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Graded hinges

Door closers increase the loading on hinges and the rate at which they wear. When selecting hinges, please consider the table below for the increase in door weight based on the door closer used and the level of door usage.

  With backcheck* Without backcheck
Light Use Add 65% Add 10%
Medium Use Add 75% Add 20%
Heavy Use Add 90% Add 35%

*A backcheck function on a door closer prevents the door from being opened too far by excessive force or a gust of wind. None of the door closers supplied by Howdens Joinery have this function available.

Light Duty

  • Domestic, light commercial
  • 2,000-100,000 cycles each year

Medium Duty

  • Offices, apartment blocks
  • 5,000 - 500,000 cycles each year

Heavy Duty

  • Open plan offices, public buildings, department stores
  • 100,000 - 1,500,000 cycles each year

Grade 7 - washered

3" EB Stainless Steel FHg FD30 HNG0111

4" EB Stainless Steel FHg FD30/FD60 HNG0112

3" Stainless Steel FHg FD30 HNG0068

4" Satin Stainless Steel FHg FD30/FD60 HNG0069

3" Polished Stainless Steel FHg FD30 HNG0161

4" Polished Stainless Steel FHg FD30/FD60 HNG0160

Grade 7 - ball bearing

3" EB Stainless Steel FHg FD30 HNG0371

3" Satin Stainless Steel FHg FD30 HNG0370/HNG0076

3" Polished Stainless Steel FHg FD30 HNG0085/HNG0077

3" BN Stainless Steel FHg FD30 HNG0372

Grade 11 - ball bearing

4" Satin Stainless Steel FHg FD30/FD60 HNG0025

4" EB Stainless Steel FHg FD30/FD60 HNG0027

4" Satin Chrome Steel FHg FD30/FD60 HNG0029/HNG0078

4" Polished Stainless Steel FHg FD30/FD60 HNG0086

Grade 13 - ball bearing

4" EB Stainless Steel FHg FD30/FD60 HNG0065

4" Satin Stainless Steel FHg FD30/FD60 HNG0066/HNG0079

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