Herringbone strut - Revision history

Editor at 16:31, 10 February 2022

2022-02-10T16:31:45Z

← Older revision		Revision as of 16:31, 10 February 2022
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	Alternatively, and perhaps more reliably, the floor can be strengthened, by 'sistering' steel, timber or ply reinforcing joists to the side of the existing joists, although, perversely, the installation of reinforcement can be made more difficult by the presence of herringbone struts or noggings.		Alternatively, and perhaps more reliably, the floor can be strengthened, by 'sistering' steel, timber or ply reinforcing joists to the side of the existing joists, although, perversely, the installation of reinforcement can be made more difficult by the presence of herringbone struts or noggings.

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

	* Batten.		* Batten.
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	* Raised floor.		* Raised floor.
	* Sistering floor joists.		* Sistering floor joists.
		+	* Strut.
	* Timber.		* Timber.
	* Wall ties.		* Wall ties.

	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Designing Buildings at 10:13, 28 September 2020

2020-09-28T10:13:48Z

← Older revision		Revision as of 10:13, 28 September 2020
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	* Wall ties.		* Wall ties.

−	[[Category:~~Construction_techniques~~]] [[Category:~~Products_/_components~~]] [[Category:DCN_Product_Knowledge]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Editor at 15:36, 5 April 2018

2018-04-05T15:36:31Z

← Older revision		Revision as of 15:36, 5 April 2018
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	Herringbone struts are a form of cross bracing typically found between floor joists. Bracing between parallel rows of joists helps them to stay in place and prevents them from twisting.		Herringbone struts are a form of cross bracing typically found between floor joists. Bracing between parallel rows of joists helps them to stay in place and prevents them from twisting.

−	Herringbone struts can be made of timber or pre-galvanised mild steel. They are sometimes used as an alternative to solid block bridging (or noggins / dwangs), particularly for long-span domestic floors. They are generally installed at the centre of a span when floor joists exceed 2.5 m. Spans exceeding 4.5 m may require two rows spaced at 1/3 and 2/3 span.	+	Herringbone struts can be made of timber or pre-galvanised mild steel. They are sometimes used as an alternative to [[Bridging\|solid block bridging]] (or noggins/dwangs), particularly for long-span domestic floors. They are generally installed at the centre of a span when floor joists exceed 2.5 m. Spans exceeding 4.5 m may require two rows spaced at 1/3 and 2/3 span.

−	Timber herringbone strutting should be at least 38 x ~~38mm~~ timber and can only be used where the spacing between the joists is less than three times the depth of the joist.	+	Timber herringbone strutting should be at least 38 x 38 mm timber and can only be used where the spacing between the joists is less than three times the depth of the joist.

	They may be the preferred option if there is a lot of pipework or cabling to accommodate between joists, as they reduce the amount of drilling that would be required through solid noggings, which would weaken the floor.		They may be the preferred option if there is a lot of pipework or cabling to accommodate between joists, as they reduce the amount of drilling that would be required through solid noggings, which would weaken the floor.

−	A common problem in older dwellings is that floors feel ‘springy’. This can, in part, be because the herringbone struts have been removed in order to run services. Their re-introduction, or the reintroduction of regular noggings can help reduce the problem as the floor is encouraged to behave more as a 'slab' rather than a series of individual joists. Alternatively, and perhaps more reliably, the floor can be strengthened, by 'sistering' steel, timber or ply reinforcing joists to the side of the existing joists, although, perversely, the installation of reinforcement can be made more difficult by the presence of herringbone struts or noggings.	+	A common problem in older dwellings is that floors feel ‘springy’. This can, in part, be because the herringbone struts have been removed in order to run services. Their re-introduction, or the reintroduction of regular noggings can help reduce the problem as the floor is encouraged to behave more as a 'slab' rather than a series of individual joists.
		+
		+	Alternatively, and perhaps more reliably, the floor can be strengthened, by 'sistering' steel, timber or ply reinforcing joists to the side of the existing joists, although, perversely, the installation of reinforcement can be made more difficult by the presence of herringbone struts or noggings.

	= Find out more =		= Find out more =
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	* Batten.		* Batten.
	* Brander.		* Brander.
		+	* Bridging.
	* Cross-laminated timber.		* Cross-laminated timber.
	* Dwang.		* Dwang.
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	* Wall ties.		* Wall ties.

−	[[Category:Construction_techniques]] [[Category:Products_/_components]]	+	[[Category:Construction_techniques]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Editor at 15:01, 30 October 2017

2017-10-30T15:01:50Z

← Older revision		Revision as of 15:01, 30 October 2017
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	* Plywood.		* Plywood.
	* Raised floor.		* Raised floor.
		+	* Sistering floor joists.
	* Timber.		* Timber.
	* Wall ties.		* Wall ties.

	[[Category:Construction_techniques]] [[Category:Products_/_components]]		[[Category:Construction_techniques]] [[Category:Products_/_components]]

Editor at 12:11, 9 May 2017

2017-05-09T12:11:12Z

← Older revision		Revision as of 12:11, 9 May 2017
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	* Cross-laminated timber.		* Cross-laminated timber.
	* Dwang.		* Dwang.
		+	* Flitch beam.
	* Flooring.		* Flooring.
	* Glulam.		* Glulam.

Designing Buildings at 06:51, 2 October 2016

2016-10-02T06:51:54Z

← Older revision		Revision as of 06:51, 2 October 2016
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	* Flooring.		* Flooring.
	* Glulam.		* Glulam.
		+	* Joist.
	* Laminated veneer lumber LVL.		* Laminated veneer lumber LVL.
	* Nogging.		* Nogging.

Designing Buildings at 15:08, 30 September 2016

2016-09-30T15:08:22Z

← Older revision		Revision as of 15:08, 30 September 2016
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	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===

		+	* Batten.
		+	* Brander.
	* Cross-laminated timber.		* Cross-laminated timber.
	* Dwang.		* Dwang.
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	* Glulam.		* Glulam.
	* Laminated veneer lumber LVL.		* Laminated veneer lumber LVL.
		+	* Nogging.
	* Plenum.		* Plenum.
	* Plywood.		* Plywood.

81.159.83.229 at 14:58, 30 September 2016

2016-09-30T14:58:26Z

← Older revision		Revision as of 14:58, 30 September 2016
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	Herringbone struts can be made of timber or pre-galvanised mild steel. They are sometimes used as an alternative to solid block bridging (or noggins / dwangs), particularly for long-span domestic floors. They are generally installed at the centre of a span when floor joists exceed 2.5 m. Spans exceeding 4.5 m may require two rows spaced at 1/3 and 2/3 span.		Herringbone struts can be made of timber or pre-galvanised mild steel. They are sometimes used as an alternative to solid block bridging (or noggins / dwangs), particularly for long-span domestic floors. They are generally installed at the centre of a span when floor joists exceed 2.5 m. Spans exceeding 4.5 m may require two rows spaced at 1/3 and 2/3 span.
		+
		+	Timber herringbone strutting should be at least 38 x 38mm timber and can only be used where the spacing between the joists is less than three times the depth of the joist.

	They may be the preferred option if there is a lot of pipework or cabling to accommodate between joists, as they reduce the amount of drilling that would be required through solid noggings, which would weaken the floor.		They may be the preferred option if there is a lot of pipework or cabling to accommodate between joists, as they reduce the amount of drilling that would be required through solid noggings, which would weaken the floor.

Designing Buildings at 10:33, 26 September 2016

2016-09-26T10:33:43Z

← Older revision		Revision as of 10:33, 26 September 2016
Line 18:		Line 18:
	* Glulam.		* Glulam.
	* Laminated veneer lumber LVL.		* Laminated veneer lumber LVL.
−	* Nogging.
	* Plenum.		* Plenum.
	* Plywood.		* Plywood.

Designing Buildings at 10:32, 26 September 2016

2016-09-26T10:32:56Z

← Older revision		Revision as of 10:32, 26 September 2016
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	* Cross-laminated timber.		* Cross-laminated timber.
		+	* Dwang.
	* Flooring.		* Flooring.
	* Glulam.		* Glulam.
	* Laminated veneer lumber LVL.		* Laminated veneer lumber LVL.
		+	* Nogging.
	* Plenum.		* Plenum.
	* Plywood.		* Plywood.