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Keystone HDBOX/K-150 Heavy Duty Solid Wall Box Lintel 2100mm INS

SKU

KHBX1521INS

£147.77 £123.14

Product Information

Keystone HDBOX/K-150 lintel, 2100mm (6ft 11in) length for 150mm (6in) solid walls
Designed for heavy duty load conditions, supporting concrete floors and point loads on-site
Includes insulation ('INS' version) to enhance thermal efficiency in building envelopes
Perforated box design provides excellent plaster key for finishing
Must be bedded on mortar with minimum 150mm end bearing; lintels are supplied individually

Details

The Keystone HDBOX/K-150 INS is a robust, insulated box lintel specifically engineered for use in 150mm solid masonry walls where heavy duty loading is required. Ideal for builders, contractors, and site managers tackling serious structural openings, this lintel offers reliable support for concrete floors and concentrated point loads. Please note, lintels must be bedded properly with mortar and have the recommended end bearing to ensure performance.

Application

This heavy duty box lintel is suited for load-bearing openings in solid brick or block walls 150mm thick. Its insulated design improves thermal performance, making it a practical choice for projects where energy efficiency is critical. The perforated surface allows plaster to key in securely, streamlining finishing trades. It’s essential to provide a minimum 150mm bearing each side and prop lintels during installation to maintain structural integrity and speed up construction.

Dimension

Length: 2100mm (6ft 11in)
Height: 150mm (6in)
Width: 145mm (5.7in)

Material

Galvanised steel with integrated insulation

Type

Heavy duty insulated box lintel for solid masonry walls

All information is provided as a guide. For technical assistance or specific site requirements, please contact our sales team directly.

More Information

More Information
Type	Box Lintels
Loading	Heavy Duty
Length	2100mm
Weight	35.690000
Manufacturer	Keystone
Sap Id	KHBX1521INS

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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