What does dual rod mean for these drapes?

The panel is made for a two-track rod, so the main drape hangs on the front track and a sheer or liner can hang on the back. That lets you filter light and keep privacy without closing the heavy panel.

How do I measure for custom pinch pleat drapes?

Measure the rod width and the drop from the rod to where you want the hem, and decide on fullness before ordering. Pinch pleat panels are usually made at roughly double the coverage width, so give the maker your finished rod width rather than the window glass width.

Are these blackout curtains?

Not on their own. The drape is a fabric panel; blackout comes from adding a blackout liner on the rear track. Ask for a liner if you need room darkening for a bedroom.

Can I hang them on a regular single rod?

They are built for a dual rod, so a single rod loses the layering the design is meant for. A double bracket rod is the right match.

How do pinch pleats compare with grommet or tab-top curtains?

Pinch pleats give a more formal, structured look and hold their folds, while grommet and tab-top panels are easier to slide and cheaper ready-made. Pinch pleats suit formal rooms; grommets suit casual, quick-change setups.