What are the SMACNA Standards for duct joints as per the duct size or pressure within the duct? I need table and page reference.

you can use the smacna handbook you can contact me at mail to have it 

i'll give you tables, refrences but any way many contractors rely in smacna like Carrier and you will find the detailed construction types according  to smacna in their handbook too

Refer to page of smacna where it show cases the different range of GI sheet gauge it states different joints based on guages

Dear Eng. Muhammad,

For the duct joints (Transverse Joints), you can read in SMACNA Standards "HVAC DUCT CONSTRUCTION STANDARDS" where you can find all the required information you are seeking for.

Transverse joints shall be selected and used that are consistent with the static pressure class, applicable sealing requirement, materials involved, duct support intervals and other provisions for proper assembly of ductwork outlined in the construction standards.

Pages81 to84 /303 ( FIG1-4 )

Regards

S.A.

Dear Sir,

 Can you forward SMACNA Standards handbook to my E-Mail I'd which is . it will be more helpfull for me.

Thanking you Sie