Cost difference between H and L series

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The L-Series doors are designed for virtually all construction requirements in commercial building applications. They have also been tested and approved for uniform wind load per ASTM E330.  ...
Steelcraft does offer two types of seamless edge construction that support SDI classification standard Model 2 -seamless. Filled Edge: Epoxy fill, two part epoxy filled and dressed smooth. (LF, ...
All doors are tested in accordance with ASTM C1363 and SDI 113:B18 Series (Steel Stiffeners)     U-Factor = 0.50     R-Value = 2.01B16 Series (Steel Sti...
To install a 4041/4040XP with Rw/PA or Hw/PA arm, you need a minimum of 5-3/8" top rail on the door, measured from the bottom of the stop. If the top rail is less than 5-3/8", you will need to use ...
HH hurricane rated devices usually have a deferent strike and fire rated mullion. Standard 98/99 series exit devices can be converted to HH by changing the strike and mullion on pair of doors. ...