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Keystone HDBOX/K-200 Heavy Duty Solid Wall Box Lintel 1350mm INS

SKU

KHBX2135INS

£118.70 £98.92

Product Information

Keystone HDBOX/K-200 insulated box lintel, 1350mm (4ft 5in) length for solid 200mm (8in) walls.
Designed for heavy duty applications, supporting concrete floors and point loads reliably.
Built-in insulation enhances thermal efficiency for compliant wall construction.
Perforated design provides excellent plaster key for secure finishes.
Box lintels require a minimum 150mm bearing on each end; bedding on mortar essential.

Details

The Keystone HDBOX/K-200 Heavy Duty Solid Wall Box Lintel 1350mm INS is engineered for trade professionals tackling serious structural openings in 200mm solid masonry walls. Its insulated core offers enhanced thermal performance, making it a smart choice where energy efficiency is a priority. Please note, box lintels must be properly bedded and supported on site to perform as intended.

Application

This box lintel is ideal for supporting heavy loads such as concrete floors and concentrated point loads above openings in solid brick or block walls. The insulated version (INS) improves the thermal integrity of the building envelope without compromising strength. It is commonly used by builders and site managers on projects requiring robust lintel solutions that meet both structural and energy standards.

Dimension

Length: 1350mm (4ft 5in)
Height: 150mm (6in)
Width: 200mm (8in)

Material

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

Type

Heavy duty box lintel for solid masonry walls

For correct installation, ensure a minimum bearing length of 150mm on each side of the opening with mortar bedding. The lintel is designed to carry the full wet masonry load immediately after placement, but propping is recommended to speed up construction and enhance safety. For further technical guidance, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Heavy Duty
Length	1350mm
Weight	17.330000
Manufacturer	Keystone
Sap Id	KHBX2135INS

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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