Replies

1. 
   BossHog | Jun 04, 2002 08:00pm | #1

   There's a lot of difference between what you CAN span and what you SHOULD span.

   There are some span tables here:

   http://www.southernpine.com/tables/

   Regardless of what the tables say, I'd never stretch a 2X6 that far. Your length to depth ratio is almost 35 to one.

   And of course, check on local codes. We don't know your local loading requirements and can't give you a definite answer.

   Credit cards? It amazes me that people can dig themselves into such a deep hole with such a little piece of plastic

   .

2. 
   OneofmanyBobs | Jun 05, 2002 01:45am | #2

   This is a pergola thing? No actual roof - just slats?

   No, a 2x6 will probably not collapse under the weight of a few

   2x2 slats. Yes, a 16 foot 2x6 may look like a pretzle

   after a year in the sun and rain without support. I

   personally would use a much deeper joist. I don't know

   what the code is here, but would guess around 2x10 is needed.

1. 
   junkhound | Jun 05, 2002 01:57am | #3

   Why not do the cable rail trick, no "joists" at all.

   4 posts, 4X6 around periphery only, string 1/8 galvanized cable and staple the slats to those.

1. 
   FastEddie1 | Jun 05, 2002 05:31am | #4

   Sounds like a giant banjo string.  How much tension do you have to put on the cable?  Does it tend to cause the 4x6 to bow inward?  Please explain how you staple the slats to the cable.