When You Re-string a Shade – Use Solid Braid Lift Cord

Be sure to specify the use of a solid braid cord whether you are restringing an old honeycomb shade or shopping for a new one. The solid braid cording is more durable and longer wearing.

frayed-lift-cord-cell shade

Frayed Cell Shade Cord

Can you use a stronger string?

That's a question I hear a lot. I often have customers say that the lift cord in their blind or shade did not hold up very well to normal usage. They want to know if I can use a replacement cord that will be stronger and more durable.

In most cases, it's not possible to use a heavier or larger cord because it just won't fit through the cord guides or the cord lock. Many cell shades are designed to use a cord that is only 0.9 mm in diameter (that's smaller than the thickness of a dime) and there's not enough clearance for anything bigger.

It's all about the type of braid

solidBraid_vs_DiamondBraid

Solid Braid vs Diamond Braid

Most, if not all, modern day shade cords are made of nylon or polyester. Cording made from these materials are very strong even in small diameters such as what is used in blinds and shades.

One thing that makes a big difference in how well the cording holds up to normal wear and tear is the way the strands of the cord are braided. The photo on the right shows the difference between "solid braid" (top) and "diamond braid" (bottom).

Strength is equal but surface characteristics are very different

As the photo shows, the surface of the solid braid cord is tighter and smoother. Inside the mechanism of a blind or shade the tighter, smoother braid means less friction and less friction means increased durability.

The solid braid cord is slightly more expensive than diamond braid due to higher manufacturing (braiding) costs but compared to the price of a new blind or shade it's no big deal and the improvement in durability it provides makes it worth it.

So, the next time you replace your window blind cord (or are shopping for a new blind or shade), be sure to specify solid braid shade cord. I wouldn't use anything else.

 

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How to Restring a Curtain Rod

You can restring your own curtain rod with only a few simple tools and the information presented in this video. It’s easy to do it yourself.

Restring a center draw traverse rod
How to restring a center draw traverse rod

If you have to replace the cord in a two-way draw traverse rod, here's a video that will show you how it's done. This guy has obviously done this before.

And I thought I was the only one who knew about the old paper clip trick!

 

There is one more step in the process that he doesn't cover. When you are ready to rehang your drapery, you will need to anchor the second carrier to keep it from slipping so that the curtain panels will always come together in the center of the window. There is a good article about how to center a two-way draw curtain rod at RepairWindowBlinds.com.

If you need to replace some broken or missing traverse rod slides you can order those here in packs of 12 from RepairWindowBlinds.com.

front view of plastic traverse curtain rod slide
Traverse Slide Front View
side view of plastic traverse curtain rod slide
Traverse Slide Side View
Traverse Rod Slides
pack of 12 white plastic slides
$3.25 + $2.00 shipping





Frayed Lift Cords on a 2″ Wood Blind

wood blind with frayed string
Frayed String on a 2" Wood Blind

Yesterday, I replaced the lift cords on a 2" wood blind that had one broken string and another that was badly frayed and probably would have broken soon.
Restringing a wood blind is usually a bit of a yawner, but this one was kind of interesting because it illustrates a problem that is common with wood blinds and faux wood blinds.

Three blinds on one headrail.
This particular blind was from a large window that was almost 8 ft. wide. It was actually 3 wood blinds all on the same headrail.

You've probably seen windows like this. They usually have two smaller panes of glass on either end that can be opened or closed and one larger fixed pane in the center. A typical treatment involves 3 separate blinds, one for each pane. Breaking a big blind up into 3 smaller blinds reduces the size and weight of each individual blind making them more reliable and easier to operate.

The frayed and broken strings were all on the larger blind in the middle.
Even though the window covering had been split up into three smaller blinds, the larger of the 3 was still big enough to cause trouble.

These two photos show lift cords as they are routed through the holes in the bottom of the headrail. You can see the clear plastic inserts that are intended to protect the cords from the unfinished edges of the "route holes" that have been punched through the metal headrail.

undamaged-lift-cord-2-inch-wood-blind

Lift Cord on the Smaller Blind

This photo shows the lift cord for one of the smaller blinds. The cord is shown passing through the small round hole in the center of the headrail. The plastic insert is intact and doing its job of protecting the cord from the metal edge.

damaged-lift-cord-2-inch-wood-blind

Lift Cord on the Larger Blind

This photo shows one of the lift cords for the larger center blind. You can see how normal daily usage and the weight of the blind has caused the cord to cut through the plastic insert. The lift cord is now rubbing against the metal edge of the route hole. This photo was taken after the frayed cord was replaced so you don't see any fraying - yet.

Why restring if the weakness is in the design?
The obvious solution would seem to be to replace that plastic insert, but it's usually not that easy. Parts availability is often an issue. Even if a replacement part is available it is likely to fail again for the same reason.

Though restringing is only a temporary fix, it does allow you to continue to use the blind while you plan for replacement.

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