Wooden terrace on studs: how to lay it?

Wooden terrace on studs: how to lay it?

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You have decided to build a wooden terrace on studs in your garden. Whatever the nature of your soil, it must always be hard, stable and level. Once you have this base, you can start installing your wooden deck. Find more articles on the theme: Quotation of exterior landscaping works

Mount a wooden terrace on concrete studs

There are several methods for placing your wooden deck on studs. These are made of concrete. It is necessary to fix the joists and continue with the decking (construction of a tray). Concrete studs are used especially when the ground is clayey, unstable, when there are galleries below or when the terrace is high. You have to know how to level concrete studs because it is not easy, and you have to wait until the drying is complete to start mounting the wooden terrace.

The wooden terrace on PVC studs

This mounting technique is easier than the previous one. It is used in the following cases: on a concrete slab or on an old paved terrace or when the soil is stabilized with gravel or sand. This laying technique can also be used if there are some small irregularities on the surface of the earth. To mount this structure, you must start by placing a geotextile felt to prevent vegetation from growing. The 60mm PVC studs must be spaced 80cm apart and if a chevron resting on a height of 80mm is placed, the studs will then be spaced 100cm apart. These studs have a sole of 20cm in diameter which allows a maximum pressure of one ton. When the ground is uneven, it is better to make a thin mortar underneath so that the foundation is stable.

How to place the joists on the studs?

The rafters must be fixed to the studs with 6x120mm screws. It is necessary to pre-drill the rafters using a 5mm drill bit and screw into the stud. When there is a connection to be made, the rafter must be screwed at a maximum of 27mm from the stud in order to avoid blocking the adjustment screw. Each rafter must be spaced from the other with an E spacing. This can vary depending on the type of blade used. Above all, check the resistance of the blades. If the length of the rafters exceeds 3m, it is then advisable to put spacers which are fixed in staggered rows so that the joists remain stable and do not warp. It is then necessary to double the rafters to make the finishing plinths and make them overlap with the PVC studs so that the studs do not protrude from the terrace. At the end of the terrace, the screws to be used are 6x120mm. The work must be completed by fixing all the finishing plinths to the posts with rafters, the recommended dimension of which is 60x80mm. The method for mounting a wooden terrace with PVC studs is much simpler than that with concrete studs mainly because of the levels which must be absolutely perfect.