Fiberglass doors are indistinguishable from real wood.

The rich grain patterns embedded within the fiberglass skin is not only just as attractive as real wood, it surpasses wood with its impact resistance and anti-rot characteristics.

See below how rich and deep a properly finished fiberglass door looks. Notice the true hand-craft look of the raised panels and the vivid accuracy of the millwork.

Energy Efficient Fiberglass Door Two Panel