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Cooper B-Line Dura-Blok™ Rooftop Support Solutions

Economical Support System for Raised Rooftop Applications

Dura Blok

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Cooper B-Line Dura-Blok™ Rooftop Support Solutions

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Low Price GuaranteeWhat's special about these rubber support blocks?

  • Affordable, rooftop support system available in a wide range of configurations for securely mounting pipes, cable trays, grated walkways, HVAC equipment , and other applications
  • Dependable rubber construction will not float or blow away, and delivers a longer, more reliable lifespan  than wood blocks or cheap plastic imitations
  • Made from 100% recycled rubber and qualifies for LEED credits, which is ideal for companies looking to make facilities eco-friendly and reduce their footprint on the environment
  • Click for More Features

The Dura-Blok™ Rooftop Support System from Cooper B-Line is designed to provide years of reliable service in harsh outdoor environments. These specialized support blocks are molded from 100% recycled rubber to provide a safe yet dependable base onto which a wide range of rooftop piping, conduit, and even HVAC equipment can be mounted without causing long-term damage to the roofing.

  • Smooth rubber composition absorbs heavy loads without becoming sharp or abrasive, which helps to extend the life of your roof and eliminate additional maintenance typically required with wooden support blocks
  • Durable yet gentle design requires no roof penetration or adhesion for installation
  • Dampens vibration from AC equipment, so there is no need for additional rubber padding or noise reduction insulation
  • 14 gauge, galvanized steel channel is through-bolted on all sizes to maintain a high level of strength and weight capacity
  • On longer assemblies, each block is spaced 1" apart to allow water to flow freely, preventing additional stress or the collection of stagnant water
  • Reflective strip on each side provides clear visibility while helping to reduce roof-related accidents

Dura-Blok Applications:

  • Pipe Supports
  • HVAC Supports
  • Roof Walkway Supports
  • Duct Supports
  • Conduit Supports
  • Cable Tray Supports
Density 0.52 oz/cu in ASTM C642
Durometer Hardness 67.2A ± 1 ASTM D2240
Tensile Strength 231 psi minimum ASTM D412
Compression Deformation 5% at 70 psi and 72° F ASTM D395
Brittleness at Low Temp -50° F ASTM D746
Freeze and thaw when exposed to deicing chemicals No loss after 50 cycles ASTM C672
Coefficient of Thermal Expansion 8 x 10 ˉ⁶ in/in/ °F (min) ASTM C531
Weathering 70 hours at 120º F - ASTM D573
A - Hardness retained 100% (±5%)
B - Compressive strength 100% (±5%)
C - Tensile strength 100% (±5%)
D - Elongation retained 100% (±5%)

Support Bases | DB Series | DB6 Series | DB10 Series | DBE Series
DB_DS Series | DBM Series | DBR Series | Accessories

PART # DESCRIPTION LOAD CAPACITY HEIGHT WIDTH LENGTH WEIGHT PRICE
Support Bases
QZC-DBM DuraBlok Rooftop Support Base 500 lbs 4" (101mm) 6" (152mm) 4.8" (122mm) 4.48 lbs (2.03kg)
$14.08 Qty:  
QZC-DBP DuraBlok Rooftop Support Base 500 lbs 4" (101mm) 6" (152mm) 9.6" (244mm) 2.35 lbs (1.07kg)
$21.81 Qty:  
 
DB Series
QZC-DB5 DuraBlok Base w/ 1" High Channel 500 lbs 5" (127mm) 6" (152mm) 4.8" (122mm) 2.75 lbs (1.25kg)
$23.85 Qty:  
QZC-DB10 DuraBlok Base w/ 1" High Channel 500 lbs 5" (127mm) 6" (152mm) 9.6" (244mm) 5.28 lbs (2.39kg)
$28.56 Qty:  
QZC-DB20 DuraBlok Base w/ 1" High Channel 1,000 lbs 5" (127mm) 6" (152mm) 20.2" (513mm) 10.63 lbs (4.82kg)
$59.93 Qty:  
QZC-DB30 DuraBlok Base w/ 1" High Channel 1,500 lbs 5" (127mm) 6" (152mm) 30.8" (782mm) 15.99 lbs (7.25kg)
$82.25 Qty:  
QZC-DB40 DuraBlok Base w/ 1" High Channel 2,000 lbs 5" (127mm) 6" (152mm) 41.4" (1052mm) 21.34 lbs (9.68kg)
$116.93 Qty:  
QZC-DB48 DuraBlok Base w/ 1" High Channel 2,500 lbs 5" (127mm) 6" (152mm) 52.0" (1321mm) 26.70 lbs (12.4kg)
$138.60 Qty:  
 
DB6 Series
QZC-DB610 DuraBlok Base w/ 2.625" High Channel 500 lbs. 6.625" (167mm) 6" (152mm) 9.6" (244mm) 6.36 lbs (2.88kg)
$36.09 Qty:  
QZC-DB620 DuraBlok Bases w/ 2.625" High Channel 1,000 lbs. 6.625" (167mm) 6" (152mm) 20.2" (513mm) 12.90 lbs (5.85kg)
$74.97 Qty:  
QZC-DB630 DuraBlok Bases w/ 2.625" High Channel 1,500 lbs. 6.625" (167mm) 6" (152mm) 30.8" (782mm) 19.45 lbs (8.82kg)
$102.90 Qty:  
QZC-DB640 DuraBlok Bases w/ 2.625" High Channel 2,000 lbs. 6.625" (167mm) 6" (152mm) 41.4" (1052mm) 26.00 lbs (11.79kg)
$146.12 Qty:  
QZC-DB648 DuraBlok Bases w/ 2.625" High Channel 2,500 lbs. 6.625" (167mm) 6" (152mm) 52.0" (1321mm) 32.55 lbs (14.76kg)
$173.28 Qty:  
 
DB10 Series
QZC-DB10-28 DuraBlok Bridge w/ 1.625" High Channel 1,000 lbs. 5.625" (143mm) 9.6" (244mm) 28" (711mm) 13.16 lbs (5.97kg)
$75.62 Qty:  
QZC-DB10-36 DuraBlok Bridge w/ 1.625" High Channel 1,000 lbs. 5.625" (143mm) 9.6" (244mm) 36" (914mm) 14.36 lbs (6.51kg)
$83.64 Qty:  
QZC-DB10-42 DuraBlok Bridge w/ 1.625" High Channel 1,000 lbs. 5.625" (143mm) 9.6" (244mm) 42" (1067mm) 15.52 lbs (7.04kg)
$85.17 Qty:  
QZC-DB10-50 DuraBlok Bridge w/ 1.625" High Channel 1,000 lbs. 5.625" (143mm) 9.6" (244mm) 50" (1270mm) 16.45 lbs (7.46kg)
$90.92 Qty:  
QZC-DB10-60 DuraBlok Bridge w/ 1.625" High Channel 1,000 lbs. 5.625" (143mm) 9.6" (244mm) 60" (1524mm) 17.94 lbs (8.14kg)
$99.71 Qty:  
 
DBE Series
QZC-DBE10-8 DuraBlok w/ Rod Risers and 1" Channel 200 lbs. 5.5" - 8" (140 - 203mm) 6" (152mm) 9.35" (161mm) 5.68 lbs (2.58kg)
$49.64 Qty:  
QZC-DBE10-12 DuraBlok w/ Rod Risers and 1" Channel 200 lbs. 5.5" - 12" (140 - 305mm) 6" (152mm) 9.35" (161mm) 5.72 lbs (2.59kg)
$65.18 Qty:  
QZC-DBE10-16 DuraBlok w/ Rod Risers and 1" Channel 200 lbs. 5.5" - 16" (140 - 406mm) 6" (152mm) 9.35" (161mm) 5.76 lbs (2.61kg)
$69.91 Qty:  

Click here for more options

Support Bases | DB Series | DB6 Series | DB10 Series | DBE Series
DB_DS Series | DBM Series | DBR Series | Accessories


PART # DESCRIPTION LOAD CAPACITY HEIGHT WIDTH LENGTH WEIGHT PRICE
DB_DS Series
QZC-DB2318DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 23" (584mm) 25.625" (651mm) 20.2" (513mm) 33.31 lbs (15.11kg)
$249.90 Qty:  
QZC-DB2918DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 29" (736mm) 25.625" (651mm) 20.2" (513mm) 35.00 lbs (15.88kg)
$253.10 Qty:  
QZC-DB4118DS DuraBlok w/1.625" Vertical and Horizontal Channels 1,000 lbs. 41" (1041mm) 25.625" (651mm) 20.2" (513mm) 38.40 lbs (17.42kg)
$264.44 Qty:  
QZC-DB5318DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 53" (1346mm) 25.625" (651mm) 20.2" (513mm) 41.80 lbs (18.96kg)
$290.19 Qty:  
QZC-DB2324DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 23" (584mm) 31.625" (803mm) 20.2" (513mm) 34.15 lbs (15.49kg)
$251.69 Qty:  
QZC-DB2924DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 29" (736mm) 31.625" (803mm) 20.2" (513mm) 35.84 lbs (16.26kg)
$255.00 Qty:  
QZC-DB4124DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 41" (1041mm) 31.625" (803mm) 20.2" (513mm) 39.25 lbs (17.80kg)
$266.22 Qty:  
QZC-DB5324DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 53" (1346mm) 31.625" (803mm) 20.2" (513mm) 42.65 lbs (19.34kg)
$292.11 Qty:  
QZC-DB2336DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 23" (584mm) 43.625" (1108mm) 20.2" (513mm) 35.84 lbs (16.26kg)
$257.21 Qty:  
QZC-DB2936DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 29" (736mm) 43.625" (1108mm) 20.2" (513mm) 37.55 lbs (17.03kg)
$260.61 Qty:  
QZC-DB4136DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 41" (1041mm) 43.625" (1108mm) 20.2" (513mm) 40.95 lbs (18.57kg)
$271.83 Qty:  
QZC-DB5336DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 53" (1346mm) 43.625" (1108mm) 20.2" (513mm) 44.34 lbs (20.11kg)
$297.72 Qty:  
QZC-DB2348DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 23" (584mm) 55.625" (1415mm) 20.2" (513mm) 37.55 lbs (17.03kg)
$270.05 Qty:  
QZC-DB2948DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 29" (736mm) 55.625" (1415mm) 20.2" (513mm) 39.25 lbs (17.80kg)
$273.50 Qty:  
QZC-DB4148DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 41" (1041mm) 55.625" (1415mm) 20.2" (513mm) 42.65 lbs (19.34kg)
$284.58 Qty:  
QZC-DB5348DS DuraBlok w/ 1.625" Vertical and Horizontal Channels 1,000 lbs. 53" (1346mm) 55.625" (1415mm) 20.2" (513mm) 46.03 lbs (20.88kg)
$310.47 Qty:  
 
DBM Series
QZC-DBM-05CT DuraBlok w/Rod Risers and 0.5" Dura Copper Clamp 50 lbs. 11.19" (284mm) 6" (152mm) 4.80" (122mm) 2.75 lbs (1.25kg)
$41.96 Qty:  
QZC-DBM-75CT DuraBlok w/ Rod Risers and 0.75" Dura Copper Clamp 50 lbs. 11.34" (288mm) 6" (152mm) 4.80" (122mm) 2.76 lbs (1.25kg)
$41.96 Qty:  
QZC-DBM-10CT DuraBlok w/ Rod Risers and 1.0" Dura Copper Clamp 50 lbs. 11.45" (291mm) 6" (152mm) 4.80" (122mm) 2.84 lbs (1.29kg)
$42.33 Qty:  
QZC-DBM-125CT DuraBlok w/ Rod Risers and 1.25" Dura Copper Clamp 50 lbs. 11.63" (295mm) 6" (152mm) 4.80" (122mm) 2.95 lbs (1.34kg)
$42.59 Qty:  
QZC-DBM-150CT DuraBlok w/ Rod Risers and 1.5" Dura Copper Clamp 50 lbs. 11.78" (299mm) 6" (152mm) 4.80" (122mm) 2.96 lbs (1.34kg)
$42.72 Qty:  
QZC-DBM-20CT DuraBlok w/ Rod Risers and 2.0" Dura Copper Clamp 50 lbs. 12.03" (305mm) 6" (152mm) 4.80" (122mm) 3.03 lbs (1.37kg)
$43.23 Qty:  
 
QZC-DBM-05 DuraBlok w/ Rod Risers and 0.5" Malleable Iron Clamp 50 lbs. 11.36" (288mm) 6" (152mm) 4.80" (122mm) 2.78 lbs (1.26kg)
$42.98 Qty:  
QZC-DBM-75 DuraBlok w/ Rod Risers and 0.75" Malleable Iron Clamp 50 lbs. 11.56" (293mm) 6" (152mm) 4.80" (122mm) 2.84 lbs (1.29kg)
$42.98 Qty:  
QZC-DBM-10 DuraBlok w/ Rod Risers and 1.0" Malleable Iron Clamp 50 lbs. 11.64" (296mm) 6" (152mm) 4.80" (122mm) 2.86 lbs (1.30kg)
$43.23 Qty:  
QZC-DBM-125 DuraBlok w/ Rod Risers and 1.25" Malleable Iron Clamp 50 lbs. 11.75" (298mm) 6" (152mm) 4.80" (122mm) 2.93 lbs (1.33kg)
$43.86 Qty:  
QZC-DBM-150 DuraBlok w/ Rod Risers and 1.5" Malleable Iron Clamp 50 lbs. 11.92" (303mm) 6" (152mm) 4.80" (122mm) 2.99 lbs (1.36kg)
$43.86 Qty:  
QZC-DBM-20 DuraBlok w/ Rod Risers and 2.0" Malleable Iron Clamp 50 lbs. 12.16" (309mm) 6" (152mm) 4.80" (122mm) 3.10 lbs (1.41kg)
$44.25 Qty:  
 
DBR Series
QZC-DBR10-12 DuraBlok w/ Rod Risers and 3.5" Pipe Roller 200 lbs. up to 12" (305mm) 6" (152mm) 9.6" (244mm) 6.46 lbs (2.93kg)
$67.46 Qty:  
QZC-DBR2-305 DuraBlok w/ 1" High Channel and 3.5" Pipe Roller 500 lbs. 7.09" (180mm) 6" (152mm) 9.6" (244mm) 5.28 lbs (2.39kg)
$76.76 Qty:  
QZC-DBR4-6 DuraBlok w/ 1" High Channel and 6" Pipe Roller 500 lbs. 7.09" (180mm) 6" (152mm) 9.6" (244mm) 10.63 lbs (4.82kg)
$88.11 Qty:  
QZC-DBR8-10 DuraBlok w/ 1" High Channel and 10" Pipe Roller 1000 lbs. 8.34" (212mm) 6" (152mm) 20.2" (513mm) 15.99 lbs (7.25kg)
$116.67 Qty:  
QZC-DBR12-14 DuraBlok w/ 1" High Channel and 14" Pipe Roller 1000 lbs. 9.38" (238mm) 6" (152mm) 20.2" (513mm) 21.34 lbs (9.68kg)
$172.01 Qty:  
QZC-DBR16-20 DuraBlok w/ 1" High Channel and 20" Pipe Roller 1000 lbs. 9.78" (248mm) 6" (152mm) 20.2" (513mm) 26.70 lbs (12.11kg)
$229.89 Qty:  
 
Accessories
QZC-CLDP10 Dura-Blok Load Distribution Plate with Slots DBE & DBR Series 500 lbs. 11 Ga. (3.05mm) 1.625" (41mm) 9.5" (241mm) 0.53 lbs (0.24kg)
$10.46 Qty:  

30 Piece Deluxe SetOEL-MTK OEL Sales 30 Piece Deluxe Maintenance Insulated Tool Kit
From $1,170.00
This kit includes 29 double-insulated tools, rated for 1000-V ac live line use, in a die-cut case that keeps everything organized and simplifies quick tool accountability upon leaving a job. The innovative use of two-color insulation makes performing inspections easier, and ensures safety on the job site. Once the yellow under layer is visible, the tool may no longer be insulated properly and should be considered for replacement and removed from service.

EMT ConduitBulk EMT Conduit
From $27.56/ 100'
Unthreaded raceway made of galvanized steel. Easy to cut and easy to bend - reducing waste and installation time. Metal conduit is non-combustible and adapts easily to future wiring changes.
 

MaxCell InnerductMaxCell Fabric Innerduct 3" 3 Cell
From $1,485.00
The MaxCell textile innerduct is available in Standard, Plenum, Riser and Detectable versions. This innerduct is an innovative solution for the large-scale and often complicated issues that engineers, contractors, and network providers are often faced with.

Black Box Interlocking Armored, 12-Strand, 62.5-Micron Multimode Fiber Optic CableBlack Box Interlocking Armored, 12-Strand, 62.5-Micron Multimode Fiber Optic Cable
From $2,150.27
The Black Box Interlocking Armored Multimode Fiber Optic Cable is a fiber cable that is jacketed in aluminum interlocking armor so you can run it just about anywhere. Since the fiber optic cable is already inside you will save time and money in your installations, as there is no need use a protective innerduct.


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