Calculadora de Verga de Janela Grátis
Dimensione a verga (lintel) acima das janelas. Calcule o tamanho necessário com base no vão da abertura.
Minimum Header Depth
6 in
Minimum Header Depth vs Opening Span
Formula
## How to Size a Window or Door Header ### General Rules of Thumb For load-bearing walls, header depth increases with span: - Up to 4 ft span: 2x6 header (or doubled) - 4-6 ft span: 2x8 header - 6-8 ft span: 2x10 header - 8+ ft span: 2x12 header or engineered lumber (LVL) Add 2 inches of depth for each additional floor supported above the opening. Non-bearing walls typically need only a flat 2x4 header for plate support. ### Important Note This calculator provides general guidelines. Always consult local building codes and an engineer for final header sizing, especially for spans over 8 feet or multi-story loads.
Exemplo Resolvido
A 4-foot window opening in a load-bearing wall supporting one floor above.
- 01Span = 4 ft, load-bearing wall, 1 floor above
- 02Base header depth for 4 ft span = 6 inches
- 03Additional depth = (1 - 1) x 2 = 0 inches
- 04Header size = 2x6 (doubled) or equivalent LVL
- 05Jack studs needed = 1 per side
Perguntas Frequentes
What is the difference between a king stud and a jack stud?
King studs run full height from sole plate to top plate. Jack studs (also called trimmers) sit beside the king studs and support the header directly. Together they transfer the header load down to the foundation.
Can I use LVL instead of dimensional lumber?
Yes, laminated veneer lumber (LVL) beams are stronger than dimensional lumber and are commonly used for longer spans. A single LVL can often replace a doubled 2x header. Check the manufacturer span tables.
Do non-bearing walls need headers?
Non-bearing walls only need a flat 2x4 header to provide a nailing surface for the top plate. The load is carried by the wall framing on either side of the opening, not the header.
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