How To Build A Large Concrete Planter Box

Cool geometric shaped planters.

How to build a large concrete planter box.

We made our first one 24 tall. Decide how tall you want your planter to be. You can make a nifty little planter box using melamine boards caulk mineral spirits spray adhesive a circular saw pink insulation foam and clamps. Learn how to make a planter that fits over a picnic table umbrella from funky old jell o molds found at garage sales and thrift stores.

Tap on the sides of the box continually to help air bubbles escape to the surface. After mixing and pouring the cement both will need to cure and form for around two days. Quikrete translucent concrete stain about 27 per gallon. Medium or smaller planters use thick cardboard boxes plastic containers buckets or bowls.

A shovel for mixing caulking gun. The boxes will be the molds that you ll use to create the planters. The boxes can be made of cardboard or wood. Put something in the knockout that s heavy rocks sand weights.

A large concrete mixing tray. Concrete is more durable than wood safe to grow food in and inexpensive. Step 1 overview for how to make a concrete planter illustration by gregory nemec. Download a cut list to make a concrete.

Making your own large round concrete flower pot. Large planters build using laminate boards with screws cover joints with silicone caulking. This is composed of an outer frame and inner frame. A utility knife or circular saw optional a tape measure how to make your own diy concrete planters step.

Fill the large box halfway then press the knockout down into the concrete and hold it there. Continue adding concrete until it reaches the top of the box. Sunday open the forms step 16 17. The smaller box should be able to fit inside of the larger box.

Quikrete countertop mix about 16 for an 80 pound bag. The space in between the 2 boxes will determine the thickness of your concrete planters. Saturday build the forms and fill with mix steps 1 5.