Diamond Evolution Door

Flush Hardware / 2" Track / Dual Spring Counterbalance

High durability composite panel roll-up door with flush mounted hardware, 2" track and rollers and dual spring counterbalance configuration.

The Diamond Evolution Door is synonymous with:

  • Long life
  • Reduced maintenance costs
  • Extremely Durable composite panel material
  • No weight gain due to moisture absorption
  • No shrinking and swelling
  • High strength-to-weight ratio
  • Automotive-like finish


Suitable for trailers, step vans, and truck bodies for short haul or high frequency pick-up and delivery runs. Ideal for limited access or road side deliveries where conventional swing doors are not functional.


Custom made doors from 30" to 98" wide x 48" to 120" high.


  • Panels made from composite steel and foamed plastic core.
  • Rust inhibiting baked on primer and polyester baked on finish coat to provide an automotive style finish.
  • 2" x 14 gauge galvanised steel tracks and 2" steel rollers for durability.
  • Tongue insert seal and groove joints.
  • Head, Bottom and Side Seals provide protection against water penetration.
  • Stainless steel cables supplied as standard.
  • Counterbalances are dual spring configuration providing added protection in case of spring failure and easy to use operation. Springs treated with rust preventative.
  • 5 rows of steel hinges supplied as standard.
  • Stainless steel rivets and bolts supplied as standard.
  • 77 style lock, lifting handle and HD 18" looped pull strap provided as standard.
  • All door hardware is E-COATED.

Technical Information

To discuss your requirements , please select your state on the contact us page, and call or email your nearest Diamond Roll-Up Doors team.