Single-hung means the lower sash moves and the upper sash stays put. Double-hung means both move. The rough opening can look the same in a photo.
The type mark is the difference. A replacement conversation from a house will not settle a commercial schedule. Read the mark, then send it.
Product sourcing
Product sourcing for commercial windows follows the opening type, sizes, frame finish, and specification section. Division 8 USA is a Houston supplier of commercial architectural products for hospitality, multifamily, commercial, student housing, and senior living. The services are specification review, product sourcing, project quotations, procurement coordination, and delivery coordination.
What to send
- Opening type from the type mark
- Width and height for each mark
- Frame finish
- Glazing, when the specification requires it
- Quantity and project location
What this note will not do
Manufacturer figures printed on a product page are reference values to confirm. They are not Division 8 USA test reports.
More on commercial windows. The five services are on product sourcing. Send the specification for a project quotation.
What is the difference between single-hung and double-hung?
Single-hung moves the lower sash only. Double-hung moves both. Send the mark from the schedule.
