Greenhouse "staging" refers to the tables used to grow plants inside a greenhouse building. In most cases, staging tables have raised edges to help hold in dirt, plant matter, and the plants themselves. For planter greenhouses, a flat-topped table will work to hold the planters. However, a traditional greenhouse requires sturdy staging with raised sides that can be used to grow a number of plants. Building a table for a greenhouse requires some carpentry experience.
Choose sturdy, narrow table legs that will support the weight of the table, dirt and plants. Use 3/4-inch-thick plywood as the base of the table.
Cut the plywood and side planks to match the size of the staging. The table should be 60 to 90 cm (2 to 3 feet) wide, and 60 to 150 cm (3 to 5 feet) long.
Stain the sides, legs and base of the table with a water-resistant stain to help keep the wood strong for a longer period of time. Allow the stain to dry 24 to 48 hours before continuing.
Line up one of the legs with one corner of the plywood. Ensure that the leg is flush with the corner of the table, and attach it with 5 cm (2-inch) nails. Repeat this step with the other three legs.
Place one of the sides of the table flush with the plywood base so it forms part of the edge. Attach it with 5 cm (2-inch) nails. Hammer in one nail every 7.5 to 12 cm (3 to 5 inches) to hold the side in place.
Repeat Step 5 with the other three sides of the table to create the raised compartment for the plants and dirt. The corners of the raised planks should be flush.
Nail the corners of the raised planks together to create a tighter fit. This will prevent dirt from escaping.