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Keystone BOX/K-100 Solid Wall Box Lintel 3000mm INS

SKU

KBX13INS

£162.60 £135.50

Product Information

Keystone BOX/K-100 insulated solid wall lintel, 3000mm (118") length suitable for 100mm to 215mm thick walls.
Engineered for standard duty load-bearing to support internal openings in solid masonry walls.
Includes internal insulation for enhanced thermal performance on site.
Requires minimum 150mm bearing at each end, bedded on mortar for secure installation.
Box lintels carry full wet masonry load immediately; propping recommended to speed up construction.

Details

The Keystone BOX/K-100 Solid Wall Box Lintel 3000mm INS is a specialist lintel designed for builders and contractors working with solid masonry walls between 100mm and 215mm thick. This insulated version incorporates additional thermal insulation to improve energy efficiency, making it an ideal choice for projects where thermal performance matters alongside structural reliability. Please note this lintel requires correct bearing and installation for optimum performance.

Application

This lintel is primarily used to span internal openings in solid masonry walls, supporting the full load of wet brick or blockwork above. Its box design ensures immediate load-bearing capacity once installed. Suitable for standard duty structural needs, it is often specified on residential and commercial builds where thermal bridging must be minimised. Propping during installation is recommended to maintain stability and speed up onsite progress.

Dimension

Length: 3000mm (118")
Wall Width Compatibility: 100mm to 215mm
Height: 215mm
Width: 95mm

Material

Steel lintel with integrated insulation for improved thermal performance

Type

Box lintel for solid masonry walls

Ensure a minimum bearing of 150mm on each end, bedded on mortar for secure and compliant installation. Contact our sales team for technical advice specific to your project requirements.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	3000mm
Weight	39.210000
Manufacturer	Keystone
Sap Id	KBX13INS

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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