Gather your supplies
■ 2440 x 1220 x 12mm marine plywood (1)
■ 70 x 35mm x 2.4m H3 treated pine (1)
■ 86 x 19mm x 3.6m spotted gum decking (3)
■ Sides 443 x 650 x 12mm exterior plywood (2)
■ Ends 425 x 715 x 12mm exterior plywood (2)
■ Top 414 x 650 x 12mm exterior plywood
■ Cross pieces 70 x 35 x 414mm H3 treated pine (2)
■ Legs 70 x 35 x 412mm H3 treated pine (4)
■ Decking 86 x 19 x 674mm Spotted Gum decking (15)
■ End cover panels 444 x 756 x 12mm exterior plywood (2)
You’ll also need
Power saw; exterior PVA glue; drill; Clever Tool countersinking bit; 50mm decking screws; 45mm wood screws; 4mm plastic spacers; 56mm hole saw; 250ml natural decking oil (try Integrain Ultradeck); painting equipment; acrylic undercoat; 1 Litre Dulux Weathershield Low Sheen Exterior Paint in Glacier Blue; 20mm wood screws; umbrella stand; umbrella
Cut long edges of sides at a 20° angle, ensuring angle on each edge goes in same direction through plywood. Cut ends in shape of a trapezium with side edges going in opposite directions across plywood.
Glue 1 short edge of 1 side and butt into angled edge of 1 end. Make angled edge of side flush with bottom edge of end. Predrill with Clever Tool and use 50mm decking screws to join end to side. Repeat to attach second side to other angled edge of end and second end to open edges of sides.
Repeat Step 2 to attaché remaining end to sides.
Cut top so long edges are at a 20° angle, ensuring angles go in opposite directions through plywood. Glue long edges of sides and sit top on them between ends. Screw through ends into top to join.
Cut cross piece with 20° angle at each end, ensuring angles go in opposite directions through timber. With box assembly sitting upside down, glue and screw cross piece into corner of box with 45mm wood screws. Repeat for opposite corner of box.
Cut leg with 20° angle at each end, ensuring angles go in the same direction through timber. Place on inside corner where side meets end, with end of leg slightly proud of bottom of box, and screw in place. Repeat for legs in other corners of box.
Starting from centre, lay out decking on top of box using 4mm plastic spacers to create a gap between them. Decking will overhang sides of box by 20mm to allow for thickness of decking on sides. Screw to box using 50mm decking screws set 25mm from end of board. Repeat for other end of decking boards.
Place a decking board on side and push against decking overhanging top. Predrill and screw board into side 25mm from each end. Continue screwing boards to side, using 4mm plastic spacer to maintain an even gap. Repeat to attach decking to other side of box.
On centre decking board on top, mark a point 220mm from 1 end. Use this as centre point of hole for umbrella. Drill hole using a 56mm hole saw in drill.
Apply 2 coats of natural decking oil to decking on table, allowing to dry between coats as per decking oil instructions.
Cut end cover panel in the shape of a trapezium with side edges going in opposite directions across plywood. (Angle of these cuts is 20°.) Undercoat then paint 1 side and all edges of panel in 2 coats of Weathershield Low Sheen Exterior Paint in Glacier Blue. Allow to dry after each coat as per instructions. Place against end of table so top and side edges are flush with decking. Screw from inside of box into end cover panel using 20mm screws. Repeat for other end of box.
Place table over umbrella stand and line up hole in top with stand. Insert umbrella through hole in unit into stand.