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1.800.521.6776 // www.mditrafficcontrol.com
MASH Tested
MDI® is proud to offer a full range of sign stands 
to meet your work zone signage needs. Our original 
WindMaster® sign stands, constructed of steel bases and 
spring components, deliver the quality you have come  
to rely on. 
Model
Number
Deployed
Height*
Sign
 Height**
Folded Dimensions
(HxWxD)
Weight
Roll-Up 
Signs
Rigid
Signs
 WindMaster
Springs
STACKMASTER
80"
12"
4½" X 28" X 17¾"
35 lbs.
◆
––
None
5012M-NCAM
80"
12"
29" X 7½" X 6½"
21 lbs.
◆
––
None
5012M-SS
80"
12"
25" X 7½" X 6½"
22.5 lbs.
◆
––
Single
4814M-SL
82"
14"
25" X 6½" X 6½"
25 lbs.
◆
––
Dual
4814M-DLK
82"
14"
25" X 6½" X 6½"
21 lbs.
◆
––
Dual 
50SM-NS
88"
12"-54"
61½" X 7½" X 6½"
23.5 lbs.
◆
◆
None 
STACKMASTER™ 
Pocket-lock sign bracket.
For use with roll-up signs.
Sign height: 12"
5012M-NCAM
Universal CamLock®  
sign attachment.
For use with roll-up signs.
Sign height: 12"
5012M-SS
Universal Screw-lock  
sign attachment.
For use with roll-up signs.
Sign height: 12"
4814®M-SL
Universal Screw-lock  
sign attachment.
For use with roll-up signs.
Sign height: 14"
4814M-DLK
Drop-N-Lock sign 
attachment.
For use with roll-up signs.
Sign height: 14"
50SM-NS
For use with roll-up or  
rigid signs.
Sign height: 12"–54"
//WINDMASTER® SIGN STANDS//
Our WindMaster product line allows deployment of your signs at 
various heights between 12" and 88" from ground surface. Models 
T1260M, 4818®M, 50SM-2S, 4860®M also feature MDI’s BreakAway® 
system. WindMaster sign stands are backed against  
defects in workmanship, parts and materials.
* To top of 48" sign without flags. ** Distance from bottom of 48" sign to ground.

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