Therma-Tru Benchmark Fiberglass Door vs Reliabilt Steel Prehung Front Door

The Therma-Tru Benchmark is the stronger door for most shoppers. It is fiberglass over an insulating core with a composite frame, so it resists warping, rot and dents, and it carries a large-missile impact rating and Wind Zone 4 rating that the Reliabilt steel door does not claim. The Reliabilt is a simpler primed steel slab with no glass and a solid wood lock block, and it is the budget-minded pick when impact ratings and finish durability matter less. Owners of fiberglass Benchmark doors generally report the finish and frame hold up well; steel doors like the Reliabilt can dent and need repainting over time.

• Choose the Therma-Tru Benchmark if you want an impact-rated fiberglass door with a composite frame, Low-E glass and a factory paint finish that resists rot and warping.
• Choose the Reliabilt steel door if you want a plain, paintable solid door with no glass and a solid wood lock block, and impact ratings are not a concern.