Sealey GSS1508 - Manual (Page 10)

Step 3: Assemble side wall panels
Place 2L the sheeting on your work table and tap or slide in 21A top channel and 21B bottom
channel. Fix and position the 32 mid wall channel by the self tapping screws. Fix 21B the bottom
channel by the self tapping screws but not 21A the top channel in this stage. Note that the small
lip of the channel is always facing out. This is to ensure that rain water can not build up inside
your shed. Repeat the same steps for 2L the other side wall.