I think the curve is more decorative, someone else has said this elsewhere. I think particularly if I add that diagonal brace in the roof section it should be okay.
Hi I don't have an image. I haven't googled it. Its from years of experience. I could make it quicker than explain it. Just imagine making the two ends first using half lap basic joints. So you would end up with two squares. Set them on edge when glue has dried and place the two laterals between the bottom corners. Bit like making a box kite. Glue the corners to the laterals and clamp with sash clamps. Then drill a 1 inch hole through the corner and about 4 inches into the lateral. Drive a 1 inch dowel through the half lap into the end of the lateral.
Repeat with the other ends.
I think it is structural to an extent but not supporting a massive amount of weight, as much of that will be taken by the top two M&T joints on the back vertical piece and just the strength of that whole box section..? This is what I’ve been told elsewhere anyway.
I think I see what you mean - so drill through the lap directly into the end grain of the longer, lateral pieces?
Fair enough. I mean I’m definitely still keeping the curve as is, albeit cutting out of one 60mm board as the original was. I guess those vertical supports on the curve are adding a lot too.
Sorry just seen this reply - I think you might be right. I do tend to overworry this stuff, I think the fact this has to be structural is making me more cautious than usual - it’s less a problem if a table collapses! I’m based on Tyneside, think you’re midlands? Bit of a trek but thanks very much for the kind offer.
I did some work on a victorian canopy some years ago. One side had collapsed. The bottom string 3 x 3 was let into the wall the whole width till under floorboards. The rest was built off this. So this and the one on the other end took all the weight. The fancy fretwork under neath was just nailed to the joists. Was able to remove it whole clean it up and refit it.I think it is structural to an extent but not supporting a massive amount of weight, as much of that will be taken by the top two M&T joints on the back vertical piece and just the strength of that whole box section..? This is what I’ve been told elsewhere anyway.
The one below I’ve just seen while out for a walk has a much bigger roof section, almost twice the size of mine, so I think although they will be playing a part in the load bearing maybe not as much as it might seem?
It’s more this corner joint I can’t get my head around
Nor me. Learn something new all the time
No access to domino unfortunately. The original had the ‘harp strings’ (another new term learned!) tenoned in, but I accept the point and could easily screw those. Ditto the turned pieces which were also mortised in. The whole thing will be painted with a good few coats and consequently can be filled, sealed etc around any gaps on joints to minimise any water penetrating, but is also no harm and potentially easier to just use fixings.
Shouldn't be elaborate. For each side cut 4 lengths a little longer than necessary. Soldier them together side by side put some masking tape on to keep them together. Mark the half lap with your square. Set the blade depth to half thickness and run the 4 pieces together over your table saw. Move cut along to the end. You will have a series of stand ups left. Push them over with your thumb and clean surface up with a large chisel. Turn one around and it will lap over the other. Repeat with the other two and you have your square. I still think the arc and fretwork could be screwed or nailed on. I believe you said the old one was anyway so that couldn't have been supporting.No access to domino unfortunately. The original had the ‘harp strings’ (another new term learned!) tenoned in, but I accept the point and could easily screw those. Ditto the turned pieces which were also mortised in. The whole thing will be painted with a good few coats and consequently can be filled, sealed etc around any gaps on joints to minimise any water penetrating, but is also no harm and potentially easier to just use fixings.
All this aside, my main quandary is still the joint in the bottom corner and how to connect 4 pieces together. I’ve been playing around with some lap joint ideas based on what toolkit said, but worry it’s getting very elaborate. Maybe not so much as mortise and tenon on 3 sides perhaps…
…really must learn sketch-up
