ and ~~constructing~~ buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings~~, so it is important~~ that ~~care and attention is brought to bear whenever conveying technical information. Mistakes on drawings~~ can lead to costly delays and remedial work ~~if they are not corrected~~.	+	Many types of drawing can be used during the design and construction of buildings, often prepared by different disciplines or teams, working separately from one another. There are several common mistakes that can be made when producing or interpreting drawings that can lead to costly delays and avoidable remedial work.

−	A ~~very~~ common mistake is drawings not being complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the work starts on-site.	+	A simple but common mistake is drawings not being complete. This can be a particular problem where designers do not have the necessary experience, supervision, quality systems or time to produce the drawings required. Incomplete drawings can lead to requests for information and change orders when the work starts on site.

	Designers may also omit some detailing during the design process, such as window details or roof construction details, intending to complete them later, and will instead provide notes about what that portion of the construction should consist of. This can become a problem If they do not return to update the drawings before construction begins.		Designers may also omit some detailing during the design process, such as window details or roof construction details, intending to complete them later, and will instead provide notes about what that portion of the construction should consist of. This can become a problem If they do not return to update the drawings before construction begins.

−	~~Frequently, drawings do~~ not ~~coordinate with one another~~, ~~especially~~ if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes', such as ventilation ducts running through structural beams (a hard clash), or insufficient space ~~provision~~ for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.	+	Drawings may not be coordinated, in particular if they are prepared by different teams, for example, the information on structural drawings may not be consistent with ductwork drawings. This can result in 'clashes', such as ventilation ducts running through structural beams (a hard clash), or insufficient space for installation works or access for maintenance (a soft clash). To try and void this problem, the design team should regularly review all up-to-date working drawings to ensure that they coordinate accurately.

	Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different disciplines' BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.		Building information modelling (BIM) can help prevent clashes. Clash detection software can identify clashes between different disciplines' BIM data and generate clash reports. However, this should not be relied upon as a fail-safe check, and should not be used to justify poor design co-ordination processes. For more information see: Clash avoidance.

−	There may also be inconsistencies between drawn information and written information, such as ~~that on~~ schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.	+	There may also be inconsistencies between drawn information and written information, such as schedules or specifications. It is important therefore that information is not duplicated between different types of document, but rather that one refers to the other. For example, a drawing may include notes referring to additional details in specification clauses.

−	In terms of personal drawing style, designers may have in-house habits that are not understood by other teams or disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected. This is particularly important when drawings are prepared using CAD or BIM. ~~This~~ can involve the federation of information prepared by multiple teams to create a single ~~building information~~ model. If the information is not created consistently, ~~serious~~ incompatibilities can emerge that can be costly and time consuming to correct.	+	In terms of personal drawing style, designers may have in-house habits that are not understood by other teams or disciplines. This can lead to misinterpretation and mistakes. It is important therefore that drawings adopt standard methods and procedures for preparation, symbols, hatching, annotation and so on. These should be agreed at the outset so that early drawings do not have to be corrected. This is particularly important when drawings are prepared using computer aided design (CAD) or BIM. BIM can involve the federation of information prepared by multiple teams to create a single model. If the information is not created consistently, incompatibilities can emerge that can be costly and time consuming to correct.

	In terms of technical details, common mistakes include:		In terms of technical details, common mistakes include:

	* Incorrect or inconsistent scales being used across drawings.		* Incorrect or inconsistent scales being used across drawings.
−	* Doors opening the wrong way or with insufficient opening space (i.e. ~~open onto~~ other doors, cabinets, windows, etc.).	+	* Doors opening the wrong way or with insufficient opening space (i.e. opening into other doors, cabinets, windows, etc.).
	* Facilities located in impractical places.		* Facilities located in impractical places.
	* Undersized, impractical or awkward spaces.		* Undersized, impractical or awkward spaces.