Redpath Tunnelhouse Mk2 Manual page 3

Step 1: Join together the side base rails:
Assemble each side base rail use 2 x 16mm screws supplied in the order and the lengths shown in the chart below.
Helpful Hint: For example if the building is facing north to south, assemble the side base rails so that the 1
west side begins at the "south end" and the 1
See the side base rail assembly video on our YouTube channel
3m Uses 1 rail 3087mm no join
4.5m Join 3587mm & a 1m
6m Join 3587mm & a 2.5m
7.5m Join 3587mm & a 4m
9m Join 3587mm +3m +2.5m
Join the side base rails so that you have two equal length rails & have the internal hoop saddles opposite each other.
The Duralock groove faces to the outside and along the top edge of each of the side rails See image BR2 page 5
The pre-fitted steel saddles face to the inside and should be at 1.5m spacing if the rails are in the correct order of assembly.
Use two 16mm screws to connect the rails together. See image within BR1 below
Step 2:
Stand up the pre-made door end and back walls, secure them to side base rails with 3 screws.
finish flush at their ends with the outside face of the end wall base rail (See Pic BR3 and You tube video of wall assembly)
* Stand up the rear wall - the Duralock groove for the rear wall faces to the outside. Check the wall is vertical and use three screws
to connect the end of the side base rail to the rear wall base rail see Images BR1 & BR2 & BR4 below and Page 4
* Stand up the front wall – The door guide faces to the outside
Check the wall is vertical and use three screws to connect the end of the side base rail to the rear wall base rail see Images BR1
& BR2 & BR4 below and Page 4
BR1 - Sleeve the side base rails togther and stand up and attach the front and rear walls,
assembly and standing up end walls video on our YouTube channel
Note, the door end
base rail has the door
guide facing to the
OUTSIDE,
Effective from 31-Oct-23
3587mm rail on the east side begins at the "north end".
st
10.5m Join 3587mm +3m +4m
12m Join 3587mm +3m +3m +2.5m
15m Join 3587mm +3m +3m +3m +2.5m
18m Join 3587 +3m +3m +3m +3m +2.5m
21m Join 3587mm +3m +3m +3m +3m +3m +2.5m
24m Join 3587mm +3m +3m +3m +3m +3m +3m +2.5m
3587mm rail on the
st
The side base rails
See the side base rail
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