Detailed pages on the carpentry trade's materials — structural timber, boards, cladding and fastenings: use, types and the considerations you need to know before choosing the right one for the job.
Structural timber
Studs and battens for light framing
Studs/battens for stud walls, formwork and infill. Load-bearing use and span depend on the strength class and load — look it up in the structural calculation/guidance.
Joists and rafters for floors and roofs
Floor joists and rafters for floor separations and roof structures. Maximum span and centre spacing depend on load, strength class and deflection requirements — verify in the structural calculation.
Laminated beam for large spans
Girders and beams over large spans. GL class, cross-section and load capacity are determined by the project and the supplier's sizing data.
Massive trævægge og -dæk til etagebyggeri
Massivt tréplade-element af krydslagte nåletræslag, CE-mærket, leveringsfugt ~12 %. Primær DK-importør: CLT Denmark A/S (KLH®, Svanemærket). Tykkelse og lagsantal fastlægges i projektet — bæreevne, brand (DK NA:2026) og samlingsprincipper følger statikers beregning. Vejledende pris ved forespørgsel hos CLT Denmark (clt-denmark.dk).
Hyppigt spærtværsnit til tag og etagedæk
Et af de mest bestilte spær-/bjælketværsnit i DK. Bærende anvendelse, centerafstand og maksimal spændvidde afhænger af styrkeklasse (C18/C24), last og nedbøjningskrav — verificér i statisk beregning. Vejledende pris 45×95 mm ≈ 22 kr./lbm; 45×145 mm stiger proportionalt (vejledende, juni 2026, wood-online.dk / 10-4.dk).
Boards
Cross-bonded plywood sheet for floors, roofs and formwork
Floor decking, roof decking and formwork. Choose thickness and grade (e.g. moisture-resistant adhesive for exposed locations) according to the application and supplier data.
Subfloor on battens and joists
Tongue-and-groove subfloor on battens/joists. Board thickness is chosen according to the batten/joist spacing (cc) — look up the permitted spacing in the supplier's data.
Cladding of walls and ceilings
Internal cladding of walls/ceilings on a timber or steel frame. The number of layers, board type and screw spacing depend on the fire/acoustic requirements — follow the system supplier's installation instructions.
Vapour-permeable board on the cold side
Wind barrier in lightweight external walls and roofs, placed on the cold side of the insulation. Specific properties (water vapour, fire) and installation follow the supplier's guidance.
Cladding & floor
Exposed timber floor on joists
Exposed timber floor on joists. Use the covering width (not the nominal size) in the material calculation. Thickness is chosen according to joist spacing — see supplier data.
Outdoor decking board on joists/beams
Decking in pressure-treated timber, hardwood, or composite. Lay with a gap spacing matched to the material's shrinkage — joint width and joist spacing follow the supplier's instructions.
Ventilated exterior timber cladding
Ventilated façade on furring battens. Overlap, batten spacing and ventilation gap follow the relevant guidance and the supplier's installation instructions.
Fastening
Steel brackets for concealed beam hangers
Concealed joist hanger onto a beam/wall plate, in hot-dip galvanised steel. Hanger size, nail/screw type and load capacity follow the hanger manufacturer's data sheet.
Steel angle bracket for joining and bracing
Joining studs, rafters and wall plates with a 90° steel angle bracket. The number and placement of fasteners follow the bracket supplier's data sheet and the structural requirement.
Self-drilling screw for timber joints
Load-bearing and non-load-bearing timber-to-timber joints with a hardened, corrosion-protected screw. Screw length, pre-drilling and spacing follow the supplier's instructions and the load on the joint.
Beslag til forankring af spær mod rem
Forankrer spæret mod remmen og modstår vindopriv. Materialevalg afhænger af anvendelsesklasse (AK1: varmgalvaniseret Z275; AK2 + trykimprægneret træ: rustfri 1.4404 anbefales; AK3: 1.4404 obligatorisk). Bæreevne og søm-/skruetype fra beslagleverandørens datablad/ETA (fx Simpson Strong-Tie, strongtie.dk). Standardbeslag fra ~104,95 kr./stk (vejledende, juni 2026).
Fugt & tætning
Standard dampspærre til tag og ydervæg
0,20 mm PE-folie, S_d ≥ 95 m, CE-mærket efter EN 13984. Placeres på varme/indvendige side af isoleringen. Overlæg min. 100 mm, tapede samlingspunkter. Lufttæthedskrav BR18: ≤ 1,0 l/s pr. m² (alm. enfamiliehus). Eksempel DAFA ProFoil 0,20 mm 2×25 m ≈ 599,95 kr. ekskl. levering (vejledende, juni 2026, BAUHAUS). Kilde: BR18 § 287, SBi-anvisning 224, EN 13984.
Mineraluldsplader til træskeletvæg og tagkonstruktion
Diffusionsåben isolering, typisk λ-deklareret 0,034–0,037 W/mK (kontrollér aktuelt datablad). Krævet tykkelse afhænger af U-værdikrav (BR18: ydervæg ≤ 0,30, tag ≤ 0,20 W/m²K) og λ for det valgte produkt. Monteres tæt og uden hulrum — fuger forskydes. Vejledende pris og λ-værdi: kontakt STARK, XL-BYG eller Bygma med produktvalg og tykkelse.