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Keystone HD/K-90 Heavy Duty Cavity Wall Lintel 3900mm

SKU

KH939

£362.58 £302.15

Product Information

Keystone HD/K-90 lintel, 3900mm (12ft 9in) length for substantial cavity wall openings.
Designed for cavity widths between 90mm and 105mm (3.5"–4.1").
Heavy duty construction supports significant structural loads on site.
Blocks must be built tight against the inner face for optimal performance.
Lintels should be propped during installation to speed up construction and ensure safety.

Details

The Keystone HD/K-90 heavy duty cavity wall lintel is engineered for builders, contractors, and site managers dealing with demanding structural openings. With a length of 3900mm, it’s specifically designed to support cavity walls with widths from 90mm to 105mm, making it a reliable choice for robust building projects. Please note, proper installation involves tight blockwork against the inner face and propping lintels to maintain site efficiency and safety.

Application

This lintel is ideal for supporting load-bearing openings such as doorways and windows in cavity wall constructions. It ensures even load distribution across the lintel, especially when a mortar bed is placed atop the blockwork before floor units are laid. Its heavy duty rating makes it well suited for residential and commercial developments where structural integrity is critical.

Dimension

Length: 3900mm (12ft 9in)
Height: 203mm (8in)
Width: 283mm (11in)
Cavity width range: 90-105mm (3.5"–4.1")
Weight: 64.75kg

Material

Manufactured from high strength concrete for durability and load-bearing capacity.

Type

Cavity wall lintel
Heavy duty structural support

For best results, ensure blockwork is built tight against the lintel’s inner face and use a mortar bed on top of the blockwork before installing floor units to distribute the load evenly. It is also recommended to prop the lintel during installation to facilitate safe and efficient construction. For any technical queries or further assistance, please contact our sales team.

More Information

More Information
Type	Cavity Wall Lintels
Loading	Heavy Duty
Cavity Size	90-105mm
Length	3900mm
Weight	64.750000
Manufacturer	Keystone
Sap Id	KH939

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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