Skip to product information
1 of 2

Keystone Lintels

Keystone C/W Extreme Lintel X/K-50 4800mm KX548 KX548

Keystone C/W Extreme Lintel X/K-50 4800mm KX548 KX548

Regular price £2,555.78 GBP
Regular price Sale price £2,555.78 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.
Quantity

This cavity wall lintel is constructed from galvanised steel with a length of 4800mm, making it suitable for supporting openings in larger masonry cavity walls. It is designed for use in applications where high load-bearing capacity is required, such as above wide windows, doors, or other structural openings.

Often used in new build or extension projects, this lintel fits between inner and outer masonry leaves with a cavity width of 50-65mm. Installation is typically carried out by bricklayers or general builders in residential, commercial, or industrial settings where an extreme duty support is necessary.

Trade accounts with 30-day credit available — your prices, fast reordering.
30-day returns · UK delivery available at checkout.
Quotes & purchase orders Request a quote Upload a quote form, PO or notes for manual trade pricing.
Secure checkoutAmerican Express Apple Pay Diners ClubDiscoverGoogle Pay KlarnaMaestroMastercard PayPalShop Pay Union PayVisa
View full details

Specifications

BrandKeystone Lintels
Manufacturer part no.KX548
cavity width compatibility50-65mm
composite action requiredNo
height thickness or depth213mm
inner leaf supportNo
integrated dpcNo
length4800mm
lintel materialPre-Galvanised Steel
lintel typeCavity
materialGalvanised Steel
outer leaf supportNo
thermal break includedNo
width244mm
GTIN / Barcode5023545141545