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API · /deck-api

Deck Builder API

healthy 4,490 Subscribers

Deck-building maths as an API, computed locally and deterministically — the board, joist and fastener counts a homeowner or contractor needs to material out a rectangular deck. The boards endpoint turns the deck size into a real shopping list: rows = deck width ÷ (board width + gap), rounded up, so a 16 ft × 12 ft deck with a 5.5-inch board face (a 5/4×6) and a 1/8-inch gap needs 26 rows; boards run the length, each row takes one 16 ft board, and a 10 % waste allowance brings it to 29 boards plus the linear footage and the deck area. The joists endpoint frames it: joists are spaced along the length, so count = ⌊length ÷ spacing⌋ + 1 — thirteen joists at 16-inch on-center (seventeen at 12-inch for stronger or diagonal decking), each spanning the width, plus two rim joists and a ledger as total framing linear feet. The fasteners endpoint counts the screws: every decking row crosses every joist once and is fastened with two face screws there, so a 16×12 deck takes 26 × 13 × 2 = 676 screws, about 744 with waste — or one hidden clip per intersection. Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, contractor, home-improvement, building-materials and renovation app developers, deck-estimator and takeoff tools, and lumber-yard calculators. Pure local computation — no key, no third-party service, instant. US units (feet/inches). Live, nothing stored. 3 compute endpoints. Rectangular decks; for indoor floor area use a flooring API.

#deck #construction #contractor #lumber #home-improvement #developer-tools
api.oanor.com/deck-api
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Machine-readable spec so AI agents can integrate this API.

/api/deck-api/openapi.json
/api/deck-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
72 ms
Server probes · 24h
Subscribers
4,490
active
Total calls
4
last 7 days
status Full status page → · 8 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 7,600 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 7,600 calls/month
  • 2 req/sec
  • Boards + joists + fasteners
  • No credit card
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Starter

€4.65 /month

  • 52,500 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 52,500 calls/month
  • 6 req/sec
  • Custom board face, gap, spacing & waste
  • Email support
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Pro

€12.55 /month

  • 219,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 219,000 calls/month
  • 15 req/sec
  • Estimator & takeoff pipelines
  • Priority support
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Mega

€39.80 /month

  • 1,295,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,295,000 calls/month
  • 40 req/sec
  • Platform scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Deck of Cards API

A playing-card deck engine as an API. Create a freshly shuffled deck (one or many decks, with or without jokers), draw cards from it, and reshuffle — with full deck state tracked by a deck id so you can deal hands across multiple calls. Each card comes with its code (e.g. AS, 0H), value, suit and a PNG and SVG image URL, so you can render real cards. Draw cards statelessly from a brand-new deck for quick random picks, or keep a deck_id to build a full game. Ideal for card games and game prototypes, Discord bots, teaching and probability demos, and any app that needs a standard 52-card deck. Built on the Deck of Cards service.

api.oanor.com/cards-api

Masonry Estimating API

Masonry estimating maths as an API, computed locally and deterministically — the brick, block and mortar counts a bricklayer, builder or estimator works to. The brick endpoint computes how many bricks a wall needs from its area (or length × height in feet): bricks per square foot = 144 / ((brick length + joint) × (brick height + joint)), so a standard modular brick with a 3/8-inch mortar joint works out to the well-known 6.86 bricks per square foot — a 100 ft² wall is 686 bricks, plus a waste allowance and the mortar bags (about 7 per 1000 bricks). The block endpoint does the same for concrete masonry units: a standard 16×8-inch CMU with a 3/8-inch joint is 1.125 blocks per square foot, with roughly 2.5 mortar bags per 100 blocks. Both endpoints take custom unit face dimensions and joint thickness, add a configurable waste percentage and round up to whole units. Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, masonry-contractor, building-supply and home-improvement app developers, takeoff and material-estimating tools, and trade calculators. Pure local computation — no key, no third-party service, instant. Imperial units (inches and square feet). Live, nothing stored. 2 compute endpoints. This is brick/block and mortar estimating; for poured-concrete volume use a concrete API and for drywall use a drywall API.

api.oanor.com/masonry-api

Roof Pitch API

Roofing geometry as an API, computed locally and deterministically. The pitch endpoint converts freely between the three ways trades describe a roof slope — the pitch as rise per 12 of run (the X:12 notation), the angle in degrees and the slope as a percentage — using angle = atan(pitch/12); a 6:12 roof is 26.57° and a 50 % slope, and it also returns the pitch multiplier √(1 + tan²) that scales a flat plan length to the true along-slope length. The rafter endpoint computes the common rafter length from the horizontal run and the pitch, rafter = √(run² + rise²) with rise = run·tan(angle), and adds the along-slope length of an optional horizontal overhang — a 12-unit run at 6:12 needs a 13.42-unit rafter. The area endpoint converts a flat building footprint into the actual sloped roof surface area, footprint / cos(angle), the figure you need to order shingles, membrane or underlay; a 100 m² footprint under a 6:12 roof is about 111.8 m². Lengths are unit-agnostic — use a consistent unit. Everything is computed locally and deterministically, so it is instant and private. Ideal for roofing, construction, contractor-estimating, home-improvement, solar-install and architecture app developers, take-off and material-ordering tools, and trade software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is roofing-specific geometry; for a general grade or gradient use a slope API.

api.oanor.com/roofpitch-api

Lumber Calculator API

Lumber and framing material-estimation maths as an API, computed locally and deterministically. The boardfeet endpoint computes board feet — the standard volume unit for sawn timber, (thickness_in × width_in × length_ft) ÷ 12 — for a quantity of boards, with the total board feet and linear feet. The studs endpoint frames a wall: the number of vertical studs, ceil(wall length ÷ spacing) + 1 (16-inch ≈ 0.4064 m or 24-inch ≈ 0.6096 m centres), with two extra studs per opening, plus the plate boards for the top and bottom plates. The cost endpoint totals the lumber either by board foot (board feet × price per board foot) or by piece (pieces × price per piece). Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, carpentry and DIY app developers, framing and material take-off tools, and lumberyard and builder calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is lumber and framing estimation; for drywall sheets use a drywall API and for concrete use a concrete API.

api.oanor.com/lumber-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Deck Builder API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Deck Builder API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Deck Builder API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Deck Builder API cost?
Deck Builder API has a free tier with 100 calls / month. Paid plans start at €4.65 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Deck Builder API GDPR-compliant?
All requests to Deck Builder API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/deck-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/deck-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/deck-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/deck-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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