purlin spacing?

[red61cj5]

Are there any hard and fast rules for horizontal wall purlin spacing? Im guessing every 2-3 feet is about right. Im going to have 12 ft walls, bottom 4 feet metal roofing wainscoting, top 8 feet will be fake board and batten with T-111 and furring strips. Ill block vertically every 4 feet to catch the plywood edges. Im trying to put together a take off for the lumber yard on my 28x48 pole.

 

[NUTTSGT]

What are you using for insulation?

If you're using 24"OC wide insulation (23") that's where I would space my insulation.

 

[theoldwizard1]

Horizontal, non-load bearing members in a call "girts".

The main purpose of girts is to make the installation of exterior and interior sheathing and insulation easier.

 

[MagKarl]

As previously mentioned, I'd plan for girts based on your expected needs for insulation and sheeting. Mine are about 3 feet and though it is fine for the exterior sheeting, it's going to be a pain if I ever decide to insulate or add interior sheeting. 24" would use more material initially but make future work easier.

 

[Coyote556]

mine are 30"

 

[ladderwell]

Mine are 24". perfect for commercially available insulation, and sheet goods. Otherwise everything will be custom, and custom frequently means Pain in the a$$.

 

[Justanoldguy]

I generally like any vertical/horizontal grids to be 24" oc.
Fits most panel sizes which ever way you lay them.

 

[red61cj5]

Looks like 24" it is, I probably shoulda thought of that myself, but that's why Im here. Thanks to all

 

[lakeroadster]

A purlin spans between the rafters.

A girt is a horizontal structural member in a framed wall.

24" is what was used on my barn also.