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Keystone X/K-70 Extreme Duty Cavity Wall Lintel 3900mm

SKU

KX739

£1,107.50 £922.92

Product Information

Keystone X/K-70 lintel measuring 3900mm (12ft 9in) length, designed for extreme load applications.
Engineered for cavity wall widths from 70mm to 85mm (2.75" to 3.35") ensuring precise fit.
Galvanised steel flange provides superior corrosion resistance for lasting durability.
Recommended lateral restraint and propping to achieve full load capacity and speed up installation.
All technical details are a guide; please contact our sales team for expert advice before ordering.

Details

The Keystone X/K-70 Extreme Duty Cavity Wall Lintel at 3900mm length is built for contractors and site managers handling heavy structural loads on cavity walls with widths between 70mm and 85mm. Its galvanised steel flange offers excellent protection against corrosion, making it a dependable choice for long-term projects. Please note that proper lateral restraint and propping are essential to meet the specified load ratings and to facilitate efficient construction. For precise guidance, our sales office is available to assist.

Application

This lintel is designed to support large openings such as wide window or door frames in cavity wall constructions where extreme loading conditions apply. It is suitable for use in residential, commercial, and industrial build projects requiring robust structural support. The galvanised flange ensures the lintel withstands harsh site conditions, while proper installation techniques including lateral restraint and temporary propping are recommended to maximise performance and safety on site.

Dimension

Length: 3900mm (12ft 9in)
Height: 213mm (8.4in)
Width: 263mm (10.3in)
Designed for cavity widths: 70-85mm (2.75" - 3.35")
Weight: 171.86kg

Material

Galvanised steel flange for corrosion resistance
High strength steel for extreme duty structural support

Type

Extreme duty cavity wall lintel

Images are for illustration purposes only. For detailed technical specifications or bespoke advice, please contact Condell Building Supplies' sales team.

More Information

More Information
Type	Cavity Wall Lintels
Loading	Extreme Duty
Cavity Size	70-85mm
Length	3900mm
Weight	171.860000
Manufacturer	Keystone
Sap Id	KX739

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Delivery Information

Delivery availability

We deliver to most mainland UK addresses. Some postcode areas are excluded – please see the full list below.

Delivery charges

Delivery costs vary depending on your location, the products ordered, and the delivery method selected. All delivery charges are calculated clearly at checkout.

Fuel Surcharge

Information on our added Fuel Surcharge can be found at https://condell-ltd.com/fuel-surcharge-notification

Delivery dates

You can request a preferred delivery date at checkout. While we aim to meet this wherever possible, availability may depend on stock levels and third-party delivery schedules. If your chosen date is unavailable, a member of our team will contact you to arrange an alternative.

Delivery method

All deliveries are made kerbside as standard. For health and safety reasons, drivers are unable to carry materials beyond the kerb. If you have specific access requirements, please contact us before placing your order.

Delivery exclusions

We currently do not deliver to the following postcode areas:

AB16, AB21–22, AB30–AB38, AB41–AB56, BT1–BT94, CA2, CA15, CA28, DD1, DD8, DD9, DG1, DG2, DG10–DG14, DG16, FK18–FK20, GY1–GY9, HS1–HS9, IM1–IM9, IV1–IV5, IV7, IV12–IV13, IV21–IV28, IV30–IV36, IV40–IV56, JE1–JE4, KA1, KA4–KA6, KA14–KA15, KA18–KA21, KA27–KA30, KW1–KW3, KW6–KW17, KY6–KY10, KY13–KY16, LL49, LL58–LL62, LL64–LL78, PA17–PA78, PH11, PH19–PH26, PH30–PH33, PH35–PH38, PH40–PH44, PH49–PH50, PO30–PO41, SA68, SA71, ZE1–ZE3

Important delivery terms

Shortages must be reported within 48 hours and noted on delivery paperwork
All deliveries must be signed for; redelivery charges may apply
Deferred deliveries may incur storage charges
Collected orders are not subject to delivery charges
Returns are subject to a 25% restocking fee (delivery charges excluded)
Made-to-measure items are non-refundable
Reasonable access to the delivery point must be available; additional charges may apply