Harrywood Block

Harrywood Block

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Harrywood Block


Harrywood Block’s clean lines, accentuated by cross-grooves, give it a distinctive modern finish. Once installed, the look of this exterior siding is reminiscent of slender blocks of ceramic, combined with the strength of steel.

Harrywood Block offers almost unlimited installation customization options. It can be installed in either an offset joint or breaking bond joint. Plus, the profile can easily be installed vertically, horizontally, and even diagonally.

Order quantities and lead times may vary. Contact your local Mitten branch for a list of box/order quantities.


Harrywood Block Profile
Standard length
144 in (3658 mm)
Height (covered)
6.0625 in (154 mm)
Thickness (depth)
0.34 in (8.6 mm)
Weight (per panel)
6 lbs (2.7 kg)
Screw holes (openings)
0.75 x 0.1875 in (19 mm x 4.8 mm)
Screw holes (intervals)
2.25 in (57.2 mm)
Available gauge
26 g | 24 g
Packaging details
Box contents
12 panels of 144 in (3658 mm)
Total surface area
72.75 sq. ft. / box (6.75 sq. m.)
Box dimensions
145.75 x 7.875 x 2.188 in (3702.05 x 200 x 55.5 mm)
Box weight
75 lbs (34 kg)
Pallet package size
48 x 35 x 148 in | 50 boxes
*Wooden rack packaging for custom orders. Dimensions may vary.
Installation direction
Installation orientation
Horizontal | Vertical | Diagonal

HARRYWOOD BLOCK – For a distinctive touch!

  • Vertical, horizontal, and diagonal installation
  • Pre-painted galvanized steel
  • Cross grooves 12 in or 24 in
  • No exposed screws
  • 24 or 26 gauge
  • Serrated system
  • 40-year warranty
  • CAN/ULC-S135, non-combustibility (CND)
  • ASTM E84, Class A, Fire resistance (USA)
  • ASTM D5206-06A, Maximum sustained pressure
  • ASTM E330, Plank deflection under wind pressure
  • ASTM E283, Air leakage of the wall assembly
  • TDI, Texas Department of Insurance accreditation
  • W.U.I, Exterior Wall Siding and Sheathing for Wildland Urban Interface
  • ASTM E1886, E1996, TAS 202 & TAS 203, Windstorm rated assembly Miami Dade test

Installation Videos:

Literature & Downloads