To make this D.I.Y. project even easier, we had our timber cut at our local Bunnings Warehouse. Our cutting list is:
Cut the 90mm x 45mm treated pine to:
Cut the 70mm x 35mm treated pine to:
We want the ends of the timber racks that hold the bikes to taper so they're flush with the frame. To do this take a piece of the 90mm x 45mm (500mm) treated pine, use a combination square to mark 20mm down for the 90mm face and then use a measuring tape to measure and mark 100mm across on the 500mm face. Use the combination square to draw a line between the two points. On the same side of the timber, repeat these measurements on the opposite long side. Repeat this for the other five pieces of timber.
Clamp the timber to the workbench and cut the taper with the circular saw. Then cut the taper on the other end. Repeat for the other five pieces of timber. Sand the timber to remove any rough edges.
Check the width of each bike's tyre before starting this step. Our framework will feature two 40mm and one 55mm railing widths to accommodate two road bikes and a mountain bike. Lay out your timber to form a framework, placing your 500mm rails at each end and the middle of the framework, making sure they're flush. Place the 500mm rail of the inside edge of your back and front 1200mm pieces, square it off using a combination square. On the inside line measure 40mm and square that off. This will be the opening for our bike rail to sit in. Repeat this in the centre with another 40mm rail. On the other side of the frame, measure 55mm from the line to allow for a 55mm width. Transfer these markings from the back piece on to the front piece using the square.
Clamp the timber to the workbench. Pre-drill two holes per rail through the back piece into the rail. Countersink slightly deeper than the bugle head for each hole. Then, apply glue on the end of the timber. Screw it off using a 65mm batten screw with a batten screw bit. Repeat to secure all of the rails.