I have an outdoor cooking area with a BBQ and Pizza Oven. It generally only gets used in good weather as preparing pizza dough when it's ******* down isn't a good idea.
The area I'm looking to cover is 4m wide by 2.2m deep. The roof will slope on the short length. I intend to cover the roof with 2440mm x 840mm Corrapol Stormproof Low Profile polycarbonate sheets.They need to be fixed at 500mm. I'm not looking to build a shed so the sides and front will be partly open.
I'm guessing that given the width I'll need 3 4x4 posts along the front and back. However, due to the current paths (I'm not planning on changing the layout) I will be taking a notch off one corner.
This is what the roof 'could' look like but I may be giving myself more work than necessary.
NOTE: these drawings are not to scale.
So I see the roof as being more like this:-
As I need to be able to fix the roof sheets every 500mm I will need 4 cross beams. To act as the main roof support I think I'll need jist/rafters at c.600mm spacing.
The questions I am hoping people more knowledgeable than me can answer are:-
1) Do I need the middle posts or could i do a single span across?
2) Do I need as many main beans (in green) as I have shown or could I use less?.
3) What size of timber will I need for the frame and beams? I had thought of 6x2 for the outer frame with 4x2 running 'vertically' (green lines) on my drawing with 2x2 running horizontally (green lines) at right angles on top of the 4x2.
I do have the option to make it a 4000mm x 2200mm and therefore remove the need for the 'notch'.
Am I over-engineering the roof or am I risking making it very heavy and it collapsing under its own weight?
The area I'm looking to cover is 4m wide by 2.2m deep. The roof will slope on the short length. I intend to cover the roof with 2440mm x 840mm Corrapol Stormproof Low Profile polycarbonate sheets.They need to be fixed at 500mm. I'm not looking to build a shed so the sides and front will be partly open.
I'm guessing that given the width I'll need 3 4x4 posts along the front and back. However, due to the current paths (I'm not planning on changing the layout) I will be taking a notch off one corner.
This is what the roof 'could' look like but I may be giving myself more work than necessary.
NOTE: these drawings are not to scale.
So I see the roof as being more like this:-
As I need to be able to fix the roof sheets every 500mm I will need 4 cross beams. To act as the main roof support I think I'll need jist/rafters at c.600mm spacing.
The questions I am hoping people more knowledgeable than me can answer are:-
1) Do I need the middle posts or could i do a single span across?
2) Do I need as many main beans (in green) as I have shown or could I use less?.
3) What size of timber will I need for the frame and beams? I had thought of 6x2 for the outer frame with 4x2 running 'vertically' (green lines) on my drawing with 2x2 running horizontally (green lines) at right angles on top of the 4x2.
I do have the option to make it a 4000mm x 2200mm and therefore remove the need for the 'notch'.
Am I over-engineering the roof or am I risking making it very heavy and it collapsing under its own weight?