Galvanizing and metal finishing services

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Product Directory

Click on the product codes below. 

Cavity Size Standard Duty Standard/Medium Duty Medium Duty Heavy Duty Extra Heavy Duty Ultra Heavy Duty Extreme Heavy Duty
50-65mm CB50 CB50HD MD50 HD50 HDX50 SX50 XHD50
70-85mm CB70 CB70HD MD70 HD70 HDX70 SX70 XHD70
90-105mm CB90 CB90HD MD90 HD90 HDX90 SX90 XHD90
110-125mm CB110 MD110 HD110 HDX110 SX110 XHD110
130-145mm CB130 MD130 HD130 HDX130 SX130 XHD130
150-165mm CB150 MD150 HD150 HDX150 SX150 XHD150

 

 

 

 

 

 

Cavity Size Standard Duty <1800mm Standard Duty 1950-2400mm Standard Duty >2550mm Heavy Duty <1800mm Heavy Duty <1950mm Extra Heavy Duty <1800mm Extra Heavy Duty >2550mm
90mm ST90 ST90 ST90 ST90HD ST90HD ST90HDX ST90HDX
110mm ST110 ST110 ST110 ST110HD ST110HD ST110HDX ST110HDX
130mm ST130 ST130 ST130 ST130HD ST130HD ST130HDX ST130HDX
150mm ST150 ST150 ST150 ST150HD ST150HD ST150HDX ST150HDX

 

 

Cavity Size Standard Duty Medium Duty Heavy Duty Extra Heavy Duty Heavy Duty Extra Heavy Duty Extreme Heavy Duty
200-215mm OB190 SBL200 SBL200HD SBL200XHD DC200 DC200HDX SW200

 

 

 

Cavity Size Light Duty   Standard Duty  Heavy Duty  Extra Heavy Duty  Extreme Heavy Duty  Standard  Duty Extra Heavy Duty  Extreme Heavy Duty 
100mm MBL LA LAHD LAHDX LAXHD EV100 EV100HDX EV100XHD

 

 

 

Box Lintels / Loadbearing Walls

Cavity Size Standard Duty Heavy Duty Extra Heavy Duty Extreme Heavy Duty
100mm SB100 SB100HD SB100HDX SB100XHD

* N.B. Profiles shown are indicative and change with the length for a given load duty classification. Height of profile illustrated is shown in brackets. Please consult our tech team for more information.

 

 

Cavity Size Standard Duty Heavy Duty Extra Heavy Duty Extreme Heavy Duty
140mm SB140 SB140HD SB140HDX SB140XHD

* N.B. Profiles shown are indicative and change with the length for a given load duty classification. Height of profile illustrated is shown in brackets. Please consult our tech team for more information.

 

Non-Loadbearing Walls

Cavity Size Light Duty Medium Duty
100mm INT100 INT100HD

 

 

Cavity Size 50-85 Cavity  90-125 Cavity  130-175 Cavity 
No outer leaf above Inner leaf 100mm CBEV50 CBEV90 CBEV150

 

 

Cavity Size Standard Duty   Heavy Duty  Extra Heavy Duty 
50-65mm TF50 TF50HD TF50HDX
70-85mm TF70 TF70HD TF70HDX
90-105mm TF90 TF90HD TF90HDX
110-125mm TF110 TF110HD TF110HDX
130-145mm TF130 TF130HD TF130HDX
150-165mm TF150 TF150HD TF150HDX

 

 

Cavity Size Product 1  Product 2 Product 3  Product 4 Product 5 Product 6 Product 7 Product 8
Bespoke Options Sorrento Roma Verona Pisa Napoli Siena Milano Firenza (Glazed)

 

 

Cavity Size Product 1    Product 2 Product 3 Product 4 Product 5 Product 6 Product 7 Product 8
Bespoke Size Apex Arch Lintel Gothic Arch Lintel  Semi-Circular Arch Lintel  Segmental Arch Lintel  Arch Lintel  Extended Arch Lintel  Mitred Lintel Curved-on-Plan Lintel

 

 

 

Cavity Size Products
450-3350mm Archformer
900-4500mm Soffit Cover

 

 

 

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Products in Our Range

Part of the Birtley Group

Birtley began life as Birtley Building Products in 1965, based at the current site in County Durham. Originally a steel fabricator for the area’s mining and power generation industries, the company made its first steel lintels in 1967. Since then, Birtley has grown from reliable local supplier to a UK-wide force in construction design technology and product development.

In 1889, the British Metal Expansion Company was established in Hartlepool. It had sole European rights for the manufacture of expanded metal mesh, mainly for use as reinforcement and lath in the rapidly expanding sector of concrete construction. The business that grew from these early days later changed its name to Expamet.


Acquired by Birtley Group in 2015, Bowater Doors is a nationally-known name synonymous with top quality and imaginative composite residential door design and manufacture.

The product portfolio offers exclusive ranges for trade installers and a retail range providing doors direct to consumer and social housing organisations.

Birtley Galvanizing boasts one of the most impressive galvanizing plants in Europe. The plant achieves the finest quality hot-dip galvanized zinc protective coatings to BS EN ISO 1461. Using state-of-the-art technology the plant processes steel products using a computer controlled, automated handling system, enabling Birtley Galvanizing to provide full project solutions to many industries.