Halflap Cladding

Choose from a wide range of halflap cladding profiles, in a selection of board widths, suitable for both vertical and horizontal installation. Larch and cedar halflap cladding are popular for contemporary building designs.






All dry wood species


Horizontal / Vertical

What is Halflap Cladding?

Halflap cladding is a machined profile supplied with a smooth finish and an overlapping edge detail to create a waterproof façade. We offer halflap cladding in larch, cedar and all other dry timber species.
The halflap profile creates a clean linear appearance, ideal for contemporary new-builds and modern extensions to older properties. Halflap cladding can be fixed vertically or horizontally, although care should be taken to select the correct profile.
Our extensive range of halflap profiles offers a choice of board widths and edge details to suit specific design requirements. The varying lap sizes create a shadow gap from 2mm to 11mm.

Call us to discuss your project


Halflap Cladding from Vastern Timber

Supplied by Vastern Timber sales@vastern.co.uk

  • VHL1 – VHL11
  • Thickness of 20mm
  • Widths of 70mm, 95mm, 120mm, 145mm
  • Random lengths 1.8mt – 3.5mt+
  • Available in various species
  • Supplied uncoated. No treatment required.


Available in
Brimstone Accept-icon
Oak Accept-icon
Green Oak Delete-icon
Green British Elm Delete-icon
British Sweet Chestnut Accept-icon
British Cedar Accept-icon
Green British Cedar Delete-icon
British Larch Accept-icon
Green British Larch/Douglas Fir Delete-icon
Siberian Larch Accept-icon
Canadian Cedar Accept-icon



Random lengths from 1.8mt – 3.5mt+ depending on specie

Depth Overall Width Cover
20mm 70mm 58mm-62mm
20mm 95mm 83mm-87mm
20mm 120mm 108mm-112mm
20mm 145mm 133mm-137mm



How to fix
Halflap cladding is fixed through the face of the board either by hand or with a nail gun. We don’t recommend first fix nail guns because the effect can be a bit untidy but it does work and it is quick.

Because cedar and Brimstone are stable, we recommend installing these with a second fix nail gun. This method is quick and almost invisible.

Begin at the bottom (or the corner if installing vertically), ensuring that the first board is level or straight. Orientate the board so that the shadow gap is facing you and lap that is adjacent to the wall is pointing in the direction of progression.

It is important to include an expansion gap of 2mm between boards.

Hand nailing or first fix nail gun through the face
Insert a single 50mm stainless steel nail located 25 – 30mm above the lower lap. Pre-drill if hand nailing.

Second fix nail gun
(This method is only for Cedar and Brimstone!)

Insert one 50mm stainless brad nail through the lap and one through the face 25 – 30mm above the lower lap. Put the nails in at opposing angles.

Batten type
Treated softwood. 35mm thick x 50mm wide

Batten spacing
400 – 600mm

Nail type
50mm Stainless steel ring shank nail for hand nailing or first fix gun.
50mm Stainless steel brad nail for second fix nail gun.

When to fix
Year round. Ideally September to March


While the utmost care has been taken to provide accurate information, Vastern Timber shall not be held responsible for any consequences arising from any errors or omissions on this website nor for any damages resulting from the use of the information.

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