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Keystone B/K-70 Single Leaf Cavity Wall Lintel 4200mm

SKU

KB742

£248.44 £207.03

Product Information

Keystone B/K-70 single leaf cavity wall lintel with a length of 4200mm (13ft 9in) and height of 225mm (8¾in).
Designed for use alongside inner leaf concrete lintels to provide dependable structural support.
Requires a tight-fitting timber batten to prevent twisting during installation.
Available in various cavity widths including B/K-50, B/K-70, and B/K-90 to suit different wall configurations.
Standard duty load rating, ideal for general building and trade applications.

Details

The Keystone B/K-70 single leaf cavity wall lintel is engineered for tradespeople and site managers who demand reliability and precision in structural components. At 4200mm long and 225mm high, this lintel offers robust support for cavity walls, working in conjunction with inner leaf concrete lintels. Please note that the lintel must be installed with a tight-fitting timber batten to prevent twisting and ensure long-term stability.

Application

Specifically designed for cavity wall construction, the B/K-70 lintel supports openings such as windows and doors by bridging the cavity and bearing the load above. It is commonly used in residential and commercial developments where a standard duty load is sufficient. The lintel’s compatibility with various cavity widths makes it a versatile choice for different wall builds, ensuring a secure and lasting fit.

Dimension

Length: 4200mm (13ft 9in)
Height: 225mm (8¾in)
Thickness: 3.2mm

Material

Steel suitable for structural building use

Type

Single leaf cavity wall lintel

This product is supplied as a single lintel and must be used with a timber batten for proper installation. Ensure you specify the correct cavity width model (B/K-50, B/K-70, or B/K-90) to match your wall design.

More Information

More Information
Type	Single Leaf Lintels
Loading	Standard Duty
Cavity Size	70-85mm
Length	4200mm
Weight	42.200000
Manufacturer	Keystone
Sap Id	KB742

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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