KlevaKlip Systems Pty Ltd - About Joist Supports

 

Click Here for USA Adjustable Joist Support

The KlevaKlip Adjustable Joist Support AJH45G (Aus/NZ) is now available in a “full kit” form – AJ45KIT – containing all your bolts, nuts and concrete fixings – making this product even easier to useSee below for details:

What is the KlevaKlip Adjustable Joist Support AJ45KIT & AJH45G (Aus/NZ)? AUSTRALIAN PATENT 2012261552 - United States 14/098253

Watch our Adjustable Joist Support (Aus/NZ)Install Video

 Download AJ45KIT Brochure  

 Download AJH45G Brochure

 Download Graph "How to achieve joist heights using KlevaKlip Substructure Products" 

 

The Adjustable Joist Support has been designed specifically to enable decks to easily be built over concrete slabs in areas where limited ground clearance is available. It is ideal for use when the step-down from your door to your concrete slab is between 100mm (minimum) and around 220mm (maximum). For exact heights please see our Minimum and Maximum Top of Joists Height information or "Heights achieved" grid (both listed below) using 60mm,100mm & 120mm M10 bolts and 70,90, & 140 x 45mm joists.

The AJ45KIT & AJH45G has been specifically designed to be used with 45mm wide treated pine timber joists for the Australian & New Zealand markets.

 

​360° view Adjustable Joist Support Assembled

 


Adjustable Joist Support in Action 

 

 

Click to enlarge 

How is the Product Purchased?

There are now two options  available when purchasing the Adjustable Joist Support- either the Adjustable Joist Kit which includes Bolts, Nuts, Washers and dynabolts or the Adjustable Joist where they are not included.

Option 1: Adjustable Joist "Kit" (AJ45KIT): Now Available 

The product comes in boxes containing 16 joist supports,16 base plates, 32 x 100mm M10 hex bolts,64 x M10 hex nuts, 32 x M10 washers and 16 x 12 mm Dynabolts.

Option 2: Standard Adjustable Joist (AJH45G):

The product comes in boxes containing 24 joist supports and 24 base plates.(see photo below) Bolts, nuts, washers etc.are purchased separately from your hardware store/merchant depending on what height you want to achieve.

Each Adjustable Joist Support ( joist holder + base plate) requires 2 x M10 Hex Head Bolts, 4 x M10 Nuts & 2 X M10 washers, 1 x 12mm x 50mm Galvanised 12mm dynabolt or x 10mm x 60mm masonry bolt or similar.

 

Differences between Adjustable Joist "Kit" (AJ45KIT)verses Standard Adjustable Joist Support (AJH45G)?

Advantages

Disadvantages

 

      AJ45KIT- How Packaged in box            AJH45G- How Packaged in box

         16 Base Plates & Joist Supports                             24 Base Plates & Joist Supports

     Includes: Bolts, Nuts,Washers & dynabolts Excludes: Bolts, Nuts,Washers & dynabolts or masonry bolts           

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 

    

 Advantages of the Adjustable Joist Support 

Minimum and Maximum Top of Joist Information

Minimum top of joist heights

76 mm – fixing joist bracket direct to concrete no base-plate no bolts and using 70mm joist

 

86 mm – using Joist Support KIT- lowest height achievable using base-plate, 100mm bolts and joist bracket with 70mm joist

86 mm – using Adjustable Joist Support- lowest height achievable using base-plate, 60mm bolts and joist bracket with 70mm joist

 

106 mm – using Joist Support KIT- lowest height achievable using base-plate, 100mm bolts and joist bracket with 90mm joist

106 mm – using Adjustable Joist Support - lowest height achievable using base-plate, 60mm bolts and joist bracket with 90mm joist

 

Maximum top of joist heights

150 mm – using Joist Support KIT,100mm bolts & 90mm joist

170 mm – using Adjustable Joist Support, 120mm bolts & 90mm joist

 

180 mm – using Joist Support KIT, 100mm bolts & 120mm joist

200 mm – using Adjustable Joist Support, 120mm bolts & 120mm joist

 

200 mm – using Joist Support KIT, 100mm bolts & 140mm joist

220 mm – using Adjustable Joist Support, 120mm bolts & 140mm joist

Note – the above information is a “practical” rather than an “absolute” document. There will be a number of ways to achieve the heights mentioned with different sized joists, however the installer should always be mindful to operate within the KlevaKlip product parameters and relevant joist span tables 

"Heights achieved" when using 100mm for AJ45KIT, 60mm & 120mm long M10 Hex Head Bolts for AJH45G Adjustable Joist Supports (Aus/NZ)? 

Note: All measurements for 60mm &120mm are based on using Galvanised Zenith brand M10 hex head long-threaded bolts.

 Adjustable Joist Type Hex Head Bolt Length Min Height to Bottom of Joist Max Height to Bottom of Joist Min Height to Top of 70/90mm Joist Max Height to Top of 70/90/140mm Joist

Adjusta​ble

Joist "Kit" (AJ45KIT)

100mm 16mm 60mm 86* / 106mm 130 / 150 / 200mm

Standard Adjustable Joist

(AJH45G)

 60mm 16mm 20mm 86 / 106mm  90 /110
120mm 18mm 80mm 88* / 108mm 150 /170/ 220mm
**No Bolt 6mm 76 / 96mm

* If using long bolts at low heights, to prevent the bolts protruding past the top of joist, the end of the bolt will need to be cut off.

** When Using Joist Support Only.

Span requirements for base- plate positioning for AJ45KIT & AJH45G (Aus/NZ)

All based upon "continuous span" with joists at 450mm between centre's.  

      Joist Size Recommended Span (mm) Maximum Span (mm)
70 x 45 MGP10 800 1200
90 x 45 MGP10 1000 1500
90 x 45 MGP12 1200 1600
*120x45MGP10 1200 1800
*140x45MGP10 1200 1800

 * Joist span limited by lateral loading on bolts

​Typical "Top of Joist" heights achievable with KlevaKlip Deck Building Products


 

 Download Min & Max Top of Joist height Information PDF

 

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