What size of shelf brackets would suit this shelf board?

For mounting a Picton Pine Board measuring 18 x 1800 x 300 mm, you'll typically need brackets that are suitable for its size and weight. Here are a few recommendations: Bracket Type: Use L-shaped shelf brackets or wall brackets designed to support the width and depth of the board. Size: Look for brackets that are at least 300 mm long to provide adequate support. The thickness of the brackets should be around 3-5 mm for sturdiness. Weight Capacity: Ensure that the brackets can support the weight of the board plus any items you plan to place on it. Installation: If the board will be used as a shelf, you might consider using two or more brackets spaced evenly along the length.