Frequently asked questions

We work with structural engineers, designers, carpenters and assembly teams. We can handle the complete preparation or selected parts of your project. Your local structural engineer can review our fabrication-stage calculations and incorporate them into the project documentation. Tell us what you already have and where you need our support.

By agreement, we also provide structural calculations for the agreed scope of the structure. The scope, responsible author, price and design basis are agreed before ordering; for projects abroad, we also coordinate with the local responsible structural designer.

We manufacture to individual project requirements, from selected component groups to complete timber structures. Feasibility depends on geometry, material, sections, lengths and machining operations. Send a drawing or dimensioned sketch for an initial assessment.

Include timber lists, structural requirements, joint details and visible-surface requirements where available. Attach existing BVN, BVX or other production files with an overview drawing. Identify the revision and whether you need production planning, timber, connectors or transport. Highlight missing information. If you need fabrication-stage structural calculations for your local engineer’s documentation, please mention this in your enquiry.

Manufacturing requires clearly defined dimensions, sections, materials and connections. If no production model exists, workshop planning and machine data preparation are agreed as separate services. A sketch without developed joint details is not a directly executable CNC file.

Prices in €/m³ are based on the gross material required to manufacture the order, rather than the net volume of the finished elements. The gross quantity includes necessary machining allowances and production waste during preparation and machining. The chargeable gross quantity is stated in the calculation or quotation referenced in the order confirmation.

There are no per-operation surcharges for standard CNC operations within the usual scope. Following technical review, we prepare an individual quotation for non-standard or exceptionally demanding projects. Any price or scope changes are agreed before order confirmation; additional services, materials and transport are specified separately in the quotation.

Data preparation, production organisation and transport have a greater influence on small orders. Assess the whole project. Send component quantities, sections, operations and delivery location so feasibility can be reviewed. Acceptance and any minimum quantities are specified in the individual quotation.

For supplied timber, we need to check material, quality documentation, moisture, actual sections, straightness and allowances. Timber must be free of damaging foreign objects. Agree acceptance, storage, unsuitable pieces and material responsibilities. Do not send timber to production before the arrangement is confirmed.

We agree the schedule based on material availability, production preparation, workload and transport. Completion and delivery to site are separate dates. Tell us your preferred assembly date when enquiring; project changes may affect the agreed schedule.

Our Austrian offer is also presented on holzbau-tusek.at, particularly for Styria and Carinthia. Send the site location, access details and required date with your enquiry. For Switzerland, we also agree import documentation, customs arrangements and associated costs.

Components are cut, machined and marked according to production documentation. “On a pallet” does not mean every structure fits on one standard pallet: long beams require suitable bundles. Connectors, screws, panels, coatings, transport and assembly are included only where listed in the quotation.

Buyer provides adequate and safe access, necessary permits, contact person and equipment and personnel for safe unloading. Waiting, re-delivery or special transport will be charged additionally if they are the result of inadequate access or the buyer's unwillingness. Special delivery requirements must be communicated prior to order confirmation.

A position identifies where a component belongs. Identical pieces may share a position number, so check quantities too. Before installation, compare markings, orientation and current drawings. Request grouping by storey, grid or assembly phase before production and packaging are planned.

Actual timber section, straightness, moisture, machining method and measurement affect the result. One universal tolerance is unsuitable for every component. Agree assembly clearances and contact surfaces for demanding joints. Assess deviations against the approved documents and agreed criteria.

Separate timber, connectors, assembly drawings and any assembly support in the quotation. Clarify who supplies anchors, screws, washers and special connectors. The assembly team must follow the design, connector manufacturer instructions, assembly sequence and temporary bracing requirements.

Bonding or resin-grouting load-bearing connectors is not part of our standard offer.

Check dimensions, sections, materials, visible faces, joints and openings. Approval must identify the revision. Later changes require checking whether timber has already been ordered or machined. New files, rework or replacement components may affect price and delivery.

Report it promptly so the next steps can be agreed. Distinguish transport damage, incorrect components, machining deviations and changed site conditions. Do not modify load-bearing members without approval: new cuts or holes can affect structural performance and the remedy. Agree the repair detail first.

We agree the scope with you and your engineer, including loads, materials, sections, connections and other inputs. Your local engineer checks compliance with requirements at the construction location and integrates the calculations into the overall structural design. Workshop drawings and manufacturing data can then follow the same coordinated solution.

By agreement, we also provide structural calculations for the agreed scope of the structure. The scope, responsible author, price and design basis are agreed before ordering; for projects abroad, we also coordinate with the local responsible structural designer.

State required strength classes, performance and product-marking documents, and any special requirements in your enquiry. Where required, CE marking concerns the specific product and its intended use; it does not approve the whole structure. Additional certificates or quality marks are included only if valid and confirmed for the relevant scope.

It includes cutting, joints, birdsmouth cuts, drilling, other specified machining and marking. It can be performed by hand or by machine. CNC-Abbund uses production data for computer-controlled machining. A rafter with an end cut, bearing notch and prepared holes is a typical example.

The abbreviation comes from the German Arbeitsvorbereitung. Its scope may include the production model, connection details, timber lists, machine files and workshop and assembly drawings. Good preparation also coordinates materials, markings and assembly sequence. Specify which information you provide and which we prepare.

Depending on its equipment, it can saw, drill, mill, slot and mark components. Data preparation and feasibility checks connect the drawing with the finished component. Accuracy also depends on timber condition, reference dimensions, tools and machine settings.

It is used, among other applications, with K2/K3 configurations running EKP. It describes components and supported machining operations. Export software and target machine are relevant to compatibility. Before manufacture, compare BVN data with the drawings and approved order requirements.

The .bvx extension alone does not identify the content version. BVX 1 and BVX 2 may share the extension but differ in structure and support. Specify export software, interface and version. The data must match the production environment and its machining capabilities.

BVN and BVX are Hundegger formats; BTL and BTLX exchange machining data between different software and machine environments. Support depends on the interface. Renaming an extension does not convert a file. A sample export helps check components, orientation, materials and important operations.

IFC may contain geometry and properties; PDF drawings may provide dimensions and overviews. Detailed machining, tolerances, reference faces or connector data may still be missing. Production planning establishes what can be imported and what needs developing. The final export must match the approved documentation.

Check quantities, positions, materials, finished sections, lengths, orientation, operations and missing or duplicated parts. Complex details need attention to machining depth, tool access and assembly drawing references. A production review does not replace structural verification. Agree exceptions and manual finishing before manufacture.

BSH means Brettschichtholz. GL24h is the strength class; h denotes a homogeneous lay-up in terms of lamination strength class. Typical uses include beams, purlins and columns as specified by the structural design. Capacity depends on section, span, loading, stability and joints. It is distinct from cross-laminated timber, CLT.

KVH means Konstruktionsvollholz. Common uses include studs, plates and rafters. It may be finger-jointed along its length or non-finger-jointed. Quality-controlled KVH has a specified moisture content of 15 ± 3%. Agree appearance, dimensions and documentation when ordering.

C24 describes strength properties, not automatically moisture content, planing or visual quality. Specify those requirements, tolerances and finished dimensions separately. Graded sawn timber suits many structures where the design allows it. Straightness and actual section are particularly important for CNC machining.

In each classification, 24 relates to a characteristic bending strength of 24 N/mm². Other properties and application rules differ. It is not a permitted beam load or directly a design stress. A structural designer must check substitutions between BSH GL24h, KVH C24 and sawn C24 timber.

KVH is common for framing, glulam for larger or specifically designed beams, and graded sawn timber for suitable carpentry structures. Consider available lengths, dimensional stability, costs and moisture protection. Several products can be combined if the design clearly specifies each one.

Specify moisture and service conditions when ordering. Dry timber still needs protection during transport and on site. Store bundles raised, ventilated and without standing water. CNC machining can produce accurate geometry at manufacture, but cannot prevent later movement caused by changing conditions.

Specify visible faces, acceptable features, edges and any coatings for exposed beams or columns. Si and NSi describe visible and non-visible applications of KVH; glulam surface quality also needs agreement. Planing alone does not guarantee furniture-grade surfaces or completely crack-free timber.

A 160 × 200 mm blank becomes 154 × 194 mm: 160 − 3 − 3 = 154 and 200 − 3 − 3 = 194 mm. This describes the specified removal, not every planed product. For uneven timber, check whether the allowance achieves the required surface.

154 × 194 mm cannot automatically be treated as 160 × 200 mm. Section area, bending properties, stability and possibly connector edge distances change. Coordinate the production model and joint details. Use the actual intended finished dimensions; checking removed volume alone is insufficient.

With 3 mm removed per face, the theoretical minimum blank is 166 × 206 mm. The actual order size also depends on tolerances, moisture and straightness. Do not automatically deduct another 6 mm from KVH or glulam already supplied at finished size. Clearly distinguish rough, nominal and finished dimensions.

Joint selection follows load transfer, assembly sequence and structural design. Tool access, minimum radii and the possibility of inserting the connected components also matter. Send a dimensioned detail with orientation for confirmation. Complex joints may require both machine operations and manual finishing.

Define tenon and mortise dimensions, depth, offsets and component orientation, plus additional connectors and insertion direction. Milling tools may leave internal radii, so both mating shapes need coordination. Appearance alone does not establish the joint’s load-bearing capacity.

It may use shaped bearing surfaces and designed connectors. It is not a beam extension suitable for any arbitrary position. Check internal forces, remaining sections, bearing areas, connector spacing and assembly conditions. Dimensions from one example are not universal rules for other projects.

The shape guides and restrains components in certain directions, but has no universal capacity. Force direction, geometry, remaining section, splitting risk and assembly path matter. Do not omit metal connectors simply because the timber joint fits well. Machining feasibility depends on the detail and tools.

Provide connector type, diameters, depths, positions, reference faces and any manufacturer details. Hole size follows design and connector requirements; it cannot always be taken directly from the screw’s outside diameter. Early coordination helps avoid later drilling or cutting into finished structural members.

The tenon, connector or inserted part must accommodate that geometry. Options include adjusting the mating part, an approved corner relief or agreed finishing. Extra material removal must remain consistent with structural requirements. A very small radius can increase machining time or limit deep-pocket feasibility.

We select the most suitable machine and process for your project.

Model data provided; we will confirm the feasibility of individual treatments based on the installed configuration and project.

We process sections up to 300 × 450 mm on the K2-450 and up to 300 × 900 mm, with lengths around 20 m, on the K2i-5-900. We choose the machine and machining approach to suit the component and joint. For long members, we also plan handling and delivery to your site.

It handles sections from 20 × 40 to 240 × 480 mm. We plan operations around the installed equipment and your project requirements. When a detail needs a different approach, we use another suitable machine in our workshop.

We can process sections up to 300 × 400 mm. We coordinate the finished size with the workshop drawing and CNC model so cuts, holes and joints match. Removing an agreed 3 mm from each face reduces width and height by 6 mm each. We check the finished section against the project’s structural requirements.

Using your drawings, we coordinate outlines, openings and other machining. Before production, we agree the material, thickness, orientation and relationship to the rest of the structure. You receive panels prepared for the next assembly stage.

ROBOT-Max 1300 is designed to process wooden beams and cross-laminated timber (CLT), even larger sections. The six-axis robotic unit enables the processing of all six sides in one pass, without turning the element.

Model data provided; we will confirm the feasibility of individual treatments based on the installed configuration and project.