Hi,

I want to make a pine shed supported by 4 pillars but I am in doubt regarding the rectangular sections I should use for the beams.

The structure has the following design (floor plan):

|-----380cm-----|

-O-------------O- ---
| | |
----------------- |
| | 270cm
----------------- |
| | |
-O-------------O- |
| | ---

Notes:
O = pillars
The 2 x 270cm beams are placed on top of the pillars
The 4 x 380cm beams are placed on top of the 2 x 270cm beams
There is nothing (no weight) covering this structure so it just needs to support itself


How can I calculate the sections of the rectangular pine beams that should be used in both directions?

Thanks/Brgds
j

On 7/11/2015 2:26 PM, wrote:
Hi,

I want to make a pine shed supported by 4 pillars but I am in doubt regarding the rectangular sections I should use for the beams.

The structure has the following design (floor plan):

|-----380cm-----|

-O-------------O- ---
| | |
----------------- |
| | 270cm
----------------- |
| | |
-O-------------O- |
| | ---

Notes:
O = pillars
The 2 x 270cm beams are placed on top of the pillars
The 4 x 380cm beams are placed on top of the 2 x 270cm beams
There is nothing (no weight) covering this structure so it just needs to support itself


How can I calculate the sections of the rectangular pine beams that should be used in both directions?

Thanks/Brgds
j


This isn't metric but it might help you anyway:

http://www.awc.org/calculators/span/...rcalcstyle.asp

Thanks
j