How to anchor deck joists to concrete?

[JesseS6]

Hi All,

Looking for advice on achnoring decking joists to concrete for a low level deck. My joists will be 140mm x 45mm with 140 x 19mm Merbau decking. Overall clearance from conreate to top of deck is 180mm.

Current plan is to use-

Carinya Heavy Duty 75 x 75 x 40 x 3.5mm Zinc Plated Reinforcing Angle Bracket

Dynabolt these to the concrete with - one - Ramset 10 x 75mm DynaBolt Plus Hex Nut Bolt (do i need to use something different on the perimieter of the concrete?)

Question 1 - what should I use to fix the Joist to the Angle bracket?

Question 2 - Is flashing or Protectadeck joist protection required/overkill?

Question 3 - This will be a picture frame deck, for the two ends that require a second joist with the offcuts, what screws should be used to fix these together, or do I need to run a bolt through?

Question 4 - where are washers required? 

Question 5 - Is an SDS Hammer drill best for getting through conrete, and is a impact wrench best for tightning dynabolts?

Question 6 - If I'm using angle brackets to fix the joists to the conrete, are noggins required?

Thanks in advance

Jesses6 

 

[JesseS6]

@EricL thanks! Very helpful.

What screws would you suggest for the subframe? (noggins etc) it's all 90x45mm

[EricL]

Hello @JesseS6 

I suggest using Titan 14G x 125mm CL3 Gal Bugle Batten Screw - 100 Pack just like its shown in this guide - How to build a deck by @MitchellMc. For the noggins you can use the same screw or a smaller gauge but nothing smaller than a 10g screw. Remember to drill pilot holes for all the screws to prevent splitting the timber.

If you need further assistance, please let us know.

Eric