Carving holes is a great way to lighten a dome -- but the governor won't be happy with your design. Around 500 A.D., ancient engineers realized that a dome could be made of a circular ring of ...

When you're looking for cinder block garden ideas, the sky's just about the limit for this versatile building material. Use them to create stylish walls, furniture, outdoor bars, planters, raised ...

Concrete blocks From the composite board ... Using a 3/8" bit, and centered on top of each block, I drilled ½" deep holes on 23 blocks for the posts – I call these block/posts.