Any carpenters/joiners/woodworkers in?

My new shed arrived yesterday, flat-packed, and is on the agenda for the build to be carried out over the next couple of weeks (allowing time to clear out and dismantle the old one).

The floor/base will consist of a frame made from 63mm x 19mm studwork (comes in 2.4m lengths), which I will then wrap in damp proof course to keep it dry.

The base has to be 3.03m in length which will obviously require me to join two pieces of wood together to get the desired length - - do I:

a) use a couple of flat jointing plates screwed on to either side of the join to hold it together until the flooring boards are screwed on to then give it full integrity

b) cut overlap joints, whacking a screw or two through the overlap section (is this overkill given that the whole thing is being topped off with 11mm thick OSB boarding screwed down to the frame?)

c) something else (I am no joiner, so very much open to suggestions)


Also, my brain is telling me to use the studwork with the 63mm face horizontal, purely so there is more of it in contact with the top boarding to spread the load; is my thinking correct?

 

Sorry, sorry - its not 19mm deep, its 63mm x 38mm - - the 19mm was banging around in my head as it was half of the 38mm that would be for the overlap.

The DPC wrap is 100 mm, so would cover the bottom of the studwork, and then about halfway up each side to hopefully allow airflow whilst not allowing the timber to stand in any ponding water for any length of time.

EDIT - the shed is a metal one, which will have instructions for its own construction, but the base and floor is not included. It simply needs to be 303cm x 283 cm

 

Just working it out with the 63mm side horizontal, 6 x joist lengths would have gaps (bridged with a few spars along the length of the gap) of 400mm - - - so in English they would be about 16 inches apart with the 11mm flooring screwed down on top; surely that should be man enough for the job? (certainly much higher spec than the current shed)

 

I am aiming to make a sort of 'grid' of joists (roughly like the image below), then laying OSB3 boards on top, screwed down onto the grid frame, to give a flat floor. The whole thing will then be levelled using either building bricks or more timber, isolated with DPC to prevent any dampness travelling.





EDIT - I understand that a table saw like this one has a maximum cutting depth (in the case of the one in the link its 45mm), but do they also have a maximum flat width for cutting boards?

 

It is for the base only, yes. The whole thing will be sat on concrete, so the wood is not the only thing holding the building up

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Champion, thank you

The OSB boards will be at right angles to the joists, and the intention is to have them screwed down to each joist, and then try to have the other joists that are bridging the gaps between the joists set so they are under the join between sheets.

I have access to a circular saw, I was just wondering if it might give a straighter cut? I am not the best at cutting dead straight (possibly partly due to the el cheapo saw I have)

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Thanks again

I shall endeavour to take pictures as I go

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I usually get big sheet materials cut to size at B&Q, they do one cut for free and this means they are easier to handle and get into the car. Saves faffing about with saws if you're not great at cutting straight.

 

I've had a look at the saw I have in the shed, and its pretty past it to be honest - its done well in fairness to it, I've had it years and it was about three quid if I remember correctly.

Is there any particular brand or style of saw that I should be looking at as a replacement?