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Keystone CFS/K-70 Extra Heavy Duty Cavity Wall Lintel 3300mm

SKU

KCFS733

£305.80 £254.83

Product Information

Keystone CFS/K-70 cavity wall lintel, length 3300mm (10ft 10in), designed for 70-85mm cavity widths.
Extra heavy duty load capacity, perfect for supporting large openings in structural walls.
Recommended for builders and contractors requiring durable lintels on serious projects.
Ensure all horizontal and perpendicular joints are fully mortared for maximum strength.
Lintel must be propped during installation to speed up construction and ensure safety.

Details

The Keystone CFS/K-70 3300mm cavity wall lintel is engineered for extra heavy duty applications where robust support is essential. Suitable for builders, developers and site managers tackling cavity walls with widths between 70 and 85mm, this lintel offers reliable load-bearing performance for demanding structural openings. Please note, all mortar joints must be fully filled and lintels should be propped during installation for best results.

Application

This lintel is ideal for supporting large openings such as windows and doors in cavity walls with a 70-85mm gap. It distributes heavy loads evenly over the cavity, ensuring structural integrity in brick and block constructions. Commonly specified on commercial and residential projects where extra heavy duty performance is required, it suits contractors and site teams needing dependable, time-efficient installation.

Dimension

Length: 3300mm (10ft 10in)
Height: 229mm (9in)
Width: 263mm (10¼in)
Weight: 67.12kg

Material

High-strength steel (specific composition as per Keystone specifications)
Protective coating to resist corrosion on site

Type

Cavity wall lintel – extra heavy duty load-bearing lintel for structural support

Ensure all perpendicular and horizontal joints are filled with mortar before installation. Place a mortar bed on top of the blockwork prior to laying floor units to distribute loads evenly. Lintels should be propped during installation to facilitate construction speed and safety. For any technical queries or project-specific advice, please contact our sales office.

More Information

More Information
Type	Cavity Wall Lintels
Loading	Extra Heavy Duty
Cavity Size	70-85mm
Length	3300mm
Weight	67.120000
Manufacturer	Keystone
Sap Id	KCFS733

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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