Calcolatore recinzione in redwood
Stima doghe di sequoia, correnti, montanti e calcestruzzo necessari per recinzioni di legno di alta gamma con calcoli chiari.
Calcolatore di recinzioni
Inserisci i tuoi dati. Ogni risultato si aggiorna in tempo reale e mostra la sua formula.
Panoramica
Il legno di sequoia (redwood) e rinomato per il caratteristico colore ambrato, la venatura compatta e la formidabile resistenza agli agenti atmosferici.
La scelta della classe appropriata, come Construction Heart per il contatto con il terreno e Construction Common per le doghe a vista, ottimizza i costi.
Ipotesi
- Structural posts use Construction Heart redwood or ground-contact pressure-treated timber.
- Horizontal backer rails use 2x4 rough or surfaced lumber spaced on 8-foot centers.
- Hole depths meet local building codes (at least one-third total post length in ground).
- Calculations factor a 10 percent contingency buffer for lumber grading variations and cutoffs.
Errori comuni
- Impiegare assortimenti contenenti alburno tenero nei pali interrati invece del durame resistente (Heartwood).
- Fissare le tavole con chiodi in ferro nero che rilasciano colature scure con la pioggia.
- Sottostimare il modello board-on-board, che per via della sovrapposizione richiede il 25-30% di tavole in più.
- Non sigillare le testate tagliate di pali e traverse prima della posa.
Formule di calcolo della recinzione
La stessa matematica della calcolatrice, in parole chiare. Niente è una scatola nera.
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Campate
sections = max(ceil(effective run / post spacing), 1)
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Numero di pali
posts = (sections + 1) along the run, minus named corner and end posts already placed, plus 2 gate posts per gate
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Percorso effettivo
effective run = total length - sum of gate widths
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Numero di correnti
total rails = sections x rails per section
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Numero di assi
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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Numero di pannelli
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 di calcestruzzo
per-hole = pi x (diameter / 2)^2 x depth; total = per-hole x posts; bags = ceil(total / bag yield)
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Lunghezza adattata alla pendenza
slope run = effective run / cos(atan(slope % / 100)); shown alongside, counts use the flat run
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Costo
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
Ogni numero mostrato dalla calcolatrice esce da queste formule applicate ai tuoi dati.
Prossimo passo
- Calcolatore delle macchie delle recinzioni Calcola quanta macchia di recinzione copre entrambi i lati di una corsa per uno, due o tre mani, in galloni e secchi da 5 galloni.
- Calcolatore dei pali della recinzione Calcola i montanti della linea, i montanti d'angolo e i montanti finali dalla lunghezza e dalla spaziatura della corsa, con calcestruzzo per ciascun montante incluso nel decollo.
Calcolatori correlati
- Calcolatore recinzione in cedro Calcola doghe in cedro rosso occidentale, traverse 2x4, pali e sacchi di calcestruzzo per recinzioni di pregio durevoli.
- Calcolatore per recinzioni in legno Calcola pali, binari, picchetti e cemento per una recinzione in pino, cedro o sequoia trattata a pressione. Ogni formula mostrata, costo facoltativo.
- Calcolatore della recinzione di bordo a bordo Calcola i picchetti per una recinzione tavola su tavola, che sovrappone le tavole per la massima privacy da entrambi i lati, con la sovrapposizione incorporata nella formula.
- Calcolatore della recinzione Shadowbox Calcola i materiali per una recinzione shadowbox, che alterna picchetti su entrambi i lati dei binari per un aspetto semi-privato e su due lati.
Letture correlate
Guide approfondite
Guida all’acquisto
California Redwood carries natural resistance to decay, insects and fire along with a distinctive deep red color and tight grain, which is why it sits at the premium end of the wood fencing species this site covers. The post, rail and picket math behind this page is identical to the general wood fence calculator; what changes with redwood is grade selection, since Construction Heart holds up best for posts and any ground contact while Construction Common, with some lighter sapwood streaks, is the more economical choice for above-ground pickets.
Redwood and cedar are the two natural rot-resistant species on this site and get compared constantly: both need stainless or hot-dipped galvanized fasteners to avoid staining, both benefit from a gravel drainage layer under any post set in concrete, and both cost meaningfully more than pressure-treated pine for a similar service life. The deciding factor is usually regional availability and price rather than performance, since the two perform similarly once installed correctly.
Redwood works in any of the styles this site covers, not just a plain butted layout. Board-on-board overlaps boards for full privacy from both sides at the cost of roughly a quarter more lumber than a butted run, while shadowbox alternates boards with a small gap instead, trading some screening for airflow and a lower board count. The board-on-board vs shadowbox vs solid privacy fence comparison applies the same way to redwood as to any other species, since the style decision is independent of what the boards are made from.
Left unfinished, redwood weathers to a silver grey within a year or two as sunlight oxidizes its tannins, so the fence stain calculator is worth running alongside the lumber order if keeping the natural color is the goal. The fence post calculator covers post spacing and count on its own, and how much does a wood fence cost gives a starting budget range before local redwood pricing is entered here directly. The fence materials guide and fence maintenance guide go deeper on species comparison and long-term care.
Ground-contact applications, meaning any redwood post set directly in soil or concrete, call for a higher grade than above-ground pickets, since sapwood lacks the heartwood's natural rot resistance. Using a lower grade below grade than the application calls for is one of the more common and most consequential mistakes on a redwood job, since it undermines the species' main advantage right at the point where moisture exposure is highest.
End grain on any cut redwood post or rail is more vulnerable to moisture intake than the milled faces, so sealing a field cut before installation is a small step that meaningfully extends the life of that piece, particularly on posts cut to length on site. Combined with stainless or hot-dipped galvanized fasteners throughout, these details protect the premium a redwood job costs over pressure-treated pine, rather than leaving that investment exposed at the cut ends.
Redwood is also available in a range of widths beyond the common 1x6 picket, including wider dimension boards sometimes used for a more contemporary horizontal plank look rather than a traditional vertical picket fence. A horizontal layout changes which dimension counts as the run length and which counts as board width in the underlying formula, so it is worth confirming which orientation a given project is using before entering numbers here.
Sourcing is also a bigger factor for redwood than for the other species this site covers, since true old-growth or wide dimensional redwood is less available than it once was and some regions see it priced and stocked very differently than others. Checking with a local supplier on actual available grades and widths before finalizing a design, rather than assuming the grades referenced generally here are stocked everywhere, avoids a design that cannot actually be sourced as specified.
Redwood also responds differently to different finish types than cedar or pine: a penetrating oil finish tends to suit redwood's tight grain better than a film-forming finish like paint or solid-color stain, which can trap moisture against the wood and peel more readily on redwood's dense surface than on a more porous species. That is a maintenance consideration rather than something that changes the lumber order, but it is worth factoring into the finish choice made alongside the material take-off.
Because redwood is harvested from a more limited geographic range than cedar or pine, availability can shift from season to season at a given supplier, and a project planned around a specific grade or width is worth confirming as in-stock before finalizing a design, rather than assuming the same grade will always be available on short notice the way a more widely milled species typically is.
A simple moisture meter reading on a few boards before installation is a low-cost way to confirm a redwood delivery has dried to a reasonable range, rather than relying on appearance alone, which can be misleading on a dense, tight-grained species like redwood.
Domande frequenti
Quale classificazione di redwood e migliore per staccionate?
Construction Heart e consigliata per pali e parti a contatto col terreno; Construction Common e ottima per le doghe aeree.
I pali di redwood vanno gettati in plinti di calcestruzzo?
Sì, ma sempre con 10-15 cm di pietrisco o ghiaia sul fondo del pozzetto per evitare il ristagno attorno alla testa del palo.
Quante doghe servono per 30 metri di recinzione?
Per una recinzione cieca accostata con doghe da 14 cm (1x6), servono circa 220 elementi compreso il margine di sfrido.
La sequoia diventa grigia col sole?
Senza un protettivo per legno con filtro anti-UV, la luce solare ossida i tannini virando il colore verso un grigio argenteo in 1-2 anni.
Quali viti sono ideali per il redwood?
Viti in acciaio inox A2 o A4 per prevenire reazioni galvaniche e macchie scure sulle superfici.
Si può realizzare una recinzione shadowbox in redwood?
Certamente, la disposizione alternata sui due lati favorisce lo scarico della pressione del vento ed e gradevole da entrambe le proprietà.
Come si colloca il costo del redwood rispetto al pino trattato?
Costa da due a tre volte di più rispetto al pino trattato, ma assicura una stabilità dimensionale e un prestigio estetico nettamente superiori.
A che profondità si interra un palo in redwood?
Per recinzioni da 1,8 m, si impiegano pali da 2,4 m interrati da 60 a 80 cm, o comunque al di sotto della quota di gelo.