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Keystone S/K-70 Standard Duty Cavity Wall Lintel 4350mm

SKU

KS7435

£369.11 £307.59

Product Information

Keystone S/K-70 cavity wall lintel, length 4350mm (14ft 3in), standard duty for general load-bearing openings.
Designed to support cavity widths from 70mm to 85mm (2.75in to 3.35in), ideal for typical cavity wall construction.
Constructed to ensure blockwork fits tightly against the lintel’s inner face for secure load transfer.
Recommended to prop lintels during installation to maintain structural integrity and speed up site work.
Note: Mortar bed must be placed on top of blockwork before laying floor units to evenly distribute load.

Details

The Keystone S/K-70 Standard Duty Cavity Wall Lintel, measuring 4350mm in length, is engineered for builders and contractors needing dependable support over openings in cavity walls with widths between 70mm and 85mm. Its robust design ensures reliable load distribution for standard structural applications. Please note, mortar bedding and propping are essential for correct installation.

Application

This lintel is typically used in cavity wall construction to span openings such as doors and windows where the cavity width falls within the 70mm to 85mm range. It supports the masonry above, transferring loads safely to the surrounding structure. Builders should ensure blockwork is tightly built against the lintel’s inner face and that a mortar bed is applied on top of the blockwork prior to laying floor units, providing even load distribution. Propping the lintel during installation is recommended to maintain site efficiency and structural safety.

Dimension

Length: 4350mm (14ft 3in)
Height: 204mm (8in)
Width: 263mm (10.35in)
Cavity width suitability: 70mm to 85mm (2.75in to 3.35in)

Material

Manufactured from high-strength concrete designed for structural support in masonry walls.

Type

Cavity wall lintel – standard duty load classification.

More Information

More Information
Type	Cavity Wall Lintels
Loading	Standard Duty
Cavity Size	70-85mm
Length	4350mm
Weight	75.530000
Manufacturer	Keystone
Sap Id	KS7435

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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