Decking Steps

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Repeat this action to all tread markings on both stringers.
Finish by chiselling out the grooves with a sharp chissel. The more saw cuts, the
easier the chisselling.
Step 6: Cut all tread timber, 150x50, to the required length, in this case 840mm. (10
in all, 2 per tread)
Step 7: Lay one of the stringers on even ground or the floor and insert the treads
into the rebated grooves. fig.7
Step 8: Place the other stringer on top of the treads mirrowing the bottom stringer.
Nail through the stringer into the treads using 100mm or 90mm galvanised jolthead
nails. 3 nails per side per piece of tread timber. see fig.8
Step 9: Cut riser boards and nail against back of treads. see fig.9
Step 10: Fix the steps in place. Nail the top of the stringers to the deck structure.
Temporarily pack with blocks of wood under the bottom tread untill treads are level.
Dig a hole 250x250x250 under each stringer and fill with concrete. Place a
galvanised wire or bracket into the wet concrete against the the two stringers.
When the concrete has cured (2 days) place a piece of dampcourse membrane,
melthoid or similar under the stringer and on top of the concrete pad. This prevents
moisture from the concrete pad going to the timber. See fig.10
Remove temporary packers from under bottom tread and nail or staple the
galvanised wire or bracket to the stringers.
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