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Fence Calculator

Calculadora de paneles de cerca composite

Estima tablas compuestas de madera y polimero, postes de aluminio y concreto para cerramientos modernos sin mantenimiento.

Calculadora de vallas

Introduce tus datos. Cada resultado se actualiza al instante y muestra su fórmula.

pies
Ajustes avanzados
Precios locales (opcional)

Introduce tus propios precios locales para ver una estimación de coste. Déjalo en blanco para omitirlo.

Presupuestos guardados

Aún no hay presupuestos guardados.

Introduce la longitud de tu valla para ver el desglose completo de materiales y costes.

Descripción general

El composite combina fibras de madera reciclada y polimeros densos creando paneles elegantes con textura natural de madera y resistencia extrema a la intemperie.

Los sistemas actuales emplean postes ranurados de aluminio donde las tablas machihembradas se deslizan horizontalmente creando un muro contemporaneo.

Supuestos

  • 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.

Errores comunes

  • No dejar holgura de expansión en los perfiles de poste de aluminio, arqueando las tablas al calentarse.
  • Intentar cubrir tramos mayores a 6 pies de luz haciendo que el peso del composite combe el centro.
  • Hacer zapatas de concreto muy pequeñas para una cerca que pesa casi el doble que una de madera.
  • Manipular las tablas por la lengueta pudiendo astillar el encastre macho-hembra.

Fórmulas de cálculo de vallas

La misma matemática que aplica la calculadora, en lenguaje sencillo. Nada es una caja negra.

  • Tramos

    sections = max(ceil(effective run / post spacing), 1)

  • Conteo de postes

    posts = (sections + 1) along the run, minus named corner and end posts already placed, plus 2 gate posts per gate

  • Tramo efectivo

    effective run = total length - sum of gate widths

  • Conteo de travesaños

    total rails = sections x rails per section

  • Conteo de pickets

    pickets = ceil(run in inches / (picket width + gap)); total = ceil(raw x (1 + waste %))

  • Paso board-on-board

    pitch = picket width - 1 in overlap

  • Conteo de paneles

    full panels = floor(run / panel width); add 1 cut panel if the remainder is over 0.01 ft; total = ceil(raw x (1 + waste %))

  • Volumen de hormigón

    per-hole = pi x (diameter / 2)^2 x depth; total = per-hole x posts; bags = ceil(total / bag yield)

  • Tramo ajustado por pendiente

    slope run = effective run / cos(atan(slope % / 100)); shown alongside, counts use the flat run

  • Coste

    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 que muestra la calculadora sale de estas fórmulas aplicadas a tus datos.

Guías detalladas

Guía 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.

Preguntas frecuentes

¿Que tan pesado es el composite frente a la madera?

Es entre un 50 y un 80 por ciento mas denso que el cedro o pino, por lo que exige postes firmes y zapatas generosas.

¿Pierde color el composite con el sol?

Los paneles modernos coextruidos cuentan con un escudo protector exterior que resiste manchas y retiene su tono durante decadas.

¿Se pueden colocar las tablas de composite en horizontal?

Si, la mayoría de sistemas modernos están diseñados exactamente para deslizar tablas horizontales entre postes de aluminio.

¿Cuantas tablas entran en un panel de 6 pies de alto?

Usando tablas de 6 pulgadas de altura útil, se apilan 12 tablas machihembradas por cada sección entre postes.

¿Es ecológico el material composite?

Si, se fábrica con hasta un 95 por ciento de serrin recuperado y plasticos reciclados de botellas y bolsas.

¿Requiere pintar o barnizar en el futuro?

Nunca. El color esta integrado en todo el material y no debe pintarse ni barnizarse en ningún momento.

¿Que resistencia al viento ofrece?

Con postes de aluminio anclados a 36 pulgadas en zapatas de concreto resiste rafagas de viento de mas de 100 mph.

¿Como se compara su precio con el cedro o vinilo?

Tiene un costo inicial superior al cedro o vinilo básico, pero su vida útil sin mantenimiento compensa la inversión con creces.