Skip to the beginning of the images gallery

Keystone HDBOX/K-100 Heavy Duty Solid Wall Box Lintel 1800mm INS

SKU

KHBX118INS

£131.70 £109.75

Product Information

Keystone HDBOX/K-100 insulated box lintel, 1800mm (5ft 11in) length
Designed for heavy duty loading in 100mm solid walls, perfect for concrete floors and point loads
Includes integrated insulation to enhance thermal performance on site
Perforated design offers excellent plaster key for a secure finish
Box lintel requires minimum 150mm end bearing on each side, bedded on mortar

Details

The Keystone HDBOX/K-100 1800mm INS is a heavy duty box lintel engineered for 100mm wide solid wall applications. This insulated lintel is a reliable choice for builders and contractors requiring robust support for concrete floors and concentrated point loads, while also improving the thermal efficiency of the structure. Please note, box lintels must be correctly bedded and supported as detailed below.

Application

Specifically designed for solid masonry walls, this lintel carries the full weight of wet masonry immediately upon installation, making it ideal for use in structural openings such as doors and windows where heavy duty load support is essential. Its insulated design helps meet thermal performance requirements on modern builds. The perforated surface ensures a strong plaster key, providing a durable and neat finish.

Dimension

Length: 1800mm (5ft 11in)
Height: 150mm (5.9in)
Width: 95mm (3.7in)

Material

Galvanised steel with integrated insulation

Type

Heavy duty solid wall box lintel with insulation

Important: Box lintels require a minimum bearing length of 150mm on each side, supported on mortar. It is recommended to prop lintels during construction to speed up the build process. For further technical advice or project support, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Heavy Duty
Length	1800mm
Weight	18.510000
Manufacturer	Keystone
Sap Id	KHBX118INS

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