Catnic

Catnic BSD100 100mm Standard Duty Box Lintel

£59.00
Box Lintel

£49.16 (ex VAT)

VAT included. Shipping calculated at checkout.
4.4
Product Availability
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The Catnic BSD100 100mm box lintel is a standard-duty steel lintel for openings in 100mm internal brick or block walls, including load-bearing construction. Its box-section profile is designed to accommodate specified masonry, floor and roof loads, including point loads where appropriate. Manufactured from galvanised steel with Catnic's black Duplex corrosion protection finish, the BSD100 incorporates an integral plaster key and is available in a range of lengths to suit different structural openings.

Catnic BSD100 key features

Internal load-bearing walls

Designed for 100mm internal brick or block masonry walls, including suitable load-bearing applications.

Standard-duty loading

Published safe working loads of 19kN, 20kN, 29kN or 27kN, depending on the selected length.

Versatile structural applications

Can accommodate specified masonry, floor and roof loading conditions, including concrete-floor and point loads where supported by the structural design.

Integral plaster key

Staggered perforations within the box profile provide an integral key for plaster finishing.

Duplex corrosion protection

Galvanised steel with Catnic's black polyester powder coating provides additional corrosion resistance.

Length-dependent profile

The BSD100 is manufactured in different section sizes, with nominal height and weight changing according to lintel length.

Dimensions and specification

Catnic BSD100 technical specifications
Manufacturer Catnic
Product code BSD100
Lintel type Steel box lintel
Duty Standard duty
Wall construction Internal masonry wall
Wall thickness 100mm nominal
Manufacturer's length range 750–4800mm
Nominal end bearing 150mm at each end
Nominal height 143mm or 219mm, depending on length
Safe working load 19–29kN, depending on length
Plaster key Integral
Finish Galvanised steel with black powder coating

BSD100 sizes and safe working loads

The safe working load and section height of the Catnic BSD100 vary according to lintel length. The following figures are taken from Catnic's published technical specifications.

BSD100 length, safe working load and nominal height
Lintel length SWL Nominal height
750–2100mm 19kN 143mm
2250–2700mm 20kN 143mm
2850–3600mm 29kN 219mm
3900–4500mm 29kN 219mm
4800mm 27kN 219mm

Where to use the Catnic BSD100

The BSD100 is designed for 100mm internal solid masonry walls, including internal load-bearing brickwork and blockwork. Unlike lintels intended only for non-load-bearing partitions, the BSD100 can be specified for a broader range of structural loading conditions where its published capacity is sufficient.

Typical loading considerations include masonry above the opening, timber floor or roof loading, concrete floors and concentrated loads. The correct lintel must be selected according to the structural design rather than assuming that every BSD100 length is appropriate for every application.

Choosing the correct BSD100 length

Catnic specifies nominal 150mm end bearings at each end. The required lintel length is normally determined by adding 300mm to the structural opening width.

For example, a 1200mm structural opening would normally require a 1500mm lintel. The selected lintel must also provide sufficient safe working load for the intended construction.

For different loading requirements, compare the following lintels and check their individual safe working load tables:

Browse Wade's 100mm box lintel collection for additional products and available lengths.

Technical downloads

Frequently asked questions

Is the Catnic BSD100 suitable for load-bearing walls?

Yes. Catnic specifies the BSD100 for 100mm internal load-bearing masonry walls. The actual wall construction and applied loads must fall within the selected lintel's design capacity.

What is the safe working load of a BSD100 lintel?

The safe working load depends on lintel length. Catnic publishes ratings from 19kN to 29kN across the range, with a 27kN rating for the 4800mm length. Refer to the loading table above for the applicable length group.

Does the Catnic BSD100 have an integral plaster key?

Yes. The BSD100 has an integral plaster key formed by staggered perforations in its box profile.

How much end bearing does a BSD100 require?

Catnic specifies nominal 150mm end bearings at each end. The correct lintel must also be selected according to the structural loading and opening dimensions.

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Customer Reviews

Overall rating: 4.4 / 5 from 20 reviews.

Was given the wrong delivery date so 2 days annual leave used up unnecessarily! According to the driver is was a mistake ny wade not DX. Eventually got what i ordered but very frustrating experience.

Catnic BSD100 100mm Box Lintel

It was easy to order online, we received a phone call from driver when he was near to deliver and was left in place where we'd asked for it to be delivered.

Catnic BSD100 100mm Box Lintel

Just what I expected. A little late due to transport problems but came good in the end.

Catnic BSD100 100mm Box Lintel

Poor customer service, product didn't arrive on the date it should have, when I chased I was told it was out of stock and would need to wait another week or buy an alternative and wait 3 days. We opted for the alternative as it was time sensitive and that also turned up late. I have requested compensation twice by email and once on the phone and told someone would get back to me and still nothing. Poor customer service!

Catnic BSD100 100mm Box Lintel

5day delivery took 3 weeks , company not responding to emails, zero customer support… Over the phone promised multiple delivery dates which failed every single time

Catnic BSD100 100mm Box Lintel

Brilliant service fast delivery best price I found online slight problem with size rang up change size delivered the the new size next day definitely recommend this company

Catnic BSD100 Standard Duty 100mm Box Lintel

Spot on just the job.

100mm Box Lintel | Standard Duty

Store owner replied: Hi Philip Thank you for reviewing your 100mm Box Lintel Standard Duty. It helps our Community and is appreciated. I am delighted to hear you are happy with your order. Please do not hesitate to contact us if we can help with anything else. Kind regards Neil Thompson Sales & Operations Manager Wade Building Supplies

Excellent thought the process, very helpful and nice people to boot.. makes a change!

100mm Box Lintel | Standard Duty

Store owner replied: Hi Barry Thank you for your review. It helps our Community and is appreciated. I am delighted you are happy with our Service and your Lintel. Please do not hesitate to contact us if we can help with anything else. Neil Thompson Sales & Operations Manager Wade Building Supplies

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Catnic BSD100 100mm Box Lintel by Catnic

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