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Types of front door: which one fits your home?

Choose Wood for a wildfire-prone area, as a fire-rated solid-core wood door (PNNL names metal too); Steel (metal) for areas where severe termite or insect infestation problems exist (a 2009 FEMA coastal construction guide, via PNNL); Fiberglass for an insulated door that usually has a wood-like look and can be painted or stained (Minnesota Home Energy Guide, 2025).

The right choice depends on whether your area has severe termite or insect problems, whether you live in a wildfire-prone area that calls for a fire-rated door, and how well the door insulates (its U-factor) and how much upkeep you accept.

How we know: By . · Sources read: 17 October 2026 · Updated 27 October 2026

Minnesota's Home Energy Guide (2025), for every door: "U-factor is the most important consideration for doors".
TypeBest forMain advantagesMain drawbacks
Wooda wildfire-prone area, as a fire-rated solid-core wood door (PNNL names metal too)a wood panel door has "less expansion and contraction than steel doors" (Minnesota Home Energy Guide, 2025)"a relatively poor thermal performance" and "higher maintenance requirements" (Minnesota Home Energy Guide, 2025)
Steel (metal)areas where severe termite or insect infestation problems exist (a 2009 FEMA coastal construction guide, via PNNL)PNNL Building America Solution Center, citing a 2009 FEMA coastal construction guide: in those termite areas, metal doors are recommended; insulated steel doors "can exceed the energy performance of a wood panel door considerably" (Minnesota Home Energy Guide, 2025); PNNL Building America Solution Center: insulated foam-core, metal or fiberglass ENERGY STAR doors should be selected if possible; PNNL Building America Solution Center: in wildfire-prone areas, install fire-rated exterior doors made of solid-core wood or metalfiberglass doors have "less expansion and contraction than steel doors" (Minnesota Home Energy Guide, 2025)
Fiberglassan insulated door that usually has a wood-like look and can be painted or stained (Minnesota Home Energy Guide, 2025)"less expansion and contraction than steel doors" (Minnesota Home Energy Guide, 2025); PNNL Building America Solution Center: insulated foam-core, metal or fiberglass ENERGY STAR doors should be selected if possibleno official source names one

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