Gather your supplies

• A Side ribs 2400 x 750 x 15mm CD plywood (4) • B Grinding rails 1500mm x 25XD galvanised pipe (2) • C Ramp battens 70 x 45 x 1500mm H2 treated pine (12) • D Centre ribs 2355 x 750 x 15mm CD plywood (4) • E Bottom battens 70 x 45 x 470mm H2 treated pine (8) • F Studs 70 x 45 x 1410mm H2 treated pine (3) • G Plates 70 x 45 x 800mm H2 treated pine (2) • H Noggings 70 x 45 x 332mm H2 treated pine (2) • I Upper lining 7mm CD plywood, various sizes • J Lower lining 7mm CD plywood, various sizes • K Platforms 1500 x K820 x 15mm CD plywood (2)