Therma-Tru Benchmark Fiberglass Door vs Therma-Tru Fiber-Classic Doors
Both are Therma-Tru fiberglass entry doors, so neither warps, rots, dents or rusts like wood or steel. The Benchmark is the tougher, more specified door: large-missile impact rated, Wind Zone 4, forced-entry resistant, with a composite frame and a 10-year finish warranty. The Fiber-Classic is the broader, more flexible line, with glass options like Clear Lite with Blinds, ENERGY STAR ratings and several frame profiles. Buy the Benchmark if you face hurricane or coastal wind codes; buy the Fiber-Classic if you want more styling and glazing choices at a mainstream level.
- Choose the Benchmark if you need a code-compliant impact door for a high-wind or coastal home and want a composite frame that resists moisture.
- Choose the Fiber-Classic if you want a proven fiberglass door with more glass, grille and frame styling options and ENERGY STAR efficiency.
Prices
- Therma-Tru Benchmark Fiberglass Door: $78.75 at littlewoods (checked today)
- Therma-Tru Fiber-Classic Doors: $400.00 at eBay (last seen Nov 9)
- Difference: the Therma-Tru Benchmark Fiberglass Door is $321.25 cheaper than the Therma-Tru Fiber-Classic Doors at the latest prices (Nov 9 and Nov 10)

