A custom high lift from DDM typically costs $350 – $500. This does not include an operator; with an operator the cost is $900 – $1100. In addition to the kit cost, expect shipping costs of $50 – $150.… Read the rest of this entry »
Push Down Bumper Springs start the door on the down cycle by pushing on the top of the door.
Jackshaft openers such as the Liftmaster 8500 or the 8500W turn the torsion shaft to operate the door. Under certain circumstances, it is advisable to use pusher springs to help the door close if the door cables come off the drums as the door begins to close.… Read the rest of this entry »
The garage door industry uses two different types of PVC stop molding – solid and hollow. So which one is better?
At DDM Garage Doors, we have kept both the solid and the hollow stop molding pieces as stock items for as long as we’ve been in business.… Read the rest of this entry »
There are two types of operators, drawbar with trolley and jackshaft. We will cover some potential solutions since Jackshaft operators tend to cause cable problems.
On trolley type operators, the drawbar arm pushes and pulls the top of the door to open and close it.… Read the rest of this entry »
When upgrading to longer life torsion springs, it is often better to convert to four smaller springs. This is especially true when the torsion springs are for heavier garage doors.
On a standard two spring system, both torsion springs normally mount back to back to the spring anchor bracket off-centered above the door.… Read the rest of this entry »
Overhead Door Corporation has discontinued the production of its own brand of hinges.
The Arrow Tru-Line hinges are an excellent replacement. However, the holes don’t always line up with the existing carriage bolts on the older wooden doors.
You can see the difference between the Overhead Door and Arrow Tru-Line hinges in the image below.… Read the rest of this entry »
We received an email this week from a do-it-yourselfer who had installed a Clopay door with an EZ-SET torsion spring set up. On his door, he has a single spring with a winder at the left end of the torsion assembly.… Read the rest of this entry »
Over the years, we have had customers contact us for help converting from double low headroom tracks to high lift. This usually happens when they remove a loft from above the door or when they move a low headroom door from one location to another.… Read the rest of this entry »
What is a left-hand spring or a right-hand spring?
In the door business, it could mean one of two things.
It could mean the wind of the spring, which would be a left wind spring. A spring wound the opposite direction would be a right wind spring.… Read the rest of this entry »
On a garage door with standard lift tracks, the top of the door rises immediately into the radius at about a 45-degree angle. If the door has windows in the top section, the pitch of the tracks allows the window frame to clear the top PVC stop molding.… Read the rest of this entry »
Huge inventory of torsion springs for same or next day shipping! Here you will find all you need in the most common sizes of 1 3/4," 2," 2 1/4," and 2 5/8" inside diameter springs. Larger 3 3/4" and 6" inside diameter commercial and industrial springs may require a day or two to ship. You'll also find TorqueMaster Springs, Extension Springs, Self-Storage door springs, steel rolling door springs and springs for one piece single panel doors.
Shelves packed with every part you need to fix your doors.
Please note. Shipping times and costs have changed. Normal transit times are currently not guaranteed, even on next day and second day shipments. Shipping prices on items over eight feet have more than tripled.
