How to Make a Quadra Concrete Fire Pit

This tutorial will teach you how to make a concrete fire pit.

Part modern and part rustic, the Quadra Concrete Fire Cube was expressly designed by Fu-Tung Cheng to rekindle the nostalgia of gathering around a wood-burning campfire. The Quadra provides mass appeal with dimensions of 48”W x 58”L. Utilizing CHENG D-FRC mixes, each finished Quadra section weighs less than 150 pounds, making it easily moveable any place within your backyard or from one home to the next. Don’t miss Fu-Tung’s video for more details about designing the Quadra Concrete Fire Pit.

One: Forming

Even experienced carpenters will find this challenging. The projects “high” difficulty rating was awarded for the complexity of the curved inner form.

Two: Casting

The high vertical layups require you to take your time and insure previous layups are firm enough to support the full wall thickness while casting.

Three: Demolding

If you are careful when removing the form to avoid chipping, denting, or scratching it, you should be able to cast many times with this single form.

Four: Finish and Install

Since each half of the Quadra Fire Pit only weighs 120 – 150 lbs, the installation and assembly can easily be accomplished by two people.