KlevaKlip Systems Pty Ltd - FAQ

Modwood - Frequently Asked Questions

How Does the KlevaKlip Work?

KlevaKlip is a multi-board concealed fixing system, working on a "fixed pitch" principle, that provides consistent gapping of the boards. As each board is inserted into the KlevaKlip, it tightens the previous board, providing significant holding power of the board into the clip. This mechanical holding is supported by the use of adhesive to provide a look, longevity and feel that is difficult to obtain with conventional fastening systems.
For KlevaKlip Adhesive system information

Where can I see images of both Powder Coated & Non Powder Coated ModWood Clips?

For all ModWood clips

What type of fasteners are required to fix the clips to the joists?

Timber joists use 8 gauge 25- 30mm Button Head Galvanised screws with a head size less than 2mm or Galvanised Connector Nails 32mm x 3.15. Metal joists use 10 gauge 18mm wafer Head galvanised self drilling screws with a head size less than 2mm or equivalents can also be used. When using Stainless Steel clips, it is essential that you use stainless steel fixings. Use counter-sunk heads if button heads are not available.

TIP: Time saving benefits can be achieved by utilising Coil Nailer gun to secure the second and subsequent rows of KlevaKlip's into timber joists

How many fasteners are required per clip?

he KT88 requires one fastener per board space (6 per clip) and

the KT137 requires two fasteners per board space (8 per clip).

What Joist types are suitable for the KlevaKlip Top-Fix Clip?

Treated Pine, Kiln dried Hardwood, Metal RHS or C Purlins are suitable for use with the KlevaKlip System For Laminated Veneer Lumber (LVL) joists please check with your supplier for suitability. F14 unseasoned hardwoods are not to be used due to their high shrinkage rates.

What size gap does the KlevaKlip provide between each of the Deck Boards?

Modwood Composites will provide a gap of around 4mm when using the KlevaKlips. This gap may vary over time in different climatic conditions.

What dimensions are the KlevaKlip's?

KT88 Top Fix Clips L 553mm x W 60mm
KT137 Top-Fix Clips L 568mm x W 60mm

What height are the Klevaklips?

The thickness of the metal is 1mm and the nipples/ridges are around 2mm in height= Total 3mm

How do I calculate how many KlevaKlip's I will require for my deck?

There are three methods you can calculate your Klevaklip numbers or use the Modwood Decking Calculator that calculates how many Modwood deck boards, KlevaKlips, Adhesve & fasteners to be used on your deck
ModWood Decking Calculator

Per Square Meters (PSM)

Coverage 4. 5 KlevaKlip's = Approximately 1 Square Meter
Example: 20 Square Meter Deck X 4.5 = 90 KlevaKlip's

Square Meters of Deck Per Box of KlevaKlips

Top Fix Clips (40 Clips) 9 Square Meters

What adhesive is recommended when fixing ModWood deck boards to the KlevaKlip's?

Inex>Bond, Fuller Toolbox, Sikaflex 11FC,Selleys 3 in 1.

Approved Adhesives For KlevaKlip

Board Type Approved Adhesives
Modwood Natural Grain Collection Grooved Boards  Fuller Toolbox, Selleys 3 in 1, Sikaflex 11FC
Note: When laying ModWood brushed side down, best practise is to clean the area to be adhered with white spirits approximately 10 minutes before adhesive is applied.

Role of Adhesives

For more information

How much Adhesive will I need for my deck?

Standard 400g of Adhesive will cover approximately 3 Square meters of deck

Can Klevalip be used for screens?

Whereas it is quite common for privacy screens to have a gap between the boards of 12 - 20mm, the KlevaKlip system provides a maximum gap of just 4mm between boards. In a screening situation with the wind behind the screen, such a small gap can effectively cause the screen to act as a "sail". This can generate substantial pressures on the boards/screen - in very strong winds, this pressure can be in excess of 200kg/sqm.

Inserting boards into clips at height can be quite awkward, particularly without adequate manpower or stable footing. In a worst case scenario, this can cause significant "tearing" along the side of the board during insertion into the clip, thus significantly reducing the holding power of the clip.

Given the above information, KlevaKlip Systems P/L do not recommend the use of KlevaKlip products for screening when the screen is subject to wind velocity from behind the screen of greater than 40 km/hr, or when the screen is greater than 2.4m in height. In such instances "face fixing" of the product with screws or nails should be done.

Can Klevaklip be used in ceiling situations?

Due to the difficulties in fully supporting boards whilst they can correctly be inserted into a KlevaKlip, KlevaKlip Systems P/L does not recommend the use of KlevaKlip products in situations of ceilings and soffits.

Can I fix the KlevaKlip KT series Top Fix clip directly fixed to concrete or tiled areas?

No, KlevaKlip KT Series cannot be directly fixed to concrete or tiled surfaces. Battens made from Treated Pine, Steel or aluminium with an absolute minimum of 50mm in height and approximately 50mm in width can be fixed to the concrete or tiled surface to aid ventilation to your deck and substructure. Battens should run in the direction of the fall of the concrete or tiled surface. Avoid closing in any sides or ends of your deck to aid further ventilation.

Are stainless Steel Clips available for Coastal or Salt water Pool areas?

Yes, There are two types of Stainless clip either the KT88S or the KT137S.

What type of clips can I use around swimming pool areas?

Only Stainless Steel clips can be used.

For Corrosion Resistance Document

What areas should I use Stainless Steel and Galvanised KlevaKlips?


For Corrosion Resistance Document


When using137mm x 32mm Modwood Marina Board Natural Grain Collection what type of KlevaKlip can I use?

The KT137S Stainless Steel clip will suit.

What Joist centres does KlevaKlip require?

KlevaKlip should be used as per joist centres recommended for the deck board you are fixing.

What Box quantities are the KlevaKlip's packaged?

Klevaklip Top-Fix Clips Boxes 40

What are the dimensions and weights of the KlevaKlip Top Fix clip boxes?

All our ModWood KlevaKlip boxes are approx: 600mm long x 240mm wide x 130m high

Galvanised clips including Powder coated boxes weigh a little under 11 kg

Stainless Steel clips boxes weigh a little under 10 kg

Can I use Klevaklip on mitre joints?

No, Klevaklip is not designed to use with Mitre joints.  

What type of material is used in the Klevalip's?

.95mm Z600 Galvanised or Z275 Galvanised + Powder Coated
.90mm 304 Stainless Steel

How can I remove a ModWood Board from the KlevaKlip?   

You can remove the boards as long as you have access at one end of the board. You will need to break the adhesive bond between the clip and the board with a stanley knife or similar tool. Next step (2 people preferable) down each side of the board you will see the uprights which hold the board into the clip- You need to prior both uprights apart with a knife, screwdriver or similar tool whilst  lifting the board up vertically. You will need to do this at each upright approximately 450mm centres.

To replace board clean of the adhesive from the clip, replace adhesive and engage board into clip.

Further information about engaging the board into the clips can be found on our web site


My galvanised clips have some rust spots on the edges - should I be concerned?

No - it is typical that some minor surface corrosion appears on the cut edge of galvanised products. The galvanising is still chemically bonded to the surface of the steel, therefore, provided you have installed your clips in line with the KlevaKlip Corrosion Resistance document, your surface corrosion will remain of a cosmetic nature and won't affect the performance of the clip.

Copyright © 2018 KlevaKlip Systems Pty Ltd