Therma-Tru. The smooth fiberglass Classic-Craft Canvas Collection features a paintable surface easily adapted to interior or exterior decor. The architecturally correct doors feature wide center panels and rich embossment details. In addition to the durable fiberglass, the doors are tested to ensure years of reliable use. Normal residential door testing involves slamming doors 25,000 times, while Therma-Tru doors are slammed 250,000 times to prove the endurance of the design. 800.843.7628. www.thermatru.com.