Measure and mark a symmetrical square section of your property on which to locate the shed’s wooden foundation. A 12-foot-by-12-foot section of land is a great size for the foundation of a Japanese tea shed. If the ground is not entirely level, dig and flatten out the area with a shovel to prevent the structure from settling unevenly in the future.
Pour a concrete slab or fill the area with tightly packed gravel to serve as a foundation for the tea shed.
Lay out a solid floor made of large treated timber planks on top of the foundation to prevent warping, water damage and insect infestation.
Calculate the intended exact width and height of the garden shed and start cutting two-by-fours to create the frame. You will need four long pieces per wall to form each wall’s square shape, a support beam reaching from the floor to the ceiling every 12 or 14 inches and stabilizing wooden slats between the support beams. Build a fourth wall that leaves space to install a folding Japanese style door. Use wood screws and a power drill to create and stabilize the frame.
Screw all four sides of the frame together on the foundation and nail plywood sheeting to the sides of the shed. Attach a pair of slanted roof trusses to the top of the shed with nails, so that the roof will overhang the open door area of the Japanese garden shed.
Nail large plywood sheets to the trusses so that the wooden roof extends over the entryway.
Decorate the traditional Japanese tea garden shed with a traditional folding door, paper lanterns and a stylish wood stain.