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Keystone B/K-70 Single Leaf Cavity Wall Lintel 3600mm

SKU

KB736

£213.49 £177.91

Product Information

Keystone B/K-70 single leaf cavity wall lintel, 3600mm (11ft 10in) length for robust structural support.
Designed for use with inner leaf concrete lintels, ensuring stability on serious projects.
Requires tight fitting timber batten to prevent twisting and maintain integrity on site.
Suitable for cavity widths of 70mm, part of the B/K range offering options for 50mm and 90mm cavities.
Standard duty load with a height of 225mm and 3.2mm thickness for dependable performance.

Details

The Keystone B/K-70 single leaf cavity wall lintel is engineered for builders and contractors needing reliable, standard duty lintels to support cavity walls. At 3600mm long, it provides a strong, consistent bearing across openings and is designed for use alongside inner leaf concrete lintels. Please note, the lintel must be installed with a tight fitting timber batten to prevent twisting during construction.

Application

This lintel is ideal for cavity wall construction where a single leaf lintel is required to support brickwork or blockwork above window and door openings. It is commonly used in residential and commercial projects where cavity widths are 70mm, ensuring compatibility with standard inner leaf concrete lintels. The product’s design facilitates quick, secure installation, helping site teams maintain build quality and project timelines.

Dimension

Length: 3600mm (11ft 10in)
Height: 225mm (8.9in)
Thickness: 3.2mm
Designed for 70mm cavity widths

Material

Galvanised steel for corrosion resistance and durability

Type

Single leaf cavity wall lintel

Ensure the lintel is used with a tight fitting timber batten as recommended to prevent twisting. This product is part of the B/K range, available for different cavity sizes including 50mm and 90mm options.

More Information

More Information
Type	Single Leaf Lintels
Loading	Standard Duty
Cavity Size	70-85mm
Length	3600mm
Weight	36.170000
Manufacturer	Keystone
Sap Id	KB736

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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