Shop Interior Doors in Pocket Configuration. The punch line of our Modular Collection is a white frosted glass inlays that blend in smoothly with the key ingredient of all our doors – solid wood core. One more advantage of these doors is a high endurance due to aluminum edges that add extra reinforcement to a door. Modular Collection reflects strength and aesthetics, innovations and simplicity, warmth and coziness of a well designed and comfortable home. Functional double swing configuration consists of two slabs, frame and casing. It’s up to you to make the doors identical, or choose an active door to be wider. Astragal is optional for better insulation.