Please put your Railing width in the order notes when ordering. Thank you Works great for all size railings 3.75"-7". I can make them wider than 7" but will have to be a custom build so contact me ahead of ordering. I make them .25" wider than your railing. So if you order, put in the order notes the width of your railing. From small apartment balconies to large home decks, this great flower box will spruce up any deck. Made of cedar and comes in either unfinished or water sealed. Bottom of flower box is angled, so you can direct the water away from the deck. Is lined with gardening fabric to keep soil in box when watering. Great for Office Cubicals. I can make these with solid bottoms for fake plants. Minimum width of 3.75". If you are ordering this for fake plants and do not want drainage, please let me know in the order notes. Custom whole deck systems available.