Stanley Tools Dormakaba QDC300 Door Closer Damper
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Price facts
- Last seen at $159.73 at Msc Industrial Supply on Nov 8.
Our take on the Stanley Tools Dormakaba QDC300 Door Closer Damper
The Stanley QDC300 is a medium-duty, Grade 1 rated door closer with a 330 lb load capacity, built for doors up to 54 in wide. Its cast aluminum housing and carbon steel arm suit high-traffic commercial doors, and the non-handed, multi-mount design lets one closer serve left- or right-hinged doors. It is a step up from light-duty closers on durability and load rating, though it is a basic closer without the adjustable spring power or delayed-action features found on heavier-duty models.
- Grade 1 rating for heavy use
- 330 lb load capacity
- Fits doors up to 54 in wide
- Cast aluminum housing resists wear
- Non-handed, multi-mount design simplifies stocking and install
- Carbon steel arm
Stanley Tools Dormakaba QDC300 Door Closer Damper prices at every store
- Msc Industrial SupplyNew
Out of stock
$159.73+ $16.99 shippingChecked Nov 8
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Stanley Tools Dormakaba QDC300 Door Closer Damper price history
Lowest price we've seen: $159.73 on Nov 8 at Msc Industrial Supply. Tracked across 1 store since Nov 8.
From Msc Industrial Supply
- Door closer with 330 lb load capacity
- For doors up to 54 in wide
- 10 in closer body length
- Cast aluminum housing with carbon steel arm
- Non-handed, multi-mount design
- Medium-duty performance, Grade 1 rated
- Materials
- Cast aluminum housing; carbon steel arm
- Fit
- For door thickness 2-1/2 in and door width 54 in
- Shipping
- Ships from supplier; expected to ship within 3 weeks
About the Stanley Tools Dormakaba QDC300 Door Closer Damper
The Stanley Tools Dormakaba QDC300 is a medium-duty door closer rated Grade 1. It has a 330 lb load capacity and fits doors up to 54 in wide.
The closer body is 10 in long and has a cast aluminum housing. The arm is carbon steel. The non-handed, multi-mount design means one closer can be mounted in several ways.
- Load capacity
- 330 lb
- Max door width
- 54 in
- Door thickness
- 2-1/2 in
- Body length
- 10 in
- Housing
- Cast aluminum
- Arm
- Carbon steel
- Handing
- Non-handed
- Mounting
- Multi-mount
- Grade
- Grade 1
- Duty
- Medium-duty
Questions and answers
- What size doors does the QDC300 fit?
- It is rated for doors up to 54 in wide with a 330 lb load capacity. That covers most standard commercial single doors.
- Is it left- or right-handed?
- It is non-handed and multi-mount, so the same closer works on left- and right-hinged doors. That makes it easier to stock and install.
- What is it made of?
- The housing is cast aluminum and the arm is carbon steel. Both are chosen for durability on high-traffic doors.
- What does Grade 1 mean?
- Grade 1 is the top durability classification for door closers under the standard cycle testing. It indicates the closer is built for frequent use.
- Does it have adjustable closing speed?
- The listing describes a medium-duty closer but does not detail valve adjustments. Check the installation instructions for the exact adjustment valves.
- Is it a good replacement for a light-duty closer?
- Yes, if your door is up to 54 in wide and needs a sturdier unit. It is heavier-duty than most residential closers.
