For larger windows, horizontal blinds cannot be manufactured as one blind with a single headrail due to the weight of the blinds. In cases like this there are two options for measuring and installing horizontal blinds.

2 on 1 Headrail Horizontal Blinds

First, blinds can be manufactured with 2 separate blinds on one common headrail. This option is two different blinds, each with their own controls, but one common or shared headrail.

Separate Blinds with a Common Valance

The second option is to install two completely separate blinds, each with their own headrails, but have a common valance. The valance will cover both sets of headrails and mounting brackets. The two blinds are then mounted with the center brackets butted up against each other in the center. The width of each blind should add up to the over width of the window.

Both options look the same when the large window blinds are installed. The second option is cheaper because their is typically a surcharge for 2 on 1 or 3 on 1 headrail. The second option can reduce shipping costs on larger blinds.

Blinds Chalet has more than 25 years of experience selling and installing window coverings including horizontal window blinds. Attractive, high quality, and durable blinds and shades to fit any energy saving plan, decorating style, and budget. For information on what types of window shades, accessories, and any other window covering needs, visit
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