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Keystone HDBOX/K-100 Heavy Duty Solid Wall Box Lintel 750mm INS

SKU

KHBX1075INS

£54.85 £45.71

Product Information

Keystone HDBOX/K-100 insulated box lintel, 750mm (29.5in) length for solid walls.
Designed for heavy duty loads, suitable for concrete floors and point load support.
Includes built-in insulation to enhance thermal performance on site.
Perforated design offers excellent plaster key for secure finishes.
Must have 150mm minimum bearing each side; lintel sold individually and requires bedding on mortar.

Details

The Keystone HDBOX/K-100 750mm INS is a specialist heavy duty box lintel engineered for 100mm thick solid walls. Its integrated insulation improves thermal efficiency, making it a reliable choice for contractors handling demanding structural openings where durability and compliance matter. Please note, lintels must be bedded on mortar with a minimum end bearing of 150mm each side.

Application

This box lintel is designed to carry heavy loads such as concrete floors and point loads typically found in residential and commercial masonry construction. The perforated steel casing provides an effective key for plaster, ensuring seamless finishes. Ideal for site managers and builders requiring robust, insulated support across openings in solid block walls.

Dimension

Length: 750mm (29.5in)
Height: 150mm (5.9in)
Width: 95mm (3.7in)

Material

Galvanised steel with integrated insulation insert

Type

Solid wall box lintel for heavy duty applications

For safe installation, lintels should be propped to speed up construction and ensure load transfer. All technical details are guidelines; please contact our sales team for project-specific advice.

More Information

More Information
Type	Box Lintels
Loading	Heavy Duty
Length	750mm
Weight	7.710000
Manufacturer	Keystone
Sap Id	KHBX1075INS

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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