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Keystone BOX/K-150 Solid Wall Box Lintel 4800mm INS

SKU

KBX1548INS

£363.12 £302.60

Product Information

Keystone BOX/K-150 Solid Wall Box Lintel measures 4800mm (15ft 9in) long, ideal for 150mm solid walls.
Designed for standard load-bearing applications, supporting internal masonry openings reliably.
Includes insulation ('INS' version) for enhanced thermal efficiency on site.
Perforated design provides a secure plaster key for finishing trades.
Minimum 150mm bearing on each end required; lintels must be bedded on mortar and propped during construction for safety.

Details

The Keystone BOX/K-150 Solid Wall Box Lintel 4800mm INS is engineered for builders and site managers working with 150mm solid walls. This lintel offers dependable structural support for internal openings while enhancing thermal performance thanks to its built-in insulation. Please note, lintels are supplied in set lengths and require proper bearing and bedding for optimal performance.

Application

Specifically designed for internal masonry openings in solid walls ranging from 100mm to 215mm thickness, the Keystone BOX/K-150 lintel carries standard loads effectively. Its perforated surface acts as a plaster key, ensuring smooth finishing. Suitable for both new builds and refurbishment projects, it supports wet masonry immediately after installation. Proper installation includes a minimum 150mm bearing at each end, bedding on mortar, and temporary propping to maintain safety and build speed.

Dimension

Length: 4800mm (15ft 9in)
Height: 215mm (8½in)
Width: 145mm (5¾in)
Wall thickness compatibility: 100–215mm

Material

Galvanised steel with integrated insulation layer

Type

Box lintel for solid wall applications

All lintels must be installed with minimum 150mm end bearing and properly bedded on mortar. Temporary propping is recommended to facilitate faster and safer construction. For detailed guidance or bespoke requirements, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	4800mm
Weight	81.580000
Manufacturer	Keystone
Sap Id	KBX1548INS

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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