18 Strutting Beams 

Bravo buildsum 👍👍👍

Why would you pack the combined counter/strutting if the hangers are connected to it, if the beam deflects so would the ceiling and hangers

hanging beams be hung to counter beam or fixed to counter beam using metal hanger?

What grade/type of wood is the tables specified for? Lvl or radiata pine etc

Another Q! I require a long strutting beam: two strutting beams supported at 3 points in total. It's not clear to me what is best practice for joining the 2 strutting beams atop the middle support. The beams are likely to be quite tall at 2/190 to 2/290, depending on timber selected, and will have laterally restraint at each support per Figure 7.18. A: Would it be a half-lap joint, like for underpurlins with skew nails (AS1684.2 Figure 7.6)? B: Or, a mitre joint with skew nails per Figure 9.3? C: Or, a butt joint with metal brackets per Figure 9.3 but the through bolts would be up to 300mm long? D: Nail plates sides, skew nails top, laterally restrain with strap? (edit): Is the butt joint out of the question, because the bearing area at the end of the beam must be 70mm, or does the fixing of the joint negate this? (support is 90mm wide)

Can you say more about the practice of sizing up timber for efficiency (5:45)? When would you not do it?

Hey, how would you join hanging beams to combined counter/strutting beam. Would you just use metal hangers, or would it be stronger if you notch the hanging beam over the counter/strutting beam and then also provide the metal hangers?

hello there, just wondering how do i determine where best to set my combination beams?

Sounds exactly the same as the blue dog explanation

hi, is the combined strutting/hanging beam must has 25mm clearance from the ceiling joists?

Hi John , how do I workout the beam size that’s directly under a load bearing wall of the upper story house

Hi John, I just checked TABLE A33, there is no strut spacing at 3600mm in the table. Maybe our tables are different?