Generally, most Heavy-Duty Curtain Rods and Decorative Traverse Rods come with between 3 and 4 carriers per linear
foot of rod. That's what we mean when we say "Standard
Number Of Carriers". And, the standard number of carriers is
appropriate for just about every drapery.
While it's uncommon, you can specify the exact number of
carriers you want to have on your rod. That's what we mean
by "Custom Carrier Quantity".
To determine your carrier quantity, just count the pleats on your drapery. Don't forget that one pleat will
attach to the end stop and, typically, two pleats will attach to the Master. So, your carrier quantity will
usually be the number of pleats minus three. But, that formula doesn't always work. And, if you're returning
your fabric to the wall, depending on your return size, you may need to deduct an additional pleat or
two. Using the standard number of carriers is usually your best option.
Extending the drapery header to conceal the track isn't a
function of the carriers, it's a function of your drapery and the
pins you use to attach the fabric to the carriers. Any carrier
that accepts drapery pins will work fine.
Consult with your drapery maker and make sure the drapery is
constructed in a way that will allow the use of extended
pleater pins or long-shank pin-on hooks.
You can't cover the track with Ripplefold style draperies.