Looking to expand your window and door vocabulary or impress your friends with a new industry term?

Derived from the Latin word fenestra, which means windows, fenestration refers to any opening in a structure, including windows, doors, skylights, vents, wall panels, storefronts, curtain walls and more. Associations such as Fenestration Canada and the National Fenestration Rating Council help keep the bar high for window and door building and material standards by providing information, resources and industry support. Ask your JELD-WEN representative about how we can help you meet your fenestration needs with high-quality windows, doors and accessories.

For more information about fenestration standards, go to these links:



FAQ Friday is a weekly feature where we answer Frequently Asked Questions about our products, service or industry. To see other FAQs we’ve answered, visit our FAQ page. If you have a question you don’t see an answer for, just ask in a comment or contact us.


Write A Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.