Thanks Dave - the only weakness with the software is that it is US based and has all the US woods, so it becomes a bit of a guessing game as to what wood to select. I had no idea for instance that there is so many oaks in the US.
Anyway, my 'it looks right' approach calculates out at under 30 thou deflection so I think I've got it right !
Rob
Screwfix prices seems to have come down recently on these, but in the past I have got them from:
If you don't support them constantly you may find that the books don't stay where you put them.
I used the Sagulator and determined upon 675mm centres. I'm going for
150x25mm softwood in two 2700 lengths biscuit-jointed for the shelves. The price discrepancy between TP (=A35.91/metre) and our local builder's merchant (=A32.61/metre) was quite marked.Edward
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Consider also what supports the wall and how much extra weight you are adding to it. Is it a structural wall or a block wall built on the floor or a stud wall? I have once seen a wall fall over because too many books were put on shelves attached to it.
Robert
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It's an external wall. I used good quality 3.5" screws (10s) into good fixings. I sincerely hope the wall doesn't fall down.
Edward
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