Skip to the beginning of the images gallery

Keystone BOX/K-150 Solid Wall Box Lintel 2700mm INS

SKU

KBX1527INS

£114.84 £95.70

Product Information

Keystone BOX/K-150 Solid Wall Box Lintel, 2700mm (8ft 10in) length for solid wall openings
Designed for 150mm (6in) wide solid walls, supporting standard load internal openings
Includes integral insulation for enhanced thermal performance on site
Perforated design provides a strong key for plaster finish
Minimum 150mm end bearing required; lintels must be bedded on mortar and propped during construction

Details

The Keystone BOX/K-150 2700mm INS lintel is a specialist insulated box lintel engineered for builders and contractors working with 150mm solid walls. This product combines structural reliability with enhanced thermal efficiency, making it an excellent choice for internal openings where both strength and insulation are required. Please note the lintel must be installed with a minimum 150mm bearing on each side and propped to ensure correct curing.

Application

This insulated box lintel supports standard loads above internal openings in solid masonry walls measuring 150mm thick. Its perforated surface acts as a plaster key, ensuring a secure finish once plastered. The integral insulation improves thermal performance, helping meet building regulations and reduce thermal bridging in structural openings. Suitable for use in residential and commercial projects where reliable lintel support and insulation are priorities.

Dimension

Length: 2700mm (8ft 10in)
Height: 150mm (6in)
Width: 145mm (5.7in)
Designed for wall thicknesses of 100-215mm

Material

Steel with integral insulation layer
Perforated outer surface for plaster key

Type

Insulated box lintel for solid wall applications
Standard duty structural lintel

All Keystone box lintels require a minimum end bearing of 150mm on each side and must be bedded on mortar. It is advisable to prop lintels during installation to facilitate construction speed and ensure proper load distribution. For further technical advice or assistance, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	2700mm
Weight	27.130000
Manufacturer	Keystone
Sap Id	KBX1527INS

Customer Reviews

No reviews yet on this product

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