Premium glulam from South Tyrol

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Window Planks for Every Application

Scantlings for Wooden Windows

Traditionally, we work with 3-layer scantlings that we produce and distribute in fixed lengths.

- The outer layers are visually premium and provide a beautiful appearance.

- The core layer or middle layer stabilizes the component and reduces tension and warping.

This DKD or DKKD construction is standard in window manufacturing because it offers an excellent balance of stability, aesthetics, and economy.

D+DK for Wood-Aluminium Windows

For particularly deep wood/aluminium window profiles, especially for sashes, we have something special: D+DK scantlings. Even with very demanding and modern profiles, no finger joints are visible anywhere.

Since the middle layer is visible through the deep profiles and window pane position, this layer is executed in D quality. The inner-facing outer layer is 3-sided defect-free, creating an absolutely perfect appearance.

Scantlings for Wood-Aluminium Windows

In wood-aluminium windows, the exterior is protected by the aluminium shell. Therefore, no visually perfect outer layer is needed there. This results in special constructions for frames and sashes, such as DKK or DKKK.

Advantages:

Frame in DKK construction: More cost-effective than DKD, as no premium outer layer is needed on the outside
Excellent static properties

Special Scantlings

We also offer lift-slide door profiles, post-and-beam timber up to 4 meters, and other special constructions with continuous outer layers. Request now!

Standards

The scantlings are glued in accordance with DIN EN 204 D4 — optionally also with PU adhesive — and are IFT-certified. The timber comes from PEFC-compliant sources; we also supply Holz von Hier certified timber to Northern Italy, Austria, Bavaria, and Baden-Württemberg.

Wood species

We process spruce, larch, oak, and Swiss stone pine. More than 90% of the volume is spruce.

Build-ups

We offer window scantlings with continuous outer lamellae in the following versions:

DK(K)D for timber windows –
three-layer or four-layer

DKK(K) and D+DK(K) for timber-aluminium windows –
three-layer or four-layer

and more

Window Plank Range Overview

Spruce DKD – the classic

Spruce DKK – standard for timber-aluminium

Spruce D+DK – premium for timber-aluminium

Spruce DKKD rustic with sound knots – vintage style

Spruce structural scantling – the sturdy one

Spruce HST – for lift-and-slide doors

Larch DKD – standard for timber windows

Larch D+DKK – premium for timber-aluminium

DUO spruce/larch rustic DKKD

Finger-jointed products from Sarner Holz

Scantlings in the standard length of 6 metres are highly versatile and are becoming increasingly important, especially for window manufacturers operating on an industrial scale.

In production, we rely on high-tech solutions and experienced employees. Only the combination of both delivers the quality you expect from us: simple, special.

Enquire now!

Sarner Holz is your partner for first-class scantlings in KKK / KKKK.

Various grades in spruce and larch cover (almost) every requirement for your projects.

All Timber Products for Your Window and Door Production!

In addition to standard scantling requirements, Sarner Holz also offers solutions for special demands.

These include special profiles:

Scantlings for lift-and-slide doors
Structural scantlings
Mullion-transom timbers
Scantling panels
Dimensions over 104 mm in thickness
Widths over 145 mm

We can also further refine and combine the timber to create special products:

DUO scantlings made from two different wood species
Rustic scantlings (with knots or reclaimed-wood look)
Steamed timber
Swiss stone pine scantlings for exclusive projects
Steamed scantlings with sound knots

Learn more

Lift-and-Slide Doors

with face layers in D and K for particularly large lift-and-slide doors

Learn more

Post-and-Rail Timber

for impressive window fronts and constructions

Learn more

DUO Squared Timber

Window scantlings made from two wood species, for example: spruce on the inside and rustic larch on the outside.
The best of both worlds!

About the special products

Steamed Squared Timber

gently steamed for several days, for a rustic look (and captivating aroma)

Stone Pine

For truly special projects, such as protected historic alpine huts, we can also offer Swiss stone pine scantlings with sufficient lead time.

Learn more

Structural Squared Timber

Our anti-warp scantlings combine vertically oriented finger-jointed core layers, continuous outer lamellae, and PU bonding. The result: dimensionally stable, virtually warp-free frames for windows and doors. They protect the construction from bending, reduce stress on fittings and glazing, simplify installation, and ensure precise finishes. Visually, the frames remain straight and clean — a simple, reliable solution for durable, high-quality timber windows and lift-and-slide doors.

Sarner Holz for lift-and-slide doors – stable, precise, reliable

Post-and-Beam Elements from Sarner Holz

South Tyrolean quality for glass façades that impress.

All standard dimensions are available.

The standard version always features finger-jointed outer lamellae.

Make your inquiry now — quick and easy!

Enquire now

Finger-Jointed

The standard version measures 55 × 450 mm in a length of 6 metres — always knot-free and finger-jointed.
On request, we manufacture the dimensions and quality grades you require.

Continuous

Up to 4 metres, we offer continuous outer lamellae.