Do I Need Lintels? ... If there is sufficient support to accommodate new windows or doors, you will not need to install additional lintels. However, they are often required under building codes. What's more, if your builder is less than honourable, they may advise you that lintels are not required in order to cut corners.

Do all windows need a lintel?

1. Do we have to fit lintels to every window and door? In new build; yes. Anything under the current regulations, a lintel must be fitted, and the builder will do that.

What size window needs a lintel?

Lintels are required for all openings over timber frames greater than 600mm in width, & for all openings over steel frames greater than 900mm.