Hello,
I have a detached single skin brick garage (with two brick piers on each length of wall) built in 1961.
Span 8'10"
Wooden Wall Plate Width 3" (sits on top of the single skin brick wall).
Rafters spaced at 17".
Existing Rafter Ties are approx 3"x2" timber spaced at 5.5' intervals.
I'd like to create some joists so I can store more stuff in the roof void. I'm not planning to board it over as I appreciate this will add a lot of weight.
I was considering C16 timber, either 4"x2" or 5"x2" (metric equivalents) to span the 8'10" at 17" intervals to match the rafter spacing. I would rest these on the existing 3" wide wall plates with ends angled to match roof line (provided I can manoeuvre them into place) and nail or screw sideways into the existing rafters so they act as rafter ties as well as joists for storage. I'd leave the existing timbers in place, and simply put the new joist/tie on the opposite side of the rafter in those instances.
Any tips or advice much appreciated. Especially with regards to which wood type and dimensions to use, whether to screw or nail into rafters, and whether I am likely to be able to manoeuvre them into place in one piece? Thanks
I have a detached single skin brick garage (with two brick piers on each length of wall) built in 1961.
Span 8'10"
Wooden Wall Plate Width 3" (sits on top of the single skin brick wall).
Rafters spaced at 17".
Existing Rafter Ties are approx 3"x2" timber spaced at 5.5' intervals.
I'd like to create some joists so I can store more stuff in the roof void. I'm not planning to board it over as I appreciate this will add a lot of weight.
I was considering C16 timber, either 4"x2" or 5"x2" (metric equivalents) to span the 8'10" at 17" intervals to match the rafter spacing. I would rest these on the existing 3" wide wall plates with ends angled to match roof line (provided I can manoeuvre them into place) and nail or screw sideways into the existing rafters so they act as rafter ties as well as joists for storage. I'd leave the existing timbers in place, and simply put the new joist/tie on the opposite side of the rafter in those instances.
Any tips or advice much appreciated. Especially with regards to which wood type and dimensions to use, whether to screw or nail into rafters, and whether I am likely to be able to manoeuvre them into place in one piece? Thanks
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