Upgrade your interior spaces by replacing hollow-core doors with sturdy, sound-reducing, solid-core new interior doors. In this article, we’ll show you how to replace an interior door. The post ...

This gives the room a clean and uncluttered vibe that complements interior styles like minimalist, modern, and contemporary. Don't mistake slab doors for the shaker type as they're different.

All you need are three simple interior door slabs and some hinges. This DIY tutorial comes via Apartment Therapy. They use these simple, hollow wooden interior doors from Home Depot.