Clients frequently ask us, “Why is one of my garage door springs slinky and the other tight?” Or, “Why is one spring stiff and the other loose?” The answer lies in the pitch of the torsion spring wire.
When a spring coils, the wire normally winds at a 90-degree angle from the spool or rod it is wound around.…
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On our Standard Garage Door Torsion Springs page, we include a special offer for free garage door hardware or free winding bars.
Since we started this we have had a number of requests for substitutions.…
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Hardware kits are available for customers who build their own garage door sections, as well as for those who buy the sections already made. We are also starting to see iron garage doors imported from other countries. These iron doors are much heavier than the lighter steel doors.…
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We’re sorry, but due to global supply chain shortages, we are currently not selling any of our products at our former wholesale prices.
In my January 19 blog, I explained the changes FedEx and UPS had made for shipping boxes that are over eight feet long. One inch of extra length would cost more than six times as much to ship. This affects how we ship products that require larger boxes such as shaft and strut kits.…
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Hormann is a German garage door manufacturer that has set up a manufacturing plant here in the United States. The purpose of this entry is to show many of the unique features of the door parts.
The bottom fixtures incorporate spring-loaded arms to prevent the cables from coming off the drums if the cable tension loosens.…
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In this age of Amazon and instant deliveries, it is easy to conclude that shipping always is or should be free.
The fact is that shipping products is never free. If the customer does not pay for shipping, it is because the seller adds shipping to the cost of the product.…
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Garage door extension springs stretch as the door closes and contract as the door opens. Also designated as “stretch springs,” these usually mount above the horizontal tracks, but sometimes they extend beside the vertical tracks.
Over the years, there have been requests for better extension springs because customers’ existing springs have not lasted as long as they had hoped.…
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DDM now stocks Flexible Brush Seal! Made with flexible plastic, designed as an alternative to the original brush seal with a rigid steel support edge. In addition, several features make it an excellent option for your commercial doors and dock levelers.…
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DDM Garage Doors now offers Storm Shield® threshold seals for sectional garage doors. Other garage door weather seals mount to the jambs, header, and bottom of the door. However, this threshold seal glues to the floor directly below the bottom of the door to improve the seal under the door.…
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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.
