22+ Deck Planter Box Drainage. How big should drainage holes be and how far apart should they be spaced? Deck planters are decorative boxes built to display potted plants and add color and character to your deck.
If you will be supplying the potting soil.
The costs and benefits of advanced drainage systems and the simple physics a waterproof planter liner with advanced drainage within a wood planter box. Built of 3/4 western red cedar stock the arched deck rail planter fits securely to a standard 2x4(3.5) or 5 1/2 wide top deck rail. I have to build some 6' x 2' planter boxes, i'm not sure what's going to be planted in them; This will provide drainage for the soil.