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Keystone BOX/K-150 Solid Wall Box Lintel 2100mm INS

SKU

KBX1521INS

£89.56 £74.63

Product Information

Keystone BOX/K-150 Solid Wall Box Lintel with insulation, 2100mm (6ft 10in) length
Designed for solid walls 100-215mm thick, ideal for internal openings
Extra insulation layer improves thermal efficiency on site
Perforated design provides a strong plaster key for secure finishes
Minimum 150mm end bearing required; lintel must be bedded on mortar

Details

The Keystone BOX/K-150 Insulated Solid Wall Box Lintel is engineered for builders and site managers working with 150mm solid walls, delivering dependable support for internal openings. Featuring integrated insulation, this lintel enhances thermal performance while maintaining structural integrity. Please note, lintels require a minimum 150mm bearing on each side and must be bedded on mortar to ensure proper installation.

Application

This lintel is designed primarily to support brick or blockwork above internal openings such as doorways and windows in solid wall constructions between 100mm and 215mm thick. Its perforated surface provides a reliable key for plaster finishes, and the insulated core helps meet modern thermal standards, making it a practical choice for energy-conscious builds. Propping during installation is recommended to speed up construction and ensure safety.

Dimension

Length: 2100mm (6ft 10in)
Height: 150mm (6in)
Width: 145mm (5.7in)

Material

Galvanised steel with integrated insulation

Type

Standard duty insulated box lintel for solid walls

All dimensions are manufactured in 150mm increments. For tailored advice or detailed technical information, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	2100mm
Weight	21.100000
Manufacturer	Keystone
Sap Id	KBX1521INS

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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