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Keystone BOX/K-150 Solid Wall Box Lintel 1800mm INS

SKU

KBX1518INS

£70.56 £58.80

Product Information

Keystone BOX/K-150 Solid Wall Box Lintel – 1800mm (5ft 11in) length for 150mm (6in) solid walls
Insulated version (INS) improves thermal efficiency on-site
Designed for standard load support of internal openings with full wet masonry load capacity
Perforated design provides excellent plaster key for finishing
Must be installed with minimum 150mm bearing each side, bedded on mortar; lintels are propped during construction for safety and speed

Details

The Keystone BOX/K-150 Solid Wall Box Lintel 1800mm INS is engineered for builders and contractors requiring dependable support for internal openings in 150mm wide solid walls. This insulated lintel enhances thermal performance without compromising strength, making it an excellent choice for projects prioritising energy efficiency and structural integrity. Please note, lintels must be installed with proper bearing and support as outlined below.

Application

This box lintel is ideal for supporting standard loads over internal wall openings such as doorways and windows within solid masonry walls measuring between 100mm and 215mm thick. Its robust design carries the full weight of wet masonry immediately after installation, speeding up site progress. The perforations along the lintel length act as a plaster key, ensuring a secure and seamless finish for plasterers and decorators. Suitable for both new builds and renovations where reliable, insulated support is required.

Dimension

Length: 1800mm (5ft 11in)
Height: 150mm (6in)
Width: 145mm (5.7in)
Designed for wall thicknesses from 100mm to 215mm

Material

Steel lintel with integrated insulation layer for improved thermal performance
Perforated surface to aid plaster adhesion

Type

Box lintel suitable for solid masonry walls
Standard duty load-bearing structural element

Important: Keystone BOX Lintels require a minimum end bearing of 150mm on each side, bedded on mortar. They should be propped during construction to facilitate safe and efficient building progress. All product details are provided as a guide; please consult our sales team for specific project advice.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	1800mm
Weight	14.470000
Manufacturer	Keystone
Sap Id	KBX1518INS

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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