CONSULTATION » DECKING BOARDS » Saw Blade
How do I find the right saw blade?
Hardwoods place special demands on the tools used. Especially when sawing, the right choice of saw blade can be crucial and make installation much easier.
What format should my saw blade have?
The format of circular saw blades is usually specified as follows: Ø diameter x Ø bore (saw holder) and number of teeth, e.g.: Ø 210 mm x 30 mm x 60 Z.
For circular hand saws and plunge-cut saws, the size of the saw blade is determined by the housing of the respective model. The hole for the saw blade is also specified. By using a reducing ring, there is at least some flexibility with the bore (saw blade holder), otherwise please first check which format your saw prescribes for the saw blade.
Especially with cordless circular saws are Thinner saw blades to. Thanks to the thinner design, less energy is consumed with equally good cutting results. This is also referred to as thin cutting. However, these saw blades can also be used with “normal” circular saws.
What material should my saw blade be made of?
Carbide (HM) saw blades are recommended for cutting hardwoods. In contrast to chrome-vanadium (CV) saw blades, the teeth on these are set/soldered onto the “master blade” and are made of a carbide or diamond material. These are much more resistant to heat and require significantly less regrinding than pure CV or even HSS steel and can generally also withstand nails in wood.
TCT saw blades are often also referred to as HW (carbide material) and also have the best price-performance ratio due to the combination of the two materials (the more expensive material is only used for the teeth).
What is the right number of teeth for the saw blade?
The number of teeth on the saw blade determines both the cutting quality and the feed force when sawing, i.e. how much wood is “removed” with one tooth. The decisive factor here is that the number of teeth must always be seen in relation to the size of the saw blade.
Do I need a low or high number of teeth?
With a low number of teeth, less (feed) force is required as the teeth are larger and remove larger chips. In addition, larger teeth are less prone to clogging. However, these are also coarser in comparison and provide a poorer cutting pattern. A lower number is suitable, for example. good for longitudinal cuts along the grain of the wood. However, the cutting pattern is rather rough.
Conversely, a higher number of teeth results in a cleaner cut, but also requires more (feed) force, as less wood is removed with the teeth. There is a risk of the saw clogging, especially when making lengthwise cuts. However, finer teeth are very suitable for cross cuts.
The right number of hardwoods for decking construction
For tropical hardwoods, such as those we have in our range, the saw blade should have a medium to high number of teeth. This gives you a relatively clean cut for the cross-sections of the planks when you cut them at the end. On the other hand, you still have enough feed force to cut a plank lengthwise. This can happen if your decking surface cannot be covered with whole boards alone or if you have to cut the boards to size for the facing.
What does free cutting mean for saw blades?
In the case of saw blades, free cutting refers to the property that the teeth are wider than the main blade. This is achieved either by actually using wider teeth (carbide saw blades) or by setting the teeth (CV saw blades).
This causes less friction and heat when sawing, as only the teeth are in contact with the wood when cutting. This also prevents the blade from jamming in the saw kerf when sawing (see picture). The advantage of wider “set” teeth compared to set teeth is the longer service life (less grinding required). For this reason, wider teeth should be preferred to set teeth, especially for hardwood.
Which tooth shape is the right one for hardwood?
There are different types of tooth shapes and their arrangement on the master blade. The most common tooth shapes for TCT saw blades include alternate teeth, trapezoidal teeth or trapezoidal flat teeth. The correct tooth shape depends on the intended use.
For cutting tropical hardwoods in decking construction, we recommend the alternate tooth for the TCT saw blade. Due to the alternate grinding of the teeth, each individual tooth is less stressed. This results in a longer service life (less frequent regrinding) and smoother running when sawing. In addition, the pronounced tips of the teeth result in a high cutting quality, both for transverse and longitudinal cuts.
Videos of the terrace construction
How do you cut the boards with a saw? Find out here in the video “Cutting the boards to size”, as well as everything else in 13 videos about building a wooden deck – from selecting the material to laying the boards and caring for the wood.
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Table of contents
Overview of the process
Calculate demand
Calculate costs
Order wood samples
Wood decking shipping
Temporary storage
Building instructions for wooden decking
Shopping list
Preparing the substrate
Meadow or earth
Stone or concrete
Roof or balcony
Slope
Laying the foundation
Creating height compensation
Laying the substructure
Installing decking boards
Select saw blade
Screwing decking boards
Assembly instructions for decking screws
Assembly instructions Clips
Veneering wooden decking
Building stairs
Decking boards crooked
Typical errors
Maintain
Cleaning
Enjoy
Decking quality
Best decking wood
Wood species comparison
Manual sorting
Cracks and curvature
Durability of wooden decking
Wood vs. aluminum
Concealed screw connection comparison
Branded products
Finger-jointing
