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Keystone HDBOX/K-150 Heavy Duty Solid Wall Box Lintel 1200mm INS

SKU

KHBX1512INS

£73.14 £60.95

Product Information

Keystone HDBOX/K-150 INS box lintel, 1200mm (47¼") length for solid 150mm (6") walls
Designed for heavy duty loads including concrete floors and concentrated point loads
Incorporates built-in insulation to improve thermal performance on site
Perforated design provides excellent plaster key for finishing
Box lintels require a minimum 150mm end bearing each side, bedded in mortar

Details

The Keystone HDBOX/K-150 INS is a robust heavy duty box lintel engineered for 150mm solid masonry walls. It’s the trusted choice for builders, contractors, and site managers needing reliable support for concrete floors and heavy point loads, with the added benefit of integral insulation to enhance thermal efficiency. Please note that box lintels require correct installation with a minimum 150mm bearing on each side and must be bedded on mortar.

Application

Specifically designed for heavy duty structural support in solid wall constructions, this box lintel carries the full wet masonry load immediately upon installation. It’s ideal for use over window and door openings where substantial load-bearing is required, including supporting concrete floor slabs and concentrated point loads. The integrated insulation helps meet thermal performance standards without compromising strength. For best results, lintels should be propped during installation to speed up construction and ensure safety.

Dimension

Length: 1200mm (47¼")
Height: 150mm (6")
Width: 145mm (5¾")

Material

Steel box lintel with integral insulation
Perforated steel surface for plaster key

Type

Heavy duty insulated box lintel for solid masonry walls

More Information

More Information
Type	Box Lintels
Loading	Heavy Duty
Length	1200mm
Weight	15.680000
Manufacturer	Keystone
Sap Id	KHBX1512INS

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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