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James Hardie

Model # 9000523

Internet # 100072921

Store SKU # 553777

HardiePanel HZ10 5/16 in. x 48 in. x 96 in. Fiber Cement Sierra 8 Panel Siding

This item has been discontinued.
The Home Depot no longer carries this specific product.




Model # 9000523

Internet # 100072921

Store SKU # 553777

James Hardie Soffit panels are available in a vented and non-vented in a range of pre-cut sizes. As with all James Hardie siding products, HardieSoffit panels are engineered for climate, so you can have peace of mind that your siding products will stand up to the harshest elements no matter where you live. HardieSoffit panels are noncombustible and come with a 30-year non prorated, transferable, limited warranty.

California residents: see  Proposition 65 information

  • Resists damage from moisture
  • Resists cracking, splitting, rotting and swelling
  • Resists termites and insects
  • Superior performance in high wind and hurricane areas
  • Resists flame spread
  • Complete exterior available in lap, shingle, panel, fascia, trim and soffit
  • Paint lasts longer than on wood
  • Pre-primed or available in ColorPlus technology a factory applied color finish with a variety of color options
  • Please see the ProDesk associate for color options available

Info & Guides

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Product Depth (in.) 
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UV Protected 
Vertical or Horizontal 
Warranty / Certifications
Manufacturer Warranty 


Rated 4.8 out of 5 by 9 reviewers.
Rated 3.0 out of 5.0 by Buyer Beware of it limitations I put up dozens of sheets of this 4x8 siding panel and I honestly cannot recommend it unless you have a lot of strength, a lot of patience and a lot of help. While it seems indestructible it is actually pretty fragile, difficult to cut, very hard to set nails to the correct depth and will turn to mush if allowed to get wet and stay wet. For me, a scrap piece laying on the ground outside basically dissolved within a couple of years. It is made up of layers of cement and fabric, not solid cement. So after it is installed, overdriven nails caulked and filled and every point of entry of moisture sealed, it will hold up as promised I am sure. The problem is achieving that. If this material gets wet and stays wet, it will not outlast wood in the same situation. Needless to say it needs paint to help seal it. Having said that, I would use the Hardi Lap siding in its place. It is easier to handle, easier to cut, can be blind nailed so those points of entry are eliminated and requires more centralized caulking which is easier to do. The biggest issues with the large panels is exposed nails, sealing seams and the unmanageable weight. Those issues are mitigated with the lap siding. October 28, 2015
Rated 5.0 out of 5.0 by hands-down the best siding product in the world In today's bland world of siding, my wife and I were looking for something different. Something paintable. Something for which WE can determine the colors, not pick from 9 shades of white. I sided a 32x52 barn with this stuff. Perfect. Currently siding my house with it. Lovely. Unless you love painting, buy it pre-primed. The extra cost is worth not having to put a coat of primer on. READ the instructions fully. Do it yourself according to the instructions or find a contractor willing to follow them. Do not take any shortcuts, do not let your installer take any, either. Any. Follow the best practices guide. Use the right nails. The manufacturer has awesome support -- you can call them with any question and they are happy to help. August 27, 2010
Rated 5.0 out of 5.0 by Great Product This is the best outdoor siding I have ever used, it cost a little more but you get what you pay for. Very durable and maintenance free. October 31, 2009
Rated 5.0 out of 5.0 by Tip for undersink use I use this to protect the interior of the sink vanities and cabinets in my rental houses. It seems that no matter what you do, a sink will ultimately leak or the home's occupants will spill some of the most damaging "wet stuff" under there and you will struggle to make it look decent again. I've had to replace multiple vanities and cabinets before I used HardiePanel to protect them. No more. I cut a section of HardiePanel to fit (sometimes two sections if there is an obstruction) under the sink, place it smooth side up, screw it down, caulk with silicone on the edges, paint with a semi-gloss oil-based paint and the bottom of the vanity stays beatiful, renter after renter. Saves me $100's of dollars in time and money at move out or when they finally report a leak to me. My wife likes the look so much she wants me to do the same under our sinks. March 10, 2012
Rated 5.0 out of 5.0 Everything Resistant.! This Fiber Cement Siding is durable and everything resistant! To mention some, it resists cracking, splitting, rotting and swelling. The moisture-resistant siding can withstand severe weather. Very easy to paint. (you should) I bought 3 of this from Home Depot to make my generator /utility shed. Once installed, it is good for at least 100 years, as long as you leave it alone. Handle with care, it can break. January 31, 2014
Rated 5.0 out of 5.0 Hardie Panel 4x8 sheet It is easy to work with, cutting and installation as well as painting. November 19, 2010
Rated 5.0 out of 5.0 remodeling outside i was remodeling the outside of my recently aquired house and came across this panel. its quick and easy. best product for ur money, and last longer than siding. you dont have to worry about wind dammage. May 4, 2010
Rated 5.0 out of 5.0 by hardingboard uses it was so easy to install and then paint. glad i found out about this shure beats using plywood. for siding. its cheaper also. March 25, 2012
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