6 critical considerations of hardwood decking timber prices you need know before
Wow doesn't a wide board decking board look great. More and more architects, builders and homeowners are opting for wideboard decking boards over their narrow 90mm cousins.
So it is ok to do a straight swap from a 90mm to 140mm hardwood timber decking board? Before you race out and order your decking timber:
There's six critical attributes you need to be mindful of about hardwood decking timbers,
especially when you compare 90mm hardwood decking to 140mm wide board hardwood decking for your deck construction.
1) 140mm hardwood decking timber is 60% wide than a 90mm board..
So, initially it appears as though the extra width offers some great installation advantages. Firstly, there are a lot less boards to man-handle, then sort and grade, then cut and lay. Secondly there's a lot less screws to mark out, pre-dill, countersink then screw in. However you need to consider how your going to fasten these wide decking boards to your timber joists. As this can introduce some serious additional installation costs you may not have considered.
2) As hardwood decking boards widths increase, so does the risk of cupping and splintering.
It is recommended by most hardwood decking suppliers that nails are not to be used to fasten wideboard decking boards to the joists. If you do use nails, most suppliers strongly recommend you use 3 nails per board. Some suppliers even recommend you screw and glue these wide decking boards at every joist.
3) Which thickness hardwood decking board do I choose?
The thickness of a decking board can make massive impact to the total cost of your decking materials. Cheap decking timber prices start off from 19mm Boards, then range from 25mm, 32mm, 40mm in thickness. In short the thicker the board, the stronger and longer the fastener you will need. So the cost can end up being be exponential more than a standard 90mm decking board.
4) So now you need to compare screws vs nails for your hardwood decking wide boards.
Nails require 4 steps:
- marking out,
- pre drilling
- hammering in
- punching off.
There is a full range of nails to choose from, but stainless steel nails aren't cheap.
Screws require 4 steps:
- marking out
- pre drilling
- screwing in (you can plug them if you want)
So depending on what thickness you decking timber is, your nail or screw length will change. It is not uncommon for wideboard hardwood decking timbers to shear screw heads.
4) BRANZ has stated that wider decking boards...
have more movement than traditional 90 mm wide decking, therefore larger gaps between the boards will be required to accommodate the swelling that will occur when the boards get wet. They state that around 6 mm gap is required to ensure sufficient airflow between the decking boards
5) Generally the hardwood decking timbers
in wide board profiles are machined smooth making them seriously dangerous when a little bit grimy in winter.
6) Be sure to oil your deck thoroughly and regularly to maintains its integrity.
At least twice annual is recommended. We do not recommend staining your deck as it is very very difficult to keep the colour consistent especially in areas with different foot traffic.
If you want to avoid having to make all the above decisions and hassle, be sure to visit www.outdure.com for wideboard hardwood timber decking board alternatives, decking kits and hidden deck fasteners.