Joining Oak Beams

Question

I am building a lean-to car port and have installed the 3 uprights in 100mm x 100mm x 3m in oak.  I was planning to build the roof structure in softwood using 75mm x 50mm with a 5m long cross member on the top of the oak uprights.  Due to an ordering error I have 2 extra 100mm x 100mm x 3m oak pieces. How could I connect these on the top of the uprights, I was planning to use 150mm timber lock through the soft wood cross member but if using the oak would have to abut the 2 ends of the oak beams on top of the  centre upright.  Is there a special bracket/connector for the centre column?  Thanks in advance for your comments.  Andrew

William · Accepted Answer

So if I'm understanding right this will be a horizontal part ? Joining the two oaks will require making up a scarf joint.

Is this part taking the roof load ? (Acting as a roof plate essentially

If so I would just advise you to take it on the chin and order again

Michael · Answer

A Half lap joint would be the easiest way to join the two pieces, I would suggest using dowels either side of the center point to really add some strength back into it along with a decent external wood glue if it's to be outside.

Garry · Answer

Hi
 I would suggest, you cut the ends in centre down 200mm and cut one side of each off  join them with glue and pegs, cut from the of cut timber, drill, pegs clamp together over night

Joining Oak Beams

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