Calculadora de painéis de cerca composite
Estime tábuas compostas de madeira e plástico, postes de alumínio e concreto para fechamentos modernos e duráveis.
Calculadora de cercas
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Visão geral
O composite une fibras de madeira reciclada e polimeros de alta densidade gerando painéis com aparência de madeira nobre e resistência extrema.
Sistemas atuais utilizam postes de alumínio ranhurados onde as tábuas horizontais se encaixam formando um muro arquitetônico fechado.
Premissas
- Panels use 6-foot wide bays with extruded aluminum structural posts and channel inserts.
- Individual composite infill boards are tongue-and-groove (typically 6 to 8 inches high each).
- Footings require larger concrete volume due to the heavy wind resistance and material weight.
- Includes top and bottom powder-coated aluminum finishing caps and post caps.
Erros comuns
- Não deixar espaço de dilatação nas canaletas dos postes de alumínio.
- Tentar cobrir vãos maiores que 6 pés fazendo a tábua combar no meio pelo próprio peso.
- Fazer sapatas de concreto reduzidas para um material que pesa quase o dobro da madeira.
- Pegar as tábuas pelas extremidades quebrando as linguetas de encaixe.
Fórmulas de cálculo da vedação
A mesma matemática da calculadora, em linguagem clara. Nada é uma caixa preta.
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Tramos
sections = max(ceil(effective run / post spacing), 1)
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Contagem de postes
posts = (sections + 1) along the run, minus named corner and end posts already placed, plus 2 gate posts per gate
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Tramo efectivo
effective run = total length - sum of gate widths
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Contagem de travessas
total rails = sections x rails per section
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Contagem de ripas
pickets = ceil(run in inches / (picket width + gap)); total = ceil(raw x (1 + waste %))
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Passo board-on-board
pitch = picket width - 1 inch overlap
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Contagem de painéis
full panels = floor(run / panel width); add 1 cut panel if the remainder is over 0.01 ft; total = ceil(raw x (1 + waste %))
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Volume de concreto
per-hole = pi x (diameter / 2)^2 x depth; total = per-hole x posts; bags = ceil(total / bag yield)
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Comprimento ajustado à inclinação
slope run = effective run / cos(atan(slope % / 100)); shown alongside, counts use the flat run
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Custo
materials = (posts x post price + rails x rail price + infill x unit price + 60 lb bags x bag price) x regional multiplier; labor = effective run x labor per ft x terrain multiplier x regional multiplier; installed total = materials + gate hardware + removal + permit + labor
Cada número mostrado pela calculadora sai destas fórmulas aplicadas aos teus dados.
Próximo passo
- Calculadora de poste de cerca Calcule postes de linha, postes de canto e postes finais a partir do comprimento e espaçamento do trecho, com concreto para cada poste incluído na decolagem.
- Calculadora de sacos de concreto Transforme o diâmetro do furo, a profundidade e o número de furos em uma contagem de sacos para misturas de 50, 60 e 80 libras, com a matemática do volume mostrada.
Calculadoras relacionadas
- Calculadora de cerca composta Calcule postes, trilhos e tábuas para uma cerca composta, com preços de acordo com seus próprios preços unitários locais para obter uma estimativa de custo total.
- Calculadora de cerca de privacidade de vinil Calcule painéis macho-femea de PVC vinílico, postes canaletados, tampas e bases de concreto para vedaçoes de 6 pés.
- Calculadora de painel de cerca Calcule quantos painéis de cerca pré-montados você precisa, em painéis completos mais um painel cortado para qualquer sobra.
- Calculadora de cerca de madeira Calcule postes, trilhos, estacas e concreto para uma cerca de pinho, cedro ou sequoia tratada com pressão. Cada fórmula mostrada tem custo opcional.
Leituras relacionadas
Guias aprofundados
Guia de compra
A composite fence panel calculator covers a specific modern construction method: horizontal composite boards sliding down into slotted aluminum post channels to form a bay, rather than the vertical board-and-rail framing used by the standard composite fence calculator. Both calculators size composite material, but this one is built around the aluminum channel system that many premium modern composite lines use, where board height, typically 6 to 8 inches per board, determines how many horizontal boards stack to reach a 6 foot bay. The panel-based approach has more in common with the pre-assembled logic in the general fence panel calculator than with board-by-board wood framing, even though the material itself behaves more like the boards counted in a wood fence calculator.
Composite boards in this slotted-channel system run noticeably heavier than the same dimensions in cedar or pine, which is why manufacturers spec robust extruded aluminum posts rather than standard 4x4 lumber posts, and why the concrete footing for each post needs to be sized for that added weight and wind resistance rather than assumed from a lighter wood post table. Running the post count through a fence post calculator and then a concrete bags calculator gives a footing material count tied to the actual post spec rather than a generic post size, which matters more here than on a standard wood or vinyl job because undersized footings show up as leaning posts under a heavier-than-expected panel load.
Leaving proper expansion clearance inside the aluminum side channels is one of the more common mistakes on this kind of system, since composite boards still move with temperature even though they look and feel more rigid than vinyl, and a board installed too tight against the channel can buckle visibly once it heats up in direct sun. Spanning much past the manufacturer's rated 6 foot bay between posts with these heavier boards risks center sagging, so the post spacing in this calculator should match the product's tested span rather than a wider spacing chosen to save on post count. Measuring the actual yard accurately before finalizing bay count matters as much here as on any other fence type, and this guide to measuring a yard for a fence covers the corner and obstacle handling that affects how many full bays a given run actually breaks into.
This style of composite fencing sits toward the premium end of fence pricing generally, since both the composite boards and the extruded aluminum post system cost more than either standard wood framing or basic vinyl panels, and the full cost picture is easiest to see by comparing materials directly through this fence material cost comparison and the more detailed fence cost guide. For buyers weighing this horizontal modern look against a vertical vinyl privacy panel, comparing it directly against the vinyl privacy fence calculator for the same run length is a more useful comparison than price per foot alone, since the two systems differ in post type, footing size and overall installed weight as much as in appearance.
Co-extruded or capped composite boards hold their color far better under UV exposure than uncapped boards, which is worth checking on the specific product's spec sheet before assuming a 20 to 30 year warranty applies evenly across every composite line, a distinction covered in more depth in the fence materials guide. The complete set of panel and board calculators for composite and vinyl sits together on the vinyl and composite calculator hub, which is the fastest way to compare this heavier modern system against lighter-weight alternatives before committing to the aluminum channel approach.
Lifting and handling these boards correctly during installation matters more than it would on lighter wood or vinyl material, since manufacturers generally warn against carrying a long composite board by its tongue edge, the thin interlocking lip that slides into the aluminum channel, because that edge can crack or shear under the board's own weight if it is used as a handhold. Carrying boards flat and supported along their length, and resting them on blocking rather than directly on the ground during installation, avoids both edge damage and surface marking on a capped finish that is meant to stay visible for decades. Post spacing accuracy also compounds differently in this system than in a lighter fence: because the aluminum channels are a fixed manufactured length, a post set even an inch out of position can make a channel bind or leave a visible gap, which is a tighter tolerance than the small play a wood rail-and-bracket system usually allows. Checking each post against a string line before backfilling the footing, rather than relying on a tape measure from post to post alone, catches that kind of small cumulative error before it becomes a channel that will not seat properly once the composite boards are ready to go in.
Perguntas frequentes
Qual o peso do composite em comparação com a madeira?
E de 50 a 80 por cento mais denso e pesado que o cedro ou pinho, demandando postes e bases sólidas.
O composite desbota com o sol?
Painéis modernos coextrudados possuem capa externa protetora que mantém o tom estável durante décadas.
E possível instalar as tábuas na horizontal?
Sim, a grande maioria dos sistemas modernos foi criada especificamente para encaixe horizontal.
Quantas tábuas formam um painel de 6 pés de altura?
Utilizando tábuas de 6 polegadas de altura útil, empilham-se 12 tábuas por vão entre postes.
O composite e sustentável?
Sim, utiliza até 95 por cento de serragem reaproveitada e plásticos reciclados de embalagens.
Precisa pintar ou envernizar futuramente?
Nunca. O pigmento faz parte da fórmula de extrusao e não requer tintas nem vernizes.
Qual a resistência contra rajadas de vento?
Com postes de alumínio chumbados a 36 polegadas suporta ventos superiores a 100 mph.
Como se compara o preço com o vinil ou cedro?
O custo inicial e superior, porem a durabilidade acima de 30 anos sem manutenção compensa o valor.